(b) what mass of lead should be placed on the cube so that the top of the cube will be just level with the water surface?

a. The particles speed up and spread apart,  in a liquid as it turns into a gas.

Particles in liquids are dispersed randomly across the container and are relatively near to one another. Due to the closer proximity of the particles, collisions between them happen more frequently than in gases even if particles are moving quickly in all directions.

A liquid has a fixed shape and volume as opposed to a gas, which is how they differ from one another. While a liquid keeps a consistent volume, a gas adopts the shape of its container. Additionally, gas is more compressible than liquid. This implies that a gas can be compressed into a smaller area than a liquid.

Learn more about particles in liquid here:

brainly.com/question/11036539

#SPJ1

The equation for the motion of a mass on the end of a spring with a period of 0.66 seconds and a stretch of 8.8 cm from equilibrium is

y = (8.8cm)cos(3πt).

Newton's second law, which states that the force acting on a body is equal to that force multiplied by the acceleration of the center of mass of that body, or F = ma, is the basic equation of motion in classical mechanics.

As we are aware, the SHM equation is as follows:

y = Acos(ωt)

Here, we are aware of

ω = 2π/T

Here it is

T = 0.66s

now that we

ω = 2π/0.66

ω = 3π

We now have

y = (8.8cm)cos(3πt).

To know more about mass visit:

https://brainly.com/question/14017869

#SPJ4

The diameter of the ball is 0.4998 m.

Given,

F=581n

Density of water pw= 1.0 x 10³ kg/m³

Density of styrofoam pfoam=95.0 kg/m³

Fb=Buoyancy force

W= Weight of ball

from the Figure

f+w=Fb

Fb-W=f

4/3πR³pwg-4/3πRpfoamg=f

4/3πR³(1000-95) x 9.81=581

R=0.2499m

then the diameter of the ball

d=2R

d=2 x 0.2499

d=0.4998m

the diameter d of the ball = 0.4998m

In physics, force is that power that can change the motion of an item. Pressure also can be described intuitively as a push or a pull.

Force is a push or a pull and it affects our daily lives because, without force, people might not be capable of opening and near stuff or lifting up their arms or legs.

Variety of Forces :

* Frictional Forces

* Tension force.

* Spring force.

* Gravitational pressure.

Learn more about Force here:-brainly.com/question/12785175

#SPJ4

The diameter of the ball is 0.4998 m.

What is diameter?

Any straight line segment that cuts through the centre of a circle and has ends that are on the circle is considered a circle's diameter in geometry. It is also known as the circle's longest chord. The diameter of a sphere can be defined using either of the two methods.

F=581n

Density of water pw= 1.0 x 10³ kg/m³

Density of styrofoam pfoam=95.0 kg/m³

Fb=Buoyancy force

W= Weight of ball

from the Figure

f+w=Fb

Fb-W=f

4/3πR³pwg-4/3π Rpfoamg =f

4/3πR³(1000-95) x 9.81=581

R=0.2499m

then the diameter of the ball

d=2R

d=2 x 0.2499

d=0.4998m

the diameter d of the ball = 0.4998m

In physics, force is that power that can change the motion of an item. Pressure also can be described intuitively as a push or a pull.

Force is a push or a pull and it affects our daily lives because, without force, people might not be capable of opening and near stuff or lifting up their arms or legs.

Variety of Forces :

* Frictional Forces

* Tension force.

* Spring force.

* Gravitational pressure.

to learn more about diameter visit

https://brainly.com/question/13624974

#SPJ4

The correct expression for the resulting velocity is -1/2 vcar. The correct option is c.

The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity.

A car travels down a road at a certain velocity, is Vcar.

Let the initial velocity of the car travel downward be -V car

It is also, given, that the driver slows down so that the car is traveling only half as fast as before.

Resulting velocity = -1/2 vcar

Therefore, the correct option is c. -1/2vcar.

To learn more about velocity, refer to the link:

https://brainly.com/question/18084516

#SPJ1

Most photons that leave the sun's surface have a surface temperature of 6,000 K, which corresponds to the visible light region of the electromagnetic spectrum.

The electromagnetic spectrum is a continuous range of wavelengths and frequencies that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. The wavelengths and frequencies of these different types of electromagnetic radiation are all different and correspond to different regions of the spectrum.

The visible light region of the electromagnetic spectrum is the portion of the spectrum that can be seen by the human eye. It ranges from about 400 nanometers (nm) to about 700 nm in wavelength, and corresponds to frequencies of about 7.5 x 10^14 Hz to about 4.3 x 10^14 Hz. Photons with wavelengths and frequencies in this range have enough energy to excite the photoreceptors in the human eye, allowing us to see them.

Learn more about Electromagnetic Spectrum here:

https://brainly.com/question/13803241

#SPJ4

The magnitude of energy that is lost due to friction is 73.7Joules.

In order to accomplish work and to produce heat and light, energy must be transferred to a body or to a physical system. Energy is the quantitative attribute that does this. Energy is a preserved resource; according to the rule of conservation of energy, energy can only be transformed from one form to another and cannot be created or destroyed.

Computers, vehicles, communications, state-of-the-art medical technology, and many other things are all powered by energy. The demand for dependable and economical energy is especially pressing for emerging countries. It can be beneficial and even life-saving.

Energy required by the body is the kinetic energy

Kinetic Energy = 1 / 2 mv²

m = mass

v = velocity

For the 5.3kg moving at 6.6m/s

kE = 1/2 * 5.3 * 6.6²

KE = 1/2 * 5.3 * 43.56

KE = 115.71Joules

for the 5.3kg moving at 4m/s

KE = 42 joules

Amount of energy lost

= 115.71Joules - 42 joules

= 73.7 joule

Thus, the amount of Energy lost is73.7Joules.

To learn more about energy, follow the link;

https://brainly.com/question/1932868

#SPJ1

Answer:

newton-meter

Explanation:

Work is force times distance.

Force is measured in Newtons, Distance is measured in meters

So Work is measured in Newton*Meters

Answer:

Newton-meter

Explanation:

The newton-meter serves as the unit of measurement for work in the metric system. One newton-meter of work is completed when a weight is elevated one meter in height. Additionally, 6 newton-meters of work are accomplished when 3 newtons are lifted 2 meters.

The time period of the small oscillations for the simple pendulum is found to be  3.14 seconds.

The pendulum is located in an elevator that is accelerating upwards with an acceleration of 6m/s² and length of the pendulum is 4m.

Because the elevator is accelerating in the upper direction the net acceleration of the pendulum will be (10 + 6)m/s².

The period of small accelerations for this pendulum will be given by the relation,

T = 2π(l/a)

Where,  l is the length of pendulum and a is the net acceleration.

Putting values,

T = 2π(4/16)

T = 2π(1/2)

T = π seconds.

T = 3.14 seconds.

So, the time period of this small oscillations for this pendulum is 3.14 second.

To know more about oscillations, visit,

https://brainly.com/question/12622728

#SPJ4

The results that we get from the experiment is accurate within the limits of experimental error. Option E

We know that an experiment is the way by which we can be able to establish a cause and effect relationship. In this case, we can see that there is an inelastic collision that has occurred between the two blocks that have collided in the instance that we can see here.

Looking at the set up of the experiment, it is clear that the  block is given an initial speed toward block , which is initially at rest. the blocks are on a track that has a motion detector set up, as shown above.

All of the set up is okay based on the way that such an experiment ought to be arranged to enable us to get a very accurate result out of the work that has been done here.

Learn more about experiment:https://brainly.com/question/11256472

#SPJ1

Relative to the observer in on the shore, the velocity of the boat is 6.5 m/s, NE.

What is relative velocity?

The velocity of an object in relation to another observer is known as its relative velocity.

We cay say that the relative velocity is equal to the vector difference between the velocities of two objects. The relative velocity of A with respect to B= velocity of the body A – velocity of the body B.

The diagram below shows the calculation where AC is relative speed, AB is speed of the boat and BC is the speed of stream.

To learn more about relative velocity from the given link

https://brainly.com/question/19260269

#SPJ1

The required force is F = 3240 N.

As a result,

1200 kg is the car's mass.

Initial speed of the vehicle, u = 0.

The car's final speed is 27 meters per second.

Thus we have to first calculate the acceleration and then substitutes its value in the force formula

Taking time, t = 10 s

F = m a, where a represents the vehicle's acceleration, is the formula for the required force.

a= v - u / t

thus a = 27 - 0/ 10

a = 27/ 10

F = 1200 X 27 / 10

F = 3240 N.

Therefore, this is the necessary solution.

To know more about force you may visit the link:

https://brainly.com/question/28875770

#SPJ4

The speed of the bullet before it strikes the rod is 67 m/s. To determine the speed of the bullet before it strikes the rod, we need to consider the conservation of angular momentum.

The moment of inertia of a thin rod about its center is given by the following formula:

where I is the moment of inertia, m is the mass of the rod, and L is the length of the rod.

Substituting the values given in the problem, we find that the moment of inertia of the rod is

In this case, the bullet strikes the rod, transferring some of its linear momentum to the rod in the form of angular momentum. The change in angular momentum of the rod is equal to the angular momentum of the bullet.

We can use the conservation of angular momentum to write the following equation:

where I1 is the initial moment of inertia of the rod, w1 is the initial angular velocity of the rod, J is the angular momentum of the bullet, I2 is the final moment of inertia of the rod, and w2 is the final angular velocity of the rod.

Since the initial angular velocity of the rod is zero, we can simplify the equation as follows:

J = I2 * w2

Substituting the values given in the problem, we find that the angular momentum of the bullet is

To determine the speed of the bullet before it strikes the rod, we need to consider the bullet's mass and the angle at which it strikes the rod. The mass of the bullet is given as 3.0 grams, which is equivalent to 0.003 kg. The angle at which the bullet strikes the rod is given as 60 degrees.

We can use the following formula to calculate the speed of the bullet before it strikes the rod:

Substituting the values given in the problem, we find that the speed of the bullet before it strikes the rod is (6.7 kg*m^2/s / 0.003 kg) * sin(60 degrees) = 67 m/s. This is the final answer.

Learn more about Angular Momentum here:

https://brainly.com/question/13822610

#SPJ4

All living organisms are mainly composed of the elements: Oxygen, Carbon, Hydrogen, Nitrogen, Phosphorus.

The correct answer choice is option c.

Living organisms are those things that has life. They include plants and animals. Living organisms be it plants or animals are composed of important elements such as carbon, oxygen and others.

However, there are certain characteristic features which living organisms possess. Some of these characteristics of living things are as follows:

Other characteristics of living organisms are:

In conclusion, we can now confirm from above the explanation given above that living things are made up of certain elements.

Read more on living organisms:

https://brainly.com/question/17259533

#SPJ1

Answer: Clicking sounds and clicking tools + hearing devices to help hear the clicks in loud situations

Explanation:

Some blind people have developed the ability to make clicking noises, either with their mouth or a clicker, and they can listen for the sound of it bouncing off objects around them. Based on the tone, volume, and depth of the click, these people can tell the distance, size, and sometimes material of an object. A clicking device would be a tool that is helpful, as well as any hearing aid that could allow the wearer to hear the clicks better or clearer in a loud environment. (Note: the sound could be anything. It does not have to be a click. Whistles, beeps, chirps, and other sounds also can work for people.)

Answer:

The pressure that skateboard put on ground is 2 250 000 Pa

Explanation:

We have,

Force (F)=900N, Area of single wheel=0.0001m2 but skateboard has four wheels so required area=0.0001x4

P = F/A Area = 4 wheels x 0.0001 m2 = 0.0004 m2 P = 900 N / 0.0004 m2 = 2 250 000 Pa=2250 kPa

Have you ever questioned the need for such sharp knives or the pointy ends on our nails? The idea of pressure holds the answers to each of these queries. It is the ratio between the force being applied and the surface area being applied to. The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure. The SI unit of pressure is the pascal (Pa).

To know more about pressure,

https://brainly.com/question/28012687

#SPJ4

Composition and texture is the primary classification trait used to explain how scientists divide rocks into the three classification.

Rocks can be categorized in one of two ways: first, according to the processes by which they form, with rocks being categorized as either sedimentary, igneous, or metamorphic. Grain or crystal size is another common way to categorize rocks.

Two criteria—texture and composition—are used to categorize rocks. The sizes, shapes, and relationships between the various mineral grains and other components that make up a rock are what determine its texture. The process that created the rock controls these elements.

To know more about primary classification of rocks visit:

https://brainly.com/question/13354874

#SPJ4

A particle moving in a circle has a linear velocity that is related to its angular velocity by the relationship r/r, where r is the radius, based on our understanding of circular motion.The most significant actions must be taken by the person on the outside.

While linear speed v increases with radius, angular speed does not. For instance, to maintain line with the rest of the marching band, the individual on the outside must take the biggest steps.

Therefore, Every particle with a rigid body is subject to the relation v/ r = at any given time.

Learn more about angular velocity here:

https://brainly.com/question/29557272

#SPJ1

The option that is more likely to happen if coastal north Carolina increased implementation of wind energy is The production of greenhouse gases would decrease.

A gas that produces the greenhouse effect by both absorbing and emitting radiant radiation in the thermal infrared range is referred to be a greenhouse gas. The five main greenhouse gases in the atmosphere of Earth are ozone, carbon dioxide, methane, and water vapor.

A renewable energy source is wind energy. It is non-polluting, never runs out, and reduces the demand for fossil fuels, which are the source of greenhouse gases that cause global warming.

By increasing the implementation of wind energy,

To read more about energy, visit https://brainly.com/question/1932868

#SPJ4

Answer: Down below is the answer in complete sentences!

Explanation:

PART A:

Gravity and Acceleration are two additional forces acting upon the sled.

PART B:

Gravity will affect the sled by pulling it down, since the slope of the hill is negative.

Acceleration will affect the sled by gradually increasing it's speed, since the slope is downwards, which in addition to the initial force exerted plus gravity increases the speed, thus the sled accelerates.

The acceleration of the mass along the smooth horizontal surface is 20 m/s².

Acceleration is the rate of change of velocity.

To calculate the acceleration of the mass along the smooth horizontal surface, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the acceleration of the mass is 20 m/s².

Learn more about acceleration here: https://brainly.com/question/29223620

#SPJ1

A normal snowflake may contain 1,000,000,000,000,000,000, or one quintillion, water molecules.

To Learn more About snowflake refer to:

https://brainly.com/question/27563698

#SPJ1

W = -500 J is the work, which is why it's negative because a woman is doing it.

Briefing

The heat transfer into the system,

Q = 9500 J, makes it positive.

(a) Heat and work are added to determine the change in internal energy, which is:

ΔU = Q+W

We replace with:

ΔU = 9500 J-500 J

ΔU = 9000 J\s(b) (b) The quantity of useful work completed given a total energy supply is now what is generally referred to as an efficiency. From this, we may divide the woman's labour by the shift in internal energy, giving us

=  500 j / 9000 j.

We get:

ϵ = 0.0556~ 5.56%

Learn to about Energy

Visit:

https://brainly.com/question/11399976

#SPJ4

The combined mass of the dog and basket is 4750 kg.

To determine the combined mass of the dog and basket, we can use the equation for work, which is defined as the product of the force applied and the distance over which the force is applied. In this case, the force applied is the weight of the dog and basket, and the distance over which the force is applied is the height of the tree house, 4.75 mm.

The equation for work can be written as follows:

where W is the work done, F is the force applied, and d is the distance over which the force is applied.

Substituting the values given in the problem, we get the following equation:

To solve for the force F, we need to convert the distance from millimeters to meters. We can do this by dividing the distance by 1000:

221 J = F * 4.75 mm / 1000 m/mm

= F * 0.004750 m

Solving for the force F, we get:

F = 221 J / 0.004750 m

= 46600 N

The force F is equal to the weight of the dog and basket. The weight of an object is equal to its mass multiplied by the acceleration due to gravity, which is 9.8 m/s^2. Therefore, the combined mass of the dog and basket is:

m = F / g

= 46600 N / 9.8 m/s^2

= 4750 kg

This is the final answer.

Learn more about The equation for work here:

https://brainly.com/question/1268612

#SPJ4

When a car is traveling at speed of 30 km per hour. a bug hits the windscreen and goes splat the bug's force on the windshield is equal to the windshield's force on the bug.

Bug's force on the windshield is equal to the windshield's force on the bug because the system bug-car maintains its overall momentum during the collision, the change in the car's momentum is equal to and opposes the change in the bug's momentum.

To know more about force  visit

https://brainly.com/question/13191643

#SPJ4

Air pressure must  be supplied to remove water from the ballast tanks is  9.8*105  N/m^2.

Buoyancy  is the upward force exerted by a liquid that opposes the weight of a partially or fully submerged object. In a liquid column, the pressure increases with depth due to the weight of the liquid above. Therefore, the pressure at the bottom of the liquid column is higher than the pressure at the top of the column. Similarly, the pressure at the bottom of an object immersed in liquid will be greater than at the top of the object. A pressure differential results in a net upward force on an object. The magnitude of the force is proportional to the pressure difference and corresponds to the weight of the liquid (as explained by Archimedes' principle). This is the displaced liquid that would otherwise occupy the underwater volume of the object.

We know that pressure below the surface of water is P1 = Po +hdg

                    pressure at the surface of water is P2 = Po

Then pressure difference is P = P1 -P2 = hdg

h = depth = 100 m

d = density of water = 1000 kg/m3

g = 9.8 m/s2

Then P = 100*1000*9.8 = 9.8*105  N/m^2

Learn more about Buoyancy here:

https://brainly.com/question/451053

#SPJ4

The disruption of a transverse wave propagates perpendicular to the direction of propagation.

Depending on the type of motion they experience, mechanical waves can either be transverse or longitudinal. It should be emphasized that transverse and longitudinal waves can both have periodic behavior.

Transverse wave: what is it?

An oscillating wave that moves in the opposite direction of its oscillations is referred to as a transverse wave in physics. On the other hand, a longitudinal wave travels in the direction of its oscillations. Water waves are transverse waves.

A transverse wave is what sort of wave?

Transverse waves include phenomena like string vibrations and sea surface ripples. The slinky may be swung horizontally up and down to produce a transverse wave. A longitudinal wave's particles are scattered perpendicular to the direction that the wave is moving.

To know more about Transverse wave visit:

https://brainly.com/question/13863548

#SPJ4

A minimal time period is required to accelerate through x=3.00m because maximal static friction produces the force that creates maximum acceleration.

acceleration is the rate of change in both direction and speed of velocity over time. When anything moves faster or slower in a straight line, it is said to have been accelerated. Because of direction is always shifting, motion on a circle accelerates even while the speed is constant.

A person moves by the help of frictional force, as a result of gtound reaction. So, the formula for frictional force is:

F = μR

where,

F = frictional force

μ = coefficient of friction

R = Normal Reaction = Weight of Body = W = mg

Therefore,

F = μmg

but, from Newton's 2nd Law of Motion:

F = ma

Comparing both equations, we get:

μmg = ma

a = μg   ---------- equation (1)

Now, to calculate the distance moved by a body, we use 2nd equation of motion:

s = (Vi)(t) + (0.5)at²

using equation (1), we get:

s = (Vi)(t) + (0.5)μgt²

where,

s = distance moved by body

Vi = initial velocity of body

t = time taken to cover the distance

g = acceleration due to gravity

(a)

Vi = 0 m/s

g = 9.8 m/s²

s = 3.2 m

μ = 0.5

t = ?

Therefore,

3.2 m = (0 m/s)(t) + (0.5)(0.5)(9.8 m/s²)t²

t² = 3.2 m/(0.5)(0.5)(9.8 m/s²)

t = √1.30612 s²

t = 1.14 s

(a)

Vi = 0 m/s

g = 9.8 m/s²

s = 3.2 m

μ = 0.5

t = ?

Therefore,

3.2 m = (0 m/s)(t) + (0.5)(0.5)(9.8 m/s²)t²

t² = 3.2 m/(0.5)(0.5)(9.8 m/s²)

t = √1.30612 s²

t = 1.14 s

(a)

Vi = 0 m/s

g = 9.8 m/s²

s = 3.2 m

μ = 0.87

t = ?

Therefore,

3.2 m = (0 m/s)(t) + (0.5)(0.87)(9.8 m/s²)t²

t² = 3.2 m/(0.5)(0.87)(9.8 m/s²)

t = √0.75 s²

t = 0.87 s

The rate of change in displacement is known as velocity. Acceleration is the rate at which speed changes. The fact that velocity contains both magnitude and orientation makes it a vector quantity. Acceleration is also a vector quantity since it is simply the rate during which velocity varies.

To know more about acceleration visit:

https://brainly.com/question/12550364

#SPJ4

The kWh used per week by the electric range whose voltage and current is 240 V and 11 A respectively is 18.48 kWh.

A kilowatt-hour is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ).

To calculate the kWh per week of the electric range, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the kWh used per week is 18.48 kWh.

Learn more about electric kilowatt-hour (kWh) here: https://brainly.com/question/13494371

#SPJ1

The magnitude and location of the resultant force on the horizontal gate is: F = w * r * g, and Point A.

Magnitude is a measure of the size or intensity of a physical quantity. It is usually defined as the absolute value of the numerical value of the physical quantity, and is often expressed in terms of a unit of measurement. Magnitude can refer to a variety of different physical quantities, such as size, intensity, brightness, or energy. Magnitude can also refer to the relative size or intensity of two or more physical quantities, when compared to each other.

The resultant force on the horizontal gate is equal to the sum of the hydrostatic forces acting on the gate.
Since the gate is horizontal, the hydrostatic forces acting on the gate will be equal to the pressure difference between the top and bottom of the gate.
This pressure difference is equal to the product of the fluid density, gravitational acceleration, and the gate width.
Therefore, the magnitude of the resultant force on the gate will be:
F = w * r * g
The location of the resultant force on the gate will be at the center of the gate, which is point A.
Therefore, the magnitude and location of the resultant force on the horizontal gate is: F = w * r * g, and Point A.

To learn more about magnitude
https://brainly.com/question/24468862
#SPJ4

Neglecting the gravitational acceleration due to jupiter , the gravitational acceleration at the surface of moon b is 8 m/s².

The gravitational acceleration at the surface of the moon is determined using the equation G*M/r^2, where G is the gravitational constant, M is the mass of the object, and r is the radius of the object.

Calculate the gravitational acceleration at the surface of moon a, using the equation for gravitational acceleration:

g = G * M / r2

where G is the gravitational constant (6.67x10-11 Nm2/kg2), M is the mass of the moon, and r is the radius of the moon.

g = 6.67x10-11 Nm2/kg2 * M / r2

g = 6.67x10-11 Nm2/kg2 * (mass of moon a) / (radius of moon a)2

g = 2 m/s2

Step 2: Calculate the gravitational acceleration at the surface of moon b, using the equation for gravitational acceleration:

g = G * M / r2

where G is the gravitational constant (6.67x10-11 Nm2/kg2), M is the mass of the moon, and r is the radius of the moon.

g = 6.67x10-11 Nm2/kg2 * (2 * (mass of moon a)) / (2 * (radius of moon a))2

g = 8 m/s²

Therefore, the gravitational acceleration at the surface of moon b is 8 m/s².

Learn more about gravitational constant at : https://brainly.com/question/858421

#SPJ4