Is it reasonable that a 30-kg child could run fast enough to have 100 J of kinetic energy?
(A). Yes, this is reasonable
(B). No, this is not reasonable

The speed of the blue dot when it is 0.80 m above the road is 11.2 m/s

d = diameter of tire = 0.80 m

r = radius of tire = (0.5) d = (0.5) (0.80) = 0.40 m

v = speed of bicycle = 5.6 m/s

w = angular speed of the tire

Speed of cycle is given as

v = r w

5.6 = (0.40) w

w = 14 rad/s

Radians per second. ω ω = 14 rad/s

Calculation2:

v' = speed of blue dot

Speed blue of dot is given as

v' = v + rw

v' = 5.6 + (0.40) (14)

v' = 11.2 m/s

The speed of the blue dot when it is 0.80 m above the road is 11.2 m/s

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Question:

Express your answer in radians per second. ω ω = 14 rad/s Previous Answers Correct Part B What is the speed of the blue dot when it is 0.80 m above the road?

Answer:

Solar Nebula?

Explanation:

Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. (I thought everyone knew this.)

Answer:

Buoyant force B = V * ρ        volume * density

Since the buoyant force is the same in both cases (salt & fresh)

a smaller volume is required when the density of the displaced water is greater

(A) is correct

The bones of the skull includes the following:

What is the frontal bone?

The frontal bone in an adult is an unpaired bone that is a part of the boney structure that forms the anterior and superior portions of the skull.

The frontal bone consists of two parts which are

These two parts makes up the bony part of the forehead, part of the bony orbital cavity holding the eye, and part of the bony part of the nose respectively.

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Answer:

The wind is an example of motion energy. A dramatic example of motion energy is a car crash—a car comes to a total stop and releases all of its motion energy at once in an uncontrolled instant.

Explanation:

Please give the brainliest.

The uncollided flux density at the outer surface of the tank nearest the source is Ψ• = 3.4 x 10^4 MeV/cm^2.s

In this formula, C represents the source's activity at that precise moment, and 24rCE= is the energy fluence.

We must ascertain what level of activity passes through the shielding since it will diminish when the gamma rays pass through the water and iron.

Using 1.25 MeV as the average 60Co energy will make things simpler. With regard to water and iron, the attenuation coefficients for 1.25 MeV  is the energy fluence are 0.06 cm2/g and 0.058 cm2/g, respectively. first figuring out the intensity, then the iron

I =  1 x 10^-3 x 3.3 x 10^10 x e^(-0.06x1.1) x e^-0.058x7.861

I = 2.6x 10^7 Bq

That is what the cylinder is producing. Using a total radius of 11 cm to calculate the uncollided flux density energy fluence

Ψ• = CE/4πr^2 = 2.6 x 10^7 x 2 x 1.25/4π x 11^2

Ψ• = 3.4 x 10^4 MeV/cm^2.s

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Tactile receptors are the most numerous type of receptors.

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The perception of flashing lights on a christmas tree as continuous movement is due to optical illusion.

Perceptual Illusions: the misinterpretation of a real external, sensory experience. The action of deceiving, especially by appearances. An instance of the sense perception of an external object suggesting a false belief as to its nature.

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The height of the atmosphere would be 7951.33 m.

We are given that,

Pressure = P = 1 atm

Air density = ρ = 1.3 kg/m³

Therefore, the height of the atmosphere when the density is constant can be calculated by,

P = ρ g h

We know that pressure at sea level = 1 atm = 101300 Pa

Thus , putting the values in the above equation,

h = (101300 Pa)/(1.3 kg/m³)(9.8m/s²)

h = 7951.33 m

Therefore, the height of the atmosphere would be 7951.33 m, when the air density is constant.

Note : the correct order of the question is,

Assume that at sea-level the air pressure is 1.0 atm and the air density is 1.3 kg/m3.(a) What would be the height of the atmosphere if the air density were constant?(b) What would be the height of the atmosphere if the air density decreased linearly to zero with height?

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A rock suspended by a weighing scale weighs 3 N when submerged in water and 5 N out of water. F= N1-N2. Substitute 5N for F1 and 3n for F2 above the expression to get F. F=5N-3N = 2N.

The weight of the water volume that the submerged object displaces is what creates the buoyant force. The buoyant force is the weight of water that has the same volume as the rock because the boulder is totally submerged. The buoyant force is still present even though the rock is sinking; it is merely smaller than the rock's weight.

Your perceived weight is equal to the normal force. Therefore, when the elevator accelerates upward or downward, you truly feel a little heavier than usual and a little lighter than usual.

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Jupiter's great red spot is a giant storm about three times wider than the diameter of Earth and at least 100 years old.

A massive storm larger than Earth that has been raging for hundreds of years is Jupiter's famous Great Red Spot.

Numerous moons orbit Jupiter around it. Jupiter also has a number of rings, but they are much fainter and made of dust rather than ice, unlike the well-known rings of Saturn.

It is mostly Jupiter's fault that it is difficult to comprehend the Great Red Spot. Jupiter is a gas-dominated planet that is a thousand times larger than Earth. Its core is surrounded by a liquid ocean of hydrogen, and the atmosphere is primarily made up of helium and hydrogen.

Jupiter's clouds also make it difficult to make precise observations of its lower atmosphere. While some studies of Jupiter have looked at regions in its lower atmosphere, orbiting telescopes and probes studying the Great Red Spot can only see clouds dispersed high in the atmosphere.

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The Net Torque On The Object =7.6 N-m.

The force will cause a torque. The net torque is the sum of the person torques. Rotational Equilibrium is similar to translational equilibrium, where the sum of the forces are same to zero. In rotational equilibrium, the sum of the torques is equal to zero.

The individual torques upload to provide a internet torque approximately the axis. when the ideal sign (fine or bad) is assigned to the magnitudes of character torques approximately a designated axis, the internet torque approximately the axis is the sum of the character torques: →τnet=∑i|→τi|.

Solution:-

Torque= momentInertia*angularacceleration

=> torque= 2.0 x 3.8

=>torque =7.6 N-m

here,

Angular acceleration ,

a  = 3.8rad/s^2

then

Torque  = I * a  = 2 * 3.8  = 7.6 N.m

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If there is a decrease in the angle of inclination, the acceleration would decrease accordingly.

We know that the acceleration is the change in the velocity of the object with time. Given that the mass of the pulley remains the same and the puly is being moved up the incline as we can see.

We have to also recall that we have been told that the incline is frictionless and as a result we are not going to consider the frictional force. In any case, the force that moves the pully along the incline stull depends on the angle of inclination.

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The acceleration of the roll ramp is a = mR² sinθ / I + mR²

The mass of the given object is m

And the radius of the given object is r

the angle of the ramp is given as θ

The expression to calculate the given equilibrium of the object :

mgsinθ - f = ma

this implies f = m( a + gsinθ)

Here we can write

I a' = fR

a' = ( m ( a + gsinθ) ) R / I

The expression without the value of friction can be written as

a = Ra'

Substitute the values in the above expression and we will get:

I a = mR² ( a + gsin θ )

On further solving it by opening the brackets we get

a = mR² sinθ / I + mR²

The acceleration of the roll ramp is a = mR² sinθ / I + mR²

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The outermost energy shell of the atom, where the electrons are situated in relation to the nucleus. the energy levels are-  1 (only"s"), 2 ("s","p"), 3 ("s","p","d"), 4 ("s", "p", "d", "f").

An atom's energy level is the set distance between its nucleus and any potential location for electrons. Additionally, energy levels might be compared to a staircase's steps.

Most major diseases, including heart disease, many types of cancer, autoimmune diseases like lupus and multiple sclerosis, and anemia, commonly manifest with a lack of energy (too few red blood cells). Another typical indicator of depression and anxiety is fatigue. Additionally, a side effect of several drugs is weariness.

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Technology is the use of reliable knowledge for practical purposes.

Ecology is the study of the natural world through observation and experimentation.

Technology refers to the application of scientific knowledge for practical purposes. This is how science and technology are connected. Scientific knowledge develops through observations about the natural world. Observations can raise scientific questions that can lead to hypotheses.

The hypothesis can be tested by experiment. Experimental results lead to changes in scientific knowledge. Science is any body of knowledge dealing with the physical world and its phenomena that requires unbiased observation and systematic experimentation. To be reliable experimental observations must be reproducible.

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Answer:

Second one is Science

Explanation:

A centimeter will be moved by the snail in 10 seconds as opposed to a centimeter being moved in 2 seconds. Accordingly, the snail advances 1 centimeter every 10 seconds.

Traveling is important because it will expose you to a different way of being and living. You'll encounter different people, places, and cultures when traveling, which can give you a wider perspective. A lot of learning and personal growth may occur while traveling.

Nothing is more thrilling than traveling to discover new things and create enduring memories, whether it be by vehicle or by airline. The most fulfilling aspect of traveling is meeting individuals from all around the world. The discussions will increase understanding and might create more significant prospects.

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If a chef drops a pumpkin pie of mass 1.7 kg from a height of 1.875 meter, the time taken by the pie to hit the ground is 0.62 s

According to equations of motion,

s = ut + 1 / 2 at²

s = Distance

u = Initial velocity

t = Time

a = Acceleration

Since it is dropped,

u = 0

g = 9.8 m / s²

s = 1.875 m

s = ut + 1 / 2 at²

1.875 = 0 + ( 1 / 2 * 9.8 * t² )

t² = 1.875 / 4.9

t² = 0.385

t = 0.62 s

Therefore, the time taken is 0.62 s

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A comparison of an object's weight between the two worlds An object's weight is the same on both planets.

The weight of an object is determined by its mass and how strongly gravity pushes on it. How far apart two objects are from one another determines how strong gravity is. Because of this, the same thing weights differently on several planets.

The gravity of planets, moons, and stars is the same. Depending on their size, they have different amounts of gravity. Therefore, gravity is different for larger and smaller planets. A human with more mass has greater gravitational pull, just like the planets.

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When a planet orbiting another star is made primarily of hydrogen and helium and has approximately the same mass as jupiter but is the same size as neptune, it is a false statement.

A planet is defined as the solar body that revolves round the sun. There are various types of planets which include the following:

The statement about the planet is a false statement because it is contradictory. This is so because, in order to be smaller than Jupiter, a hydrogen-helium planet would have to be more gravitationally compressed, so it would have to have a larger mass than Jupiter, also a planet with that size and mass would be too dense to be made of hydrogen and helium.

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On the premise that consumers will be prepared to pay more in exchange for using less energy, energy efficiency measures are based.

Energy efficiency policies, programs, technologies, investments, and habits are advanced by ACEEE through research and outreach. In the future, we want energy efficiency to contribute to the US's economic success, energy security, and environmental sustainability.

How is utilizing multiple policy instruments more effective than use just one? Wider coverage is possible when many policy instruments are used. Cotton was created by Eli Whitney.

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requesting users' signatures on a document confirming their acceptance of the output form and content design

Program Development: One of the SDLC's most time-consuming tasks is program development. It is best to use an organized programming process.

Once the implementation phase is over, the last step begins. The system has a defined support approach in place for the maintenance phase.

The system planning and designing phase of the SDLC includes the parallel run, sizing, and specification freeze phases.

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The maximum speed with which the car can make the turn is 13.69 m/s (Option C)

We'll begin by obtaining the force. This can be obtained as follow:

F = μN

F = 0.75 × 15000

F = 11250 N

Finally, we shall determine the maximum speed. Details below:

F = mv²/r

11250 = (1500 × v²) / 25

Cross multiply

1500 × v² = 11250 × 25

Dive both sides by 1500

v² = (11250 × 25) / 1500

Take the square root of both sides

v = √[(11250 × 25) / 1500]

v = 13.69 m/s

Thus, the maximum speed is 13.69 m/s (Option C)

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The answer is k = 58.486.

Part A. V = 2.094 m/sec

Part B. E = 0.6579 J

Solution:

T = 2√m/k

T² = 4n²m/k

k = 4n²m/T² = 4n² x 0.30/(0.45)²

k = 58.486.

The total energy of a system is the sum of kinetic energy and gravitational potential energy, and this total energy is conserved in one orbital motion. A minimum velocity is required for an object to leave the planet and not return. The total energy operator is called the Hamiltonian operator H and consists of the kinetic energy operator and the potential energy operator. The total energy at any stage of a moving fluid is the sum of the internal static velocity and potential energies at that stage.

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The law of conservation of momentum states that when two or more bodies act on each other in an isolated system, their total momentum remains constant unless an external force acts on them. Therefore, it can neither be created nor destroyed.

m₁v₁ = m₂v₂

For the given question:

m₁ = mass of squid (36 kg)

v₁ = velocity of squid (3.5 m/s)

m₂ = mass of water (3.0 kg)

v₂ = velocity of water

Substitute the values:

36 × 3.5 = 3.0 × v₂

v₂ = 42 m/s

The maximum range:

R = (v₂)²/ g

where,

g = 9.8 m/s² and launch angle 45°

R = 3.5²/9.8

R = 1.25 m

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The complete question is as follows:

We've seen that squid can escape from predators by ejecting water. Some squid do this at the surface of the ocean, thus launching themselves into the air-a particularly effective escape strategy. Suppose a 36 kg squid (not including water) at rest at the surface of the water brings in and quickly ejects 3.0 kg of water to achieve a takeoff speed of 3.5 m/s; these are typical numbers.

At what speed does the squid eject the water?

If we ignore lift and drag forces as the squid flies through the air, what is the maximum horizontal range that the squid can achieve before splashing down?

According to the formula, 2 moles of Co will magenetic produce 2 mole of CO2 and 1 mole of O2 prednisone will produce 2 moles of CO2. This is 602 for 1 mole. 0.5 mol of O2 is consumed. 0.344/2 = 0.172 mol

mol O2 is required, so O2 has a limiting reagent, so O2 mol has 0.172 mol, 0.344, therefore Co

: mol CO₂ production= 0.196 Particles

grams CO₂ production = 0.196 • Hook x 44.01 g CO₂ = 8.6259 g.Co₂

grams CO₂ 2.63 g = 863

5.50G 5.50G

MOL VON LA H 5,50 x I Mol 5,998 15.444

444 444

444

444

444

444

44

२८०२

mol CO = massmolar mass 5,50 g xX I mol

28-018 444 4 =4 mol 4

mols of la H 5.50 x × I mols

5.998 15.

0.344 mol. It represents the absolute or relative direction or magnitude that an object is moving in the sense of motion. Used to describe the size or extent of something. In physics, size generally refers to entities.

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Answer:

m=4kg

Explanation:

F=32, m=?, a=8ms^-2

F=ma

32=8m

32/8=m

m=4kg

Three factors that determine the amount of voltage induced into a conductor are : size of the magnetic field, active length of the conductor and speed at which the conductor passes through the field.

Faraday's Law explains that inducing a voltage in conductor can be done by either passing it through a magnetic field or by moving the magnetic field past the conductor and if the conductor is part of a closed circuit, an electric current will flow.

Coils of wire are used to increase the induced voltage and current because the EMF generated is proportional to the time rate of change of magnetic flux as per Faraday's Law.

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Force is a vector quantity because its acceleration times a scalar constant (mass) equals the force (a vector quantity).

The product of an object's mass and acceleration is used to calculate the force acting on it. A vector quantity is acceleration. Since force is a scalar constant (mass) multiplied by acceleration, which is a vector quantity, force is also a vector quantity (a vector quantity).

Because it genuinely depends on the direction in which a force is applied, force can be thought of as a vector quantity. Physically, the force can be felt as a push or a pull. This is illustrated by many physical examples.

For instance, it makes sense that we must push an object upward in order to make it move upward. It simply remains fixed if we push it downward. Knowing which direction it is pushed is crucial.

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The radial distance from the center of the toroid is 12 cm such that the magnitude of magnetic field through the toroid is equal to that found inside the solenoid.

It is given to us that -

The toroid has 300 windings

The solenoid has 400 turns per meter of length

We have to find out the radial distance from the center of the toroid if the magnitude of the magnetic field is equal to that found inside the solenoid.

We know that the magnitude of the magnetic field inside a toroid is given by -

[tex]B_{t} =[/tex] (μ₀[tex]N_{t}[/tex]I)/(2[tex]\pi[/tex]s) ------ (1)

where,

s = radial distance from the center of the toroid

I = current flowing through the toroid wire

[tex]N_{t}[/tex] = total turns in the toroid

We also know that the magnitude of magnetic field inside a solenoid is given by -

[tex]B_{s} =[/tex] μ₀[tex]N_{s}[/tex]I ----- (2)

where,

[tex]N_{s}[/tex] = turns per unit length of the solenoid

I = current flowing through the solenoid

Now, it is given to us that the magnitude of magnetic field at a radial distance of s inside the toroid is equal to the magnitude of magnetic field inside the solenoid.

=> [tex]B_{t} =[/tex] [tex]B_{s}[/tex]

=>  (μ₀[tex]N_{t}[/tex]I)/(2[tex]\pi[/tex]s) = μ₀[tex]N_{s}[/tex]I

Since it is given that the current is same through both toroid and solenoid, the above equation can be written as -

=> [tex]\frac{N_{t}}{2\pi s} =N_{s}[/tex]

[tex]= > \frac{300}{2\pi s} =400\\= > 800\pi s=300\\= > s = \frac{300}{800\pi } \\= > s = 0.11 m\\= > s = 12 cm[/tex]

Thus the radial distance from the center of the toroid is 12 cm such that the magnitude of magnetic field through the toroid is equal to that found inside the solenoid.

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