If a motor uses 16 W of power to exert a force of 12,000 N to lift an
elevator 8 m, how much time did it take the elevator?

The velocity (magnitude and direction) of the ball  before the collision is 5.05m/s and after the collision is 0.62 m/s

From the law of conservation of momentum and energy

mball g h = 1/2 mball Vi^2

velocityi = sqrt (2 g h)

Vi = sqrt (2 * 9.8 * 1.30)

= 5.05 m/s

--------------------------------------------------

From elastic collision Fron the law of conservation of momentum and energy

velocityf = [m1 - m2 / m1 + m2] Vi

Vf = [mball - mblock / mball + mblock] Vi

Vf = [1.8 - 2.3 / 1.8 + 2.3] 5.05

= - 0.62 m/s

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Methanol has a vapor pressure of 126 at 25 °C.

Vapor pressure features include: It is significant to remember that when a liquid boils, the pressure of its vapor equals the atmospheric pressure. For instance, the vapor pressure of water when it boils at sea level is 1 atmosphere because the surrounding pressure is also 1 atmosphere.

It is the force applied to the unit area of the system's wall. The boiling point method and the transpiration method are the two main experimental techniques used to assess the vapor pressure at high temperatures.

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The final speed after the collision of the blocks is 5u/4. The final speed is given in terms of initial velocity.

Given:

Mass of the first block, m

Mass of the second block, 3 m

The initial velocity of the first block, 2u

The initial velocity of the second block, u

The momentum can be determined from the product of mass and velocity.

From the conservation of momentum:
initial momentum = final momentum

2mu + 3mu = (3 m+m) v

The final speed is:
5mu = 4mv

v = 5u/4

Hence, the final speed after the collision of the blocks is 5u/4. The final speed is given in terms of the initial speed.

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#Complete question is:

shows two blocks sliding on a frictionless surface. eventually, the smaller block overtakes the larger one, collides with it, and sticks. suppose that m

What is the speed of the two blocks after the collision?

A constant net force on a railroad car produces constant velocity.

Force is that which could cause an object to begin to move, or to change its direction, or even stop altogether. Thus force is able to affect the motion of an object that is moving along a begin path.

If the force is constant, then the velocity of the object does not change because the change in the velocity would be caused by a change in the magnitude of the force that acts on the object. Thus the net force remains the same and the velocity also remains the same.

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Missing parts;

A constant net force on a railroad car produces constant:

a. velocity

b. acceleration

c. both of these

d. neither of these

Cells and cell fragments suspended in plasma make up the produced elements. Erythrocytes (red blood cells), leukocytes (white blood cells), and thrombocytes are the three types of produced elements (platelets).

A blood test called a blood smear reveals details on the quantity and composition of blood cells. It frequently occurs in conjunction with or as part of a complete blood count (CBC). An genetic condition known as sickle cell anemia causes the production of defective hemoglobin, which is the red pigment found inside red blood cells.

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Oxygen Transport Drag each label to the appropriate location on the flowchart  is attached.

The biological process of gases being moved across cell membranes to either leave or enter the blood is known as gas exchange. Cells continuously require oxygen for aerobic cellular respiration, which also continuously emits carbon dioxide as a waste product.

Throughout the body, gas exchange occurs between the blood and the cells, with oxygen leaving the blood or entering the cells and carbon dioxide entering the blood. Additionally, there is a gas exchange between the blood and the air in the lungs, with carbon dioxide leaving the blood and entering the air to be expelled from the lungs, and oxygen entering the blood from the inhaled air inside the lungs.

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An icy leftover planetesimal orbiting the sun is a comet.

A comet can be described as an icy, small Solar System object that, when passing close to the Sun, warms and starts to release gases, a process that is known as outgassing. This process forms a visible atmosphere or coma and is due to the effects of solar radiation and wind acting upon the nucleus of the comet.

Comet range from a few hundred meters to 10 kilometers across and are made of loose collections of ice, dust, and rocky particles. If sufficiently bright, a comet can be seen from Earth without a telescope.

Comets have eccentric elliptical orbits and short-period comets originate in the Kuiper belt which lies beyond the orbit of Neptune. Hyperbolic comets can be seen once through the inner Solar System.

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The constant are a=3 and τ=4.

What are exponential functions?

The exponential function is a mathematical function of the form f(x) = ax. where "x" is a variable and "a" is a constant called the base of the function, which must be greater than 0. The most commonly used exponential base is the transcendental number e, which is approximately equal to 2.71828.

What is the formula of exponential function?

The exponential function is defined by the formula f(x) = ax. where the input variable x appears as an exponent. An exponential curve depends on the exponential function and the value of x.

The exponential function is an important mathematical function of the form:

                                       f(x) = [tex]a^{x}[/tex]

Therefore, the constant a=3 and τ=4.

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Using the same scale that was used to draw A and B, measure the length of the resultant, R, to determine its magnitude. The overall change in location in this case is 200 m east plus 400 m east, which equals 600 m east.

Displacement is characterized by the final position minus the starting position.

The displacement is only the difference between the locations of the two marks and is unrelated to the route used to get there. The total length of the path between the two markings, however, is the distance travelled.

Displacement and distance, however, are two distinct ideas. The total distance travelled is larger than the displacement between those two points if an object changes direction while travelling.

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The speed of the satellite of mass 500.0-kg is in a circular orbit at an altitude of 300 km above the earth's surface is 7726.58 m / s

Fc = m v² / r

Fg = G M m / r²

Fc = Centripetal force

m = Mass

v = Tangential Velocity

r = Distance

Fg = Gravitational force

G = Gravitational constant

M, m = Masses

The rotational motion of the satellite is due to the gravitational force of Earth.

Fc = Fg

m v² / r = G M m / r²

v² = G M / r

v² = 6.67 * 10⁻¹¹ * 5.98 * 10²⁴ / ( 6380000 + 300000 )

v² = 39.89 * 10¹³ / 6680000

v² = 59.7 * 10⁶

v = 7726.58 m / s

Therefore, the speed of the satellite is 7726.58 m / s

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Answer:

Objects moving in circles possess a speed which is equal to the distance travelled per time of travel. By multiplying the rotational frequency with the circumference, we can determine the average speed of the object.

There seems to be one location where the Fahrenheit or Celsius scales meet. At both -40 °C und -40 °F, they are equal.

Because it is used in conjunction with the metric scale, the Fahrenheit scale is more frequently utilized. It makes reasonable that they utilize the Celsius scale as well since the majority of nations use the metric system. It is also simpler to convert from Celsius to Kelvin for this reason.

The letters °C or just C can be used to denote temperatures in Celsius as a number of degrees. The temperature difference between boils and ice is 100 degrees Celsius, whereas it is 180 ° Fahrenheit.

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The average force by which the bullet will hit the tree is F = 4.50945 × [tex]10^4[/tex] N .

Given : mass of the bullet = 7.5 gram

u or intial velocity = 483 m/s

v or final velocity = 0 m/s

h or height = 19.4 cm

v²  = 2as + u²

0 = 38.8 a + 483 × 483

-  483 × 483/ 38.8 = a

thus acceleration = 6012.6 m/s²

F = ma

Thus on substituting the values we get

F = 7.5 × 6012.6

F = 45,094.5 N

or

F = 4.50945 × [tex]10^4[/tex] N

The magnitude of the average force is F = 4.50945 × [tex]10^4[/tex] N .

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Answer:

Hydrocarbons

Explanation:

quizlet

The equivalent resistance in the series circuit is 130 ohm.

Resistance is the opposition to current flow in a electrical circuit.

To calculate the equivalent resistance of the resistors the series circuit,  we use the formula below.

Formula:

Where:

From the image,

Given:

Substitute these values into equation 1

Hence, the equivalent resistance is 130 ohm.

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As the raindrops do not provide a continuous path to flow the electrons because the air between the rain droplets acts as an insulator, therefore, the person walking under an electric transmission line would not be electrocuted.

In physics, a conductor can be described as a type of material that allows the flow of charge in one or more directions. Electric current is produced by the flow of negatively charged electrons or ions in some cases.

Raindroplets have dissolved impurities which make them somewhat conductive of electricity, but conductors should be continuous to create a conducting path at normal voltages.

The electric current can only flow when there is a continuous path of conductive material providing a conductor for electrons to travel through. The continuous flow of electrons needs to be an unbroken path to allow it to flow.

Since the air can be considered an insulating material and an air gap separates prevents a continuous path has been broken therefore electrons cannot flow.

Therefore, due to the absence of the closed circuit, you would not be electrocuted during a rainstorm if you walked under an electric transmission line.

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The speed at the bottom is 10 m/sec.

The speed of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.

I have a 10kg crate on top of a ramp that has a 30m long surface and rises 5m in the air. If the μk is .05,

work = change in kinetic energy

mgh = 0.5 mv²

10*10*5 = 0.5 * 10 * v²

v = 10 m/sec

The speed at the bottom is 10 m/sec

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2.18X103 N force must be exerted on a nail with a circular tip of 1.00 mm diameter to create a pressure.

diameter, d = 0.95 mm = 0.95x10-3m

P = 3.1X10^9 Pa

r = d/2 = 0.95/2 x 10^-3 m

= 0.475 x 10^-3 m

Area = [tex]\pi[/tex] r2

= 3.14 x ( 0.475 x 10^-3 m)2

=  = 3.14 x 0.225 x 10^-6

= 0.706 × 10-6 m2

Force = PXA

= 3.1 x 10^9 x 0.70 6 × 10^-6

F = 2.18X103 N

Pressure , within the physical sciences, the perpendicular force in step with unit per area , or the stress at a factor inside a restricted fluid.

A easy instance of pressure can be seen by retaining a knife to a bit of fruit. In case you keep the flat part of the knife towards the fruit, it might not reduce the area. The force is spread out of a massive vicinity (low strain).

The SI unit of pressure is pascal (represented as Pa) which is identical to one newton in line with rectangular metre (N/m2 or kg m-1s-2).

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Surface of the conductor, 0.02mm

According to Gauss's law, the electric charge enclosed in any closed surface immediately proportionally affects the total quantity of electric flux travelling through it. Gauss's Law is mostly used to determine the electric field resulting from infinite symmetries, such as a uniformly charged straight line.

The remarkable German mathematician and physicist Karl Friedrich Gauss is recognized by the law's name. The amount of field lines that cross a surface affects how much electricity flows through it. Note that this indicates that the magnitude is inversely proportional to the area of the field that is perpendicular to it.

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The percentage of the total initial kinetic energy that is lost during the impact is 11/17J. Because two bits of clay are travelling straight toward one another at a speed.

They stick together and move as a unit when they crash into each other. A moving object or particle's kinetic energy, which depends on both mass and speed, is one of its characteristics. The type of motion can be vibration, translation, rotation around an axis, or any combination of these. Kinetic energy is a type of energy that an item or particle possesses as a result of motion.

Piece weight is 300 g.

1 m/s for each piece's speed

The other portion weighs 600 g.

0.75 m/s is the speed of the other piece.

making use of the kinetic energy formula

K.E = 1/(m1+m2)v2 K.E = 1/(300*10-3+600*10-3)*(-0.5)2\s

K.E = 0.1125J

Energy wasted equals 11/17J - 0.1125/0.31875 energy lost

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The complete question is -

Two pieces of clay are moving directly toward each other. When they collide, they stick together and move as one piece. One piece having mass 300 g is moving to the right at a speed of 1 m/s. The other piece has mass 600 g and is moving to the left at a speed of 0.75 m/s. What fraction of the total initial kinetic energy is lost during the collision?

The statement that is correct about the tension forces that are acting on the body is that T1 + T2 = P.

The term tension has to do with the force that acts on an object that is pulled by a rope. Thus the tension force does act along the rope that is pulling the object along.

Now we can see from the image that there is an object that is acted upon by forces and these forces are equal in magnitude to the weight of the object.

Having said that we can see that the weights of the objects are not all the same and then the resultant of the tension force that is acting on the masses as they are joined would be given as P. It is also important to note that all these forces are acting along the same direction thus the resultant of the tension forces can be obtained by an addition.

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The asteroid would continue on its original, unbound orbit when it left Jupiter, with no alteration to its orbital path.

The greatest planet-killing-sized asteroid in eight years has been found, according to astronomers, and it will cross Earth's orbit. Researchers seeking for space pebbles in the orbits of Earth and Venus discovered the asteroid 2022 AP7, which they called.

One method we might be able to change an asteroid's trajectory is through kinetic impactors. In order to use this method, an asteroid must be smacked in order to alter its orbit such that it is no longer a hazard to Earth.

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The most likely cause of Arturo problem is due to a failure of encoding.

option C is the correct answer.

Encoding Failure refers to the brain's occasional failure to create a memory link.

Encoding refers to the brain's ability to store and recall events and information, either short or long-term.

There are several reasons that can cause the failure of the encoding memory and they include the following:

Generally, any damage the memory can cause encoding failure.

Thus, if Arturo has looked at his watch thousands of times, and he is unable to recall whether the watch features Arabic or Roman numerals, we conclude that it is encoding failure.

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The average force applied on the egg is small because of the large time interval in which the egg is in contact with the bed sheet. This is because force is inversely proportional to time.

Force is a measure of the change of momentum over time. It can be written as Force = mass x acceleration (change in velocity/ time). The momentum of an object increases when an external force is acting upon the object, because that force is causing it to accelerate, and to have an increase in the velocity of the object.

The force acting upon an object is inversely proportional to time, with the increase in time, the applied force decreases. However, for constant acceleration, this quantity does not change. The average force on the egg is small because of the large time interval in which the egg is in contact with the bed sheet.

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The velocity of Ball 2 after the collision is 3.4m/s.

When two bodies collide, according to the law of conservation of momentum. The total kinetic energy before and after collision will be the same.

Using the law of conservation of momentum;

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

Given, m₁ = 10.00kg

u₁ = 1.7m/s

m₂ = 5.00kg

u₂ = 0m/s

v₁ = 3.4m/s

Substitute the given values

10(1.7) + 5(0) = 10(3.4) + 5v₂

17 + 0 = 34 + 5v₂

17-34 = 5v₂

-17 = 5v₂

v₂ = -3.4

v₂ = 3.4 m/s

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The instantaneous velocity of the object one second later is 14.8 m/s.

The instantaneous velocity of the object one second later is the measure of rate of change of displacement of the object at the given time period.

The instantaneous velocity of the object after 1 second is calculated as follows;

v = u + gt

where;

v = 5 m/s   +    9.8 m/s²(1 s)

v = 14.8 m/s

Thus, the instantaneous velocity of the object depends on the initial velocity and time of motion.

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A teach sounds its horn as it techniques an intersection. the horn can simply be heard at a stage of 48 dB through an observer 10 km away: A. P= 315.667W, B. β=one hundred.37dβ.

Factor of intersection manner the factor at which traces intersect. these strains are represented through the usage of the equation a1x + b1y + c1= zero and a2x + b2y + c2 = 0, respectively. Given discern illustrate the thing of the intersection of lines. we can discover the factor of the intersection of three or extra traces additionally.

Calculation:-

Tajenotay of pom Ward

B= 1 15 |S)= + => sixty four> 10 Jen [ ee wie]

L> Ts 2-542x% 10° wim?

power generated by using horn

tos Pa RS> > Pz Tan?

—+P= 2-512 106 Wim? x47 [ 104 m)2

= slaB= tp dey zat)

Gg= 24S: COW

Jog AR (forty eight m)*

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Answer:

They are all units of pressure

Answer: a periodic wiggle in time is called a vibration, while a wiggle in space and time is a wave. ... The source of all waves, whether mechanical or electromagnetic, is something that is vibrating.

Explanation: