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A merry go round accelerating uniformly from rest achieves thespeed of 2.5 rpm in 5 revolutions. What is the magnitude of its angular acceleration?
The temperature of the glass surface of a 30 W lightbulb is 75°C when the room temperature is 18°C. Estimate the temperature of a 150 W lightbulb with a glass bulb thesame size
A van is moving with a constant acceleration, a0, up a hill that makes an angle ? with the horizontal. what is the acceleration of the van
A 1.9 mol sample of hydrogen gas is heated at constant pressure from 302 K to 410 K. Calculate the energy transferred to the gas by heat.
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil, What is the width of the slit
A 5 litters cylinder contains oxygen at 20 C, and 101 kpa. if the temperature increases by 15 C, what is the final temperature of the gas?
Equal masses of 0 oC ice and 100 oC steam are mixed together to form water. What is the final temperature of the water
A golf ball of mass 4.50 10-2 kg is struck by a club. Compute the average force the club exerts on the ball by finding its average acceleration
a dockworker loading crates on a ship finds that a 22 kg crate initially at rest on a horizontal surface requires a
Calculate the total angular momentum of our Moon relative to the center of the Earth. You may assume that the Moon is a uniform sphere
An electron with a speed of 4.00×10^6 m/s , collides with an atom. What is the speed of the electron after the collision
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 165 N/m. The motion of the object on spring 1 has twice the amplitude as the motion of the object on spr..
A microscope has an eyepiece of focal length 2.10 cm and an objective of focal length 4.10 cm. How far from the eyepiece is the image formed by the objective
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