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A 10 kg block of ice has a temperature of -10°C. The pressure is one atmosphere. The block absorbs 4.17 106 J of heat. What is the final temperature of the liquid water?
A flywheel rotates with an angular speed of 22 rev/s . As it is brought to rest with a constant acceleration, it turns 46 rev. What is the magnitude of the angular acceleration
A car rounds a banked curve. The radius of curvature of the road is R .the banking angle is a. the coefficient static friction is f.
q1. an object falls because of gravity at a rate of -9.80 ms2 - sign is indicative of a downward direction for 10.00
A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that is perpendicular to the platform at its center. What is the tangential speed of another child
An electron has an initial velocity of 3.50 106 m/s in the x direction. It enters a uniform electric field = (400 N/C) , which is in the y direction. (a) Find the acceleration of the electron.
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises to a height of 192 m. You estimate your line of sight with the top of the arch to be 4.5° above the horizontal. Approxim..
Compute the force of tension or compression
A 113 gram apple falls from a branch that is 2.5 meters above the ground. Just before the impact, what is the speed of the apple
The contacts worn by a farsighted person allow her to see objects clearly that are as close as 25.0 cm, How far away is the poster actually located
A massless pan hangs from a spring that is suspended from the ceiling. What is the pan's distance from the ceiling when the spring reaches its maximum length
A 65.0 kg base runner begins his slide into second base when he is moving at a speed of 4.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.
Calculate the energy needed to accelerate a spaceship with a mass m = 25 × 103 kg toa speed of 0.40c. Compare this number with the approximate annual energy usage ofEarth, 1021 J
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