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A 1110 kg car drives along a city street 30.0 miles per hour, and a baseball has a mass of 0.142 kg. What speed must the baseball have if its momentum is to be equal in magnitude to that of the car in mph?
A ball is released from rest at t=0.3s on an inclined segement of track. The ball rolls down the incline onto a 2m section of level track and then continues down a second incline, find the speed of the ball on the level segment of track
A system consists of 4.0 kg of water at 85 degrees Celsius 35 J of work is done on the system by stirring with a paddle wheel, whlie 69 J of heat is removed
A large tank is filled with methane gas at a concentration of 0.585 kg/m3 The valve of a 1.38-m pipe connecting the tank to the atmosphere is inadvertently left open for fourteen hours. What is the cross-sectional area of the pipe
A rifle is aimed at a target that is 55m away. The bullethits the target 1.5cm below the aim point. What was the bullet's flight time? What was the bullets speed as it left the barrel?
An ice chest at a beach party contains 12 cans of soda at 4.93 °C. Each can of soda has a mass of 0.35 kg, determine the final temperature T of the soda and watermelon in degrees Celsius
In 1911 Rutherford discovered the nucleus of an atom by observing the scattering of helium nuclei from gold nuclei.
Find out the magnitude and direction of the velocity of the heavier fragment relative to the ground just after the explosion. Please provide step-by-step method to solve the problem.
A car moving at 20.0 m/s decelerates at 7.00 m/s2. How far will it travel before stopping
an object at rest explodes into three pieces of equal mass. one moves east at 20.0 ms while a second moves northwest at
A 44 kg woman in an elevator is accelerating upward at a rate of 1.0 m/s2. What is the net force acting upon the woman
A circus clown weighing 175 pounds is fired from a cannon at 50 degrees above the horizontal. What was the initial velocity of the clown
What is the smallest diameter spot the eye can produce on the retina if the pupil diameter is 4.50mm ? Assume light with a wavelength of = 510nm
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