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A 4.00 kg hollow sphere of radius 5.00 cm starts from rest and rolls without slipping down a 30.0 degree incline. If the length of the incline is 50.0 cm, then the velocity of the center of mass of the hollow sphere at the bottom of the incline is:
An object with total mass mtotal = 16.7 kg is sitting at rest when it explodes into three pieces. Calculate the increase in kinetic energy of the pieces during the explosion
A uniform ion beam of radius R consists of N' ions per meter of mass m, speed v, and charge q. Find the Lorentz Force (due to both E and B) on an ion at the edge of the beam. At what speed would the force become zero?
An 2,705kg truck is stopped at a red light. A 1,903kg car that was moving 9.1m/s bumps into the truck and they stick together. Calculate their speed right after the collision
Physics: Compression of column; constant of a spring, 1. A 4.8-m-tall, 30-cm-diameter concrete column supports a 5.0Ã?105 kg load. By how much is the column compressed?
q1. an object is 14.4 cm from the surface of a reflective spherical christmas tree ornament 8.04 cm in diameter.what is
the speed of a transverse wave on a string is 479 ms while the wavelength is 0.257 m. the amplitude of the wave is 2.06
A prehistoic bug (m=0.02kg) has escaped into the moder world. how fast (and in what direction) is the ubg traveling after the collision
A meteorologist tracks the movement of a thunderstorm with Doppler radar. At 8:00 PM, the storm was 60 northeast of her station. At 11:00 PM, the storm is at 80 north. What is the direction of the average velocity of the storm?
Consider two balls colliding in the absence of external forces. One ball has a mass of 5kg and the other of 7kg. Ball #1 had speeds of 1 m/s and 10 m/s before and after the collision which lasted 0.2 seconds. Compute the average (over time) of the co..
An object weighing 32 lb is released from rest 50 ft above the surface of a calm lake. Before the object reaches the surface of the lake, the air resistance (in lbs) is given by 2v, where v is the velocity (in feet per second).
A pot containing 1.07 liter of water, initially at 23°C, is placed on a 1071 W electric heating element. How much heat is necessary to boil all the water away
A cardinal (Richmondena cardinalis) of mass 3.60×10-2 kg and a baseball of mass 0.140 kg have the same kinetic energy. What is the ratio of cardinal's magnitude p_c of momentum to the magnitude p_b of the baseball's momentum.
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