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An object of mass m1 and velocity v1 undergoes an elastic head on collision with another object of mass m2 that is rest. How do the results of the collision depend on the masses?
If 100 million people exercised for 15 min every day of the year at a power level of 100. W each, how many barrels of crude oil and how many tons of coal could be saved annually?
Find the moment of inertia of a uniform plate shaped like a quarter of a circle of radius R, made to rotate around the square corner (with the rotation axis perpendicular to the plate)
the sun is lower in the sky during the winter than it is during the summer.a. how does this change affect the flux of
An object has a kinetic energy of 313 J and the momentum of magnitude 24.1 kg·m/s. Find out the speed and the mass of the object.
Explain, using thermodynamically sound principles, what each of the following temperatures represents: actual temperature, virtual temperature, dewpoint temperature,
Four identical metallic objects carry the following charges: +5.4 µC, +5.4 µC, -7.0 µC, and -1.6 µC. What is the final charge on each object
A sperical mirror is polished on both sides. When the convex side is used as a mirror, the magnification is +1/8. What is the magnification when the concave side is used as a mirror, the object remaining the same distance from the mirror?
A parallel plate capacitor is made from circular plates of Aluminum foil each with a radius of 3 cm. The distance between the plates is 8 mm. Find the charge stored in this capacitor
Speedy Sue, driving at 34.0m/s, enters a one-lane tunnel. She then observes a slow-moving van 175m ahead traveling with velocity 5.40 m/s. Sue applies her brakes but can accelerate only at 2.00 m/s2 since the road is wet. Will there be a collision..
A stunt driver is attempting to jump 20 cars of total length of 42m using an inclined ramp. Calculate the Minimum angle of the ramp that would allow the stunt driver to clear 20 cars
A body is displaced (1.5i - 2.0j) m while being acted on by the force (2.0i - 3.0j) N. How much work is done on the body by the force
q1. a cylinderical water tank of radius 10ft and height 30ft is half filled with water. how much work is essential to
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