Acceleration and deceleration
A hotel elevator ascends 170 m with a maximum speed of 5.8 m/s. Its acceleration and deceleration both have a magnitude of 1.0 m/s2.
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What is the velocity of each ball after the elastic collision? What will be the maximum height of each ball after the elastic collision?
An insulated Thermos contains 116 cm3 of hot coffee at 73 °C. You put a 12.0 g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as
To complete your master's degree in physics, your advisor has you design a small, linear accelerator capable of emitting protons, each with a kinetic energy of 11.5 keV. (The mass of a single proton is 1.67 10-27 kg.) In addition, 1.00 109 protons
A 12 g bullet traveling 229 m/s penetrates a 2.0 kg block of wood and emerges going 166 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
Giving the illusion of gravity. Find the frequency f, the rate at which the space station spin (in revolutions per minute) to create this illusion.
A 1.36-kg bottle of vintage wine is lying horizontally in the rack shown in the drawing. The two surfaces on which the bottle rests are 90.0 apart, and the right surface makes an angle of 45.0 with respect to the ground. Each surface exerts a forc
A single-turn circular loop of radius 8 cm is to produce a field at its center that will just cancel the earth's field of magnitude 0.7 G directed at 70 below the horizontal north direction. Find the current in the loop.
The astronaut observes that the electric field in this universe has a magnitude of 1.20 N/C everywhere and points directly away from the plane. Determine the charge density of the plane.
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