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2.3 kilograms of water are changed (a) from ice at 0oC into liquid water at 0oC and (b) from liquid water at 100oC into steam at 100oC. For each situation, determine the change in mass of the water.
A sports car of mass 1400kg (including the driver) crosses the rounded top of a hill (radius = 95m) at 27m/s. Determine the normal force exerted by the road on the car
A merry-go-round is shaped approximately as a disk and has a radius of 2.1m and a mass of 172kg. A girl of mass 35kg, who is initially standing still next to the merry-go-round, steps onto it and rides at the outer edge. What is the new angular vel..
Suppose a 1.17×104 kg spaceship left Earth at a speed of 0.90c. What is the spaceship's kinetic energy? Compare with the total U.S. annual energy consumption (about 10^20 J).
a-6-nc point charge is located at the center of a conducting spherical shell. the shell has an inner radius of 2 m an
in a pool game a cue ball traveling at 0.80 ms hits the stationary eight ball. the eight ball moves off with a velocity
Assume that your reaction time is 0.50 s and that your car brakes with constant acceleration. How far are you from the intersection when you begin to apply the brakes? Illustrate what acceleration will bring you to rest right at the intersection?
Assume that a certain concave spherical mirror has a focal length of 10.0cm. Determine whether the image is real or virtual
To stop a car, first you require a certain reaction time to begin braking; then the car slows under the constant braking deceleration. What is your reaction time
A 65.0 kg person throws a0.045 kg snowball forward with aground speed of 30.0 m/s. What are the velocities of the two people after the snowballis exchanged
In an ultrahigh vacuum system (with typical pressures lower than 10?7 pascal), find the number of molecules in a volume of 1.70 m3
A 5.60 kg mass is pushed against a spring ( k = 2000 N/m) such thatthe spring is compressed 12.0 cm. The mass is released,slides 1.50 m down the incline, along which μ = 0.140. Determine the kinetic energy as it reaches level ground. (angle ofthe ..
The K^0 particle has a mass of 497.7 MeV/c2. It decays into a p- and p+, each having mass 139.6 MeV/c2. Determine the kinetic energy of the other pion after the decay
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