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A hoodlum throws a stone vertically downward with an initial speedof 11.3 m/s from the roof of abuilding, 28.0 m above theground.
(a) How long does it take the stone to reach the ground?(b) What is the speed of the stone at impact?
A 0.300 kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200 kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200 kg puck has a speed of 1.00 m/s at an angle of ? = 55..
Guns on World War II battleships could shell targets 15 km away. Find (a) the minimum launch speed needed to achieve that range and (b) the shell s flight time under these conditions
700 newton Marine in basic traning climbs a 10 meter wall vertical rope at a constant speed in 8 seconds. What is his power output
A 13 g bullet traveling 217 m/s penetrates a 2 kg block of wood and emerges cleanly at 153 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
A 1130 kg car traveling initially with a speed of 25.60 m/s in an easterly direction crashes into the back of a 9 550 kg truck moving in the same direction at 20.0 m/s. What was the velocity of the truck right after the collision
In an elementary-particle experiment, a particle of mass m is red, with momentum mc, at a target particle of mass 2squrt (2m) . The two particles form a single new particle (completely inelastic collision).
Some object moves 220.0 m at an angle of 42° north of west. During this motion, a 68.0 N force acts on the same object, doing +5460.0 J of work on the object. what is this force's orientation
An RLC circuit has a resistance of 2 komega, a capacitance of 32 uF, and an inductance of 52 H. obtain the phase shift between the current and the voltage
q1. what effect will increase in temperature from 25 degree celsius to 32 degree celsius of the metal metre stick have
A railroad car with a mass of 20,000 kg rolls into a second stationary car with a mass of 40,000 kg. How fast was the first car moving before the collision
In Anchorage, collisions of a vehicle with a moose are so common that they are referred to with the abbreviation MVC. What percent of the original kinetic energy is lost in the collision to other forms of energy
A coil with magnetic dipole moment 1.5 A-m^2 is rotated initally with its magnetic moment parallel to a uniform magnetic field of 0.4T. what is the change in potential energy of the coil
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