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A projectile is launched with a momentum of 200 kg*m/s and 1000 J of kinetic energy. What is the mass of the projectile?
A skier starts from rest at the top of a frictionless incline of height 20.0 m, Find the skier's speed at the bottom
Suppose that 1.05 108 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 6.0 105 J of work is required to make the car go one mile, expalin how many miles can the car travel on one ga..
Two identical small insulating balls are suspended by separate 0.208m threads that are attached to a common point on the ceiling. Determine the charge on each ball
a 60.0 n force is applied at an angle of 35 degrees to a 7.00 kg block pressed against a rough vertical wall, What is the coeffiant of kinetic friction in the vertical direction
An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel
When the projectile is at the top of its trajectory, an internal explosion causes it to separate into two fragments of equal mass. One of the fragments falls straight downward as though it had been free from rest.
Find the focal length of contact lenses that would allow a nearsighted person with a 145 cm far point to focus on the stars at night
A 18-cm-long nichrome wire is connected across the terminals of a 1.5V battery. what is the wire's diameter
A 1.8 micro F capacitor is discharged, starting at t=0s. The displacement current through the plates is Idisp = (13A)exp(-t/2.5micro s)
A 64.0-kg runner has a speed of 5.50 m/s at one instant during a long-distance event. What is the runner's kinetic energy at this instant
Electrons in a photoelectric experiment emerge from an aluminum surface with a maximum kinetic energy of 2.1eV
A piece of metal is released under water. The volume of the metal is 37.0 cm3 and its specific gravity is 4.7. What is its initial acceleration
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