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The assembly made with massless strings attached to balls. Ball A (m=0.3kg) is released from height 0.2m above ball B (m=0.5kg) also at rest. The two undergo an elastic collision. What max height does each ball achieve after collision?
how high does it rise above the point of release. guess the speed of the car just before braking.
One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. calculate the component of the earth magnetic field perpendicular to the entering electron beam
The stoplight had just changed and a 1900kgCadillac had entered the intersection, heading north at 3.4m/s , How fast was the Volkswagen going just before the impact
A 3 kg box is pushed across a frictionless horizontal floor with a force F = 20 N that makes an angle of 25° with the horizontal. The box moves 18 m.
An astronaut is stuck in space with no fuel for his thrusters. He is 250 m away from his ship and only has a heavy wrench in his possession. How long does it take the astronaut to reach his ship
An 88 g arrow is fired from a bow whose string exerts the average force of 110 N on the arrow over a distance of 78.00 cm. What is the speed of the arrow as it leaves the bow.
If F(r) is the force on an object as a function of of radius r, show that the "tidal" force on an object of lenght delta r is delta F= (dF/dr)delta r
An astronomical telescope is designed with an overall magnification of 80x. The objective has a focal length of 98.0 cm. How far should the eyepiece be from the objective
A ski jumper takes off at an angle 20 degrees above the horizontal with a speed of 30.0m/s, Calculate the time of flight
Force F? =?15j^N is exerted on a particle at r? =(5i^+5j^)m. What is the torque on the particle about the origin
Determine the current I flowing through a solenoid, if the magnetic flux inside its core is found to be 2.60 multiply.gif 10-4 Wb.
Two equally charged particles each have a mass of .015kg. They are suspended by a light string. determine The magnitude of the repulsive electric force
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