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A 500g ball moving at (10.0cm/s, +x) collides with an identical ball at rest.The incoming ball scatters at 30 degrees with respect to the +x axis, while the other ball scatters at 300degrees. What is the speed of the each ball after collision?
An electron moves from point A where the potential is Va=+20.0kV to point B where the potential is Vb=- 40.0 kV. what was the change of the system's electric potential
Water is moving with a speed of 2.0 m/s through a perfectly sealed long pipe with a cross sectional area of 8 cm^2. The water descends 9 m as the pipe changes in area to 6 cm^2.
Calculate the self inductance of a solenoid that has N turns, a length L, a radius R, and is carrying a time varying current I(t)
Find the average force on the driver if the deceleration is accomplished gradually by the application of brakes over a 11.1 s interval
Having taken a nap under a tree only 20 m from the finish line, Rabbit wakes up to find Turtle 19.5 m beyond him, grinding along at 1/4 m/s. How many seconds will he win or lose by
q1. a horizontal uniform bar of mass 2.6 kg and length 3.0 m is hung horizontally on two vertical strings. string 1 is
A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20? and increasing at the rate of 10..
two strings with linear densities of g/m are stretched over pulleys, and attached to hanging blocks (string 1 is 20 kg=mass of block)-50 cm away. what is the unkown mass
An engine has a maximum theoretical efficiency of 45%. If the temperature difference between the input, what is the exhaust temperature
A metal disk with a radius of 10cm and a mass of 6 kg has a hole in the center and is nailed to a wooden post. What is the moment of inertia of the disk
Two charges q = +8.0 µC are fixed a distance d = 9.0 cm apart. You bring a third charge q = +8.0 µC from infinity to C. How much work must you do
What is the propotion of the mass of these excess electrons to the mass of the penny.
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