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A car is hauling a 92 kg trailer, to which it is connected by a spring. The spring constant is 2250 N/m. The car accelerates with an acceleration of0.34 m/s2. By how much does the spring stretch?
A photon of wavelength 0.1800 nm strikes a free electron that is initially at rest, What is the energy of the photon (in eV) after it has scattered from the electron
When on the ground, Ian's weight is measured to be 700 N. When Ian is on an elevator, his apparent weight is 805 N. What is the net force on the system
A 45kg child stands at rest on ice skates. She catches a 0.50kg ball moving horizontally at 9.5 m/s. What is her speed after she caught the ball
Calculate the voltage of an equipotential line between the plates of a capacitor if the distance of the line to the negative plate is m and the intensity is 20 N / C
You are on a cruise ship traveling north at a speed of 13.0 m/s with respect to land. If you walk north toward the front of the ship, with a speed of 2.7 with respect to the ship, what is your velocity with respect to the land
A projectile is launched from a 300 m high cliff at an angle of 30? with an initial velocity of 150 m/s. (g=9.8m/s2). determine the Magnitude of the velocity on impact
Your motorboat can move at 30km/h in still water. How much time would it take you to move 12km upstream, in a river flowing at 6km/h.
Imagine that we connect a 10-mH coil to a battery through a resistor, and it settles down to conducting 1.0A. How much energy is now stored in its magnetic field
Two acrobats are balanced on a very thin rod spinning atop a thin pole. The first acrobat is 45.0 kg at a distance of 2.50 meteres from the pole. What is the moment of inertia of the system
Two point charges, +5.0 µC and ?2.0 µC, are separated by 4.0 m. What is the electric potential energy
Two ice skaters, with masses of 50.0 kg and 85.0 kg, are at the center of a 60.0 m-diameter circular rink. how long does the lighter skater take to reach the edge
Consider three containers of the same volume that are thermally insulated (no heat is transferred) from each other, but are connected by thin pipes that allow gas to pass freely from one to another.
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