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A $100 cart is moving down an inclined plane at 1.30 m.s, The cart collides with a stationary object and rebounds with a speed of 0.970 m/s. The mass of the cart is 0.500 kg. Find the impulse from the collision. What was the change in momentum? What was the change in kinetic energy?
a uniform rod of mass 2m is completely free to move and is initially at rest. a particle of mass m hits one of its ends
A 13.0 mu F capacitor is connected to a power supply that keeps a constant potential difference of 26.0 V across the plates. By how much did the energy change during the insertion
Engine oil (?=0.20Pa?s) passes through a 2.60mm diameter tube in a prototype engine. What pressure difference is needed to maintain a flow rate of 6.5mL/min
Three blocks, each having a mass of 1.21 kg, are connected by rigid rods of negligible mass and are supported by a frictionless surface. Forces F1 and F2, of magnitude 4.95 N and 11.6 N respectively, find The magnitude of the force applied by the r..
A long horizontal wire carries 26.0A of current due north. The Earth's field 22.0cm due west of the wire points north but downward, 47° below the horizontal, and has magnitude of 5.0×10-5T.
A steel ball is dropped from a building's roof and passes a window, taking 0.13 s to fall from the top to the bottom of the window, a distance of 1.20 m. How tall is the building
A solid conducting sphere with radius R carries a positive total charge Q . The sphere is surrounded by an insulating shell with inner radius R and outer radius 2R . The insulating shell has a uniform charge density rho.
What must be the mass m2 of the hanging block if it is to descend 11.0m in the first 3.00s after the system is released from rest
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m..
The angular position of a point on the rim of a rotating wheel is given by %u03B8 = 4.01t - 6.34t2 + 2.63t3, What are the angular velocities at t = 3.19 s and t = 6.06 s
an inventor has a rough design for a light fixture with a dimmer knob. the fixture contains a 50-microf capacitor an
A large log is located on the icy surface of a frozen pond; for this problem, the ice may be assumed to be a frictionless surface. find the total horizontal force acting on the log
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