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A person is pushing a uniformly-loaded 24.15 kg wheelbarrow along a plank that makes an angle ? = 38.0° with the horizontal. What is the total force the person must apply so that the wheelbarrow is parallel to that plank?
Calculate the minimum required initial velocity for a home run, for baseballs hit at the angles 10 degree, 20 degree, 30 degrees, and 40 degrees from the horizontal
A 193 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. compute the velocity (speed) of the satellite
A 1 115.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 8 200.0 kg truck moving in the same direction at 20.000 m/s. What is the velocity of the truck right after the collision
A circuit consists of a resistor in series with an inductor and an ac generator that supplies a voltage of 115 V. Find the average power delivered in the circuit
A 500g glider on an air track is at rest, and is attached to a spring with a spring constant of 10 N/m. What is the amplitude and period of the resulting oscillations
Two uniform infinite sheets of electric charge densities 17.0 C/m2 and %u201317.0 C/m2 intersect at a right angle. Find the magnitude of the electric field everywhere
Suppose two alpha particles were held together so they were just touching. Estimate the electrostatic repulsive force each would exert on the other
A conducting rod AB sliding with constant speed v=2m/s on conducting rails in a uniform magnetic field with B= 0.15T. What is the current in the rod
David is driving a steady 26 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 at instant when David passes.
Conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound person's voice was so loud in the astronaut's space helmet, Calculate the distance from Earth to the Moon
assume a bar 2.5 m long expands 0.5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated.
In a second training exercise, the centrifuge speeds up from rest with a constant angular acceleration. When the centrifuge reaches an angular speed of 2.50 rad/s.
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