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While an elevator of mass 824 kg moves downward, the tension in the supporting cable is a constant 7736 N. Between t = 0 and t = 4.10 s, the elevator's displacement is 5.05 m downward. What is the elevator's speed at t = 4.10 s?
A steel beam is suspended completely under water by a cable that is attached to one end of the beam, so it hangs perpendicularly. Another identical beam is also suspended completely under water, but by a cable that is attached to the center of the be..
assume a block of mass 25.0 kg rests on a horizontal plane, and the coefficient of static friction between the surfaces is 0.220. what is the actual static frictional force that acts on the block if an external force of 25.0 N acts horizontally on..
A 5g lead bullet travelling at 370-m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet whilst the other half is transmitted to the tree, what is the increase in t..
What is the work completed by the force of gravity.
The loaded cab of an elevator has a mass of 3000kg and moves 216-m up the shaft in 23s at constant speed. At what average rate does the force from the cable do work on cab.
A gymnast with mass m1 = 40 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 110 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
one of your classmate has a friend with a boat. here is your classmate on water-skis being towed. in the absence of friction your classmate (m=62kg) would accelerate at 2.23m/s^2.
explain the electric flux through the surface of the cube. Calculate the volume charge density of the atmosphere, assuming it to be uniform between 270 and 420 m.
What are the two main mechanisms that the planet Earth uses to balance water that goes up with the water that comes down over Earth.
Determine how many times greater heat loss occurs through a glass window thats 80.0 cm high, 70 cm wide, and 0.300 cm thick (k = 0.791 W/m°C) than a electrical supply line running outside to an exterior mounted light.
What is the direction of proton after the collision? What is the direction of carbon atom after the collision.
The magnitude of the electrostatic force between two identical ions that are separated by a distance of 0.90 nmis 4.103×10-8 N, How many electrons are missing from (or have been added to) each ion
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