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While an elevator of a mass 2530 kilogram moves upward, the force exerted by the cable is 33.6 kN. Find what is the acceleration of the elevator? If at some point in motion the velocity of the elevator is 1.20 m/s squared upward, Find what is the elevator's velocity 4.0 seconds later?
a disk of radius 0.2meters and mass 0.25kg is free to rotate without friction about an axis through its center and
In an LC circuit, the amplitude of current oscillations is 2A and the amplitude of the voltage oscillation across the capacitor is 3V. If the capacitance is 5muF, what is the inductance?
A spacecraft receding from he earth at 0.97c transmits data at the rate of 1*104pulses/s. At what rate are they received.
two forces are applied to a stump by two tractors. one is a 150 n force to the east. the other is 100 n in a direction
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
a ski gondola is connected to the top of a hill by a steel cable of length 620 m and diameter 1.5 cm. as the gondola
Consider a charged metallic spherical shell of radius a=1.75 cm.The potential at a distance of r=6.0 cm from the center of theshell is measured to be 1.5kV. What is the charge on theshell? Calculate the potential on the surface of theshell.
Write down the expression for net torque
A child in danger of drowning in a river is carried downstream by a current that flows uniformly with a velocity of 2.0 meters per second.
a positive charge of q1 is located 7.00 m to the left of a negative charge -q2. the charges have different magnitudes.
Satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 3.70 104 s. What is the speed at which satellite travels.
The drill bit of the variable-speed electric drill of radius 0.03 m has constant angular acceleration 2.5 rad/s^2. The initial angular speed of the bit is 4 rad/s. What is the angular speed after 4 seconds and angle has the bit turned through that ti..
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