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A person of mass 75kg hauls himself off the floor up a vertical rope with an acceleration of 0.68m/s. calculate the tension in the rope while he is moving upward with constant acceleration.
Two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 N. If one person applies an upward force equivalent to 60 N at one end, at what point does the other person lift . If the tangential acceleration of a yo-yo at the en..
Expalin by how much does the potential energy of a 18.0-kg child increase when the child climbs a normal staircase to the second floor?
What is the magnitude of the net force on the student.What is the magnitude of contact force on the student by the backpack.
A car travelling at 25.0 m/s runs out of gas while travelling up a 33.0 degree slope. How far up the hill would it coast before starting to roll back down.
You connect five identical resistors in series to a battery whose EMF is 12.0 V and whose internal resistance is negligible. obtain the potential difference across each resistor
How large does the radius R of the dish have to be to attain electric field vector amplitude of 0.1mV/m at the receiver.
What resistive force (assumed to be constant) does the wood exert on bullet? How long does it take the bullet to come to rest.
A shot fired with a velocity 100 m/s on a direction making an angle 60 degree with vertical. Calculate the time of flight
A 11.20 kg object oscillates at the end of a vertical spring that has a spring constant of 2.10 104 N/m. The effect of air resistance is represented by the damping coefficient b = 3 N•s/m.
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 38Nm . You plan to tighten the plugs by pulling on the end of a 30-cm-long wrench. With what force must you pull
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 236 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
A plane is flying southwest at 155 mi/h and encounters the wind from the west at 45mi/h? what is the planes new velocity with respect to the ground in standard position.
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