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A person is trying to move a block of wood by pulling on it with a rope. The rope makes an angle of 15° with the ground. The mass of the wooden block is 100 kg, and the coefficient of static friction between the block and the ground is 0.1
A semicircular section of roller coaster track (Radius=34m) is designed to be able to provide up to 140kN (1.4x10^5N) of support (upward normal force) for coasters without collapsing.
A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 813 Hz from the wall. What is the frequency of the car horn
A 1000 kg is lifted 1 meter. Find the potential energy with respect to the floor and If the car is lifted 2 m high, find the new value of potential energy with respect to the floor
If the voltage is increased to 20.0 V, then by what factor does the power emitted by the resistor increase?
A 12-kg block (M) is released from rest on a frictionless incline that makes an angle of 28 degrees. How far does the block move down the incline from its rest position to the stopping point
An object has a kinetic energy of 317 J and the momentum of magnitude 24.0 kg · m/s.
A drone flies 120 m at 27? North of East then turns and flies 680 m at 23? West of North, then turns again and flies 670 m due East. What is the magnitude of the drone’s displacement from its starting point?
A series RLC circuit has a 242 Hz resonant frequency, and is driven by an AC voltage source at 315 Hz. Find the maximum voltage of the source
after completing the experiment with the single slit you wish to determine the width of the slit. recall that the
Two tiny conducting spheres are identical and carry charges of -23.9C and +40.6C. They are separated by a distance of 3.63 cm. (a) what is the magnitude of the force that each sphere experiences?
A modern sculpture has a large horizontal spring, with a spring constant of 274 N/m, By how much has the spring stretched
q1. a pair of 12 rm mu f capacitors in a high-power laser are charged to 1.5 rm kv.what charge is stored in each
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