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Three forces act on a moving object. One force has a magnitude of 86.7 N and is directed due north. Another has a magnitude of 59.9 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object continues to move with a constant velocity? Express your answer as a positive angle south of east.
A standing wave pattern on a string is described
A 58 ice cube can slide without friction up and down a 28 slope. The ice cube is pressed against a spring at the bottom of the slope, When the ice cube is released
Light hits the surface of water at an incident angle of35° with respect to the normal line. What is the angle between the reflected ray and the refracted ray?
The vertical deflecting plates of a typical classroom are a pair of parallel square metal plates carrying equal but opposite charges. how fast is it moving when it reaches the postive plate
Two horses are pulling a barge with mass 1.87 103 kg along a canal, Find the initial acceleration of the barge
An electric motor contains a 250-turn circular coil 5.8cm in diameter. If it is to develop a maximum torque of 1.6Nm at a current of 4.0 A, what should be the magnetic field strength
A 1000 kg cart is rolling to the right at 1.50 m/s . A 50.0 kg man is standing on the right end of the cart. What is the speed of the cart
An astronaut weighs 152 N on the surface of the moon. If the same astronaut orbits the moon at an altitude equal to the moons radius, what gravitational force does the moon exert on him at this altitude?
a car wheel with a diameter of 30 inches has a linear velocity of 30 mph. What is the angular displacement of the car whell during the 10 seconds of acceleration
what is its kinetic energy at the end of the interval. How high a tree would a 80 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount.
A ten pound car wheel has a moment of inertia of 0.52 kg m2. How much torque is required to stop the wheel in 43.21 s?
A 4.30 capacitor that is initially uncharged is connected in series with a 7.90 resistor and an emf source with 225 negligible internal resistance. what is the voltage drop across the capacitor
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