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A uniform diving board is 5.00 meters in length and weighs 100 Newtons. It is supported by two posts separated by 1.50m. What are the force exerted on the posts when a 90.0 kilogram diver stands at the end of the diving board?
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
A rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what direction with respect to the billboard would a space traveler have to pass for the billboard to appear square?
A speaker at the front of a room and an identical speaker atthe rear of the room are being driven at 421 Hz by the same sound source. How many beats does the student hear per second
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1450 W/m2. Find the rms value of the magnetic field.
A bowling ball, which can be treated as a solid sphere with a diameter of 21.6 cm and a weight of 33 kg, The kinetic energy of the bowling ball is
A 480g , 8.00-cm-diameter solid cylinder rolls across the floor at 1.50m/s. What is the can's kinetic energy
The rod is held in the horizontal position shown and then released. Compute the initial acceleration of the mass attached to l1. Assume up is positive and down is negative
two stones are released from rest at a certain height one after the other.a. will the difference between their speeds
A paratrooper pilot fell 360 m after jumping without his parachute opening. He landed in a snow bank, creating a crater 1.50 m deep, but survived with only minor injuries. Assume the pilot's mass was 80 kg and his terminal velocity was 50 m/s.
The length of the road up the hill is 347 m. Illustrate what should be the magnitude of F, so that the net work done by all the forces acting on the car is 182 kJ?
you send a beam of light from a material with index of refraction 1.23 into an unkown material. in order to help
How to find out speed of the block
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