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A uniform diving board, of length 5.21 m and mass 50.4 kg, is supported at two points; one support is located L1 = 3.32 m from the end of the board and the second is at 4.89 m from the end. As shown in the figure below, L2 = 1.57 m. What is the force acting on the board due to the left support when a diver of mass 62.9 kg stands at the end of the board over the water? Assume that these forces are vertical.
What is the force acting on the board due to the right support when a diver of mass 62.9 kg stands at the end of the board over the water?
A race car rounds a curve at 53 m/s. The radius of the curve is 450 m, and the car's mass is 620 kg. What is the centripetal force acting on the car
When an 82.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2 x 10^3 J. By how much does the potential energy of a 17 kg child increase when the child climbs a normal sta..
Block A (m = 1.20 kg), originally at rest, is pushed with a net horizontal force of 7.86 N for 5.34 m as it slides across a horizontal, What is its impact speed
A nonconducting disk of radius a lies in the z = 0 plane with its center at the origin. The disk is uniformly charged and has a total charge Q. Find Ez on the z axis at the following positions.
Two compact sources of sound oscillate in phase with a frequency of 90 Hz where the speed of sound is 340 m/s. What is the amplitude of the resultant wave at that point
The resultant displacement has a magnitude of 170 cm and is directed at an angle of 65.0° to the positive x axis. Find out the magnitude and direction of the second displacement.
A positive charge Q1 = 3.00 µC is in the origin and a negative charge Q2 = -5.00 µC is at point x = 11m. Find the position of point P between the charges, where the electric potential equals zero.
What is the tension in the vine if Jill, whose mass is 59kg , is moving at 2.5m/s when the vine is vertical
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. What is the magnitude of the tension in the rope
A standard deck of cards contains 52 different cards. A poker hand consists of five cards, chose randomly. How many different poker hands are there
A car is coasting at 20 meters/sec at the top of a 100 meter high hill. The car rolls down the hill. How fast fast is the car traveling when it reaches the bottom
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated with the radius of the atom, what is the kinetic energy of this orbital electron
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