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A see-saw board is supported at its center by a fulcrum A 25 kg person sits 80 cm from center. A 15 kg person is sitting on the other side at the correct distance from the center so boar is horizontal and in static equilibrium Ignore weight of board
How far from center is the 15 kg person.
How much force does the fulcrum exert on board.
Suppose board is 2.4 m long and two people 25 kg and 15 kg are sitting on opposite ends of board. How far from 25 kg person should fulcrum be placed so that board could balance horizontally again. Ignore weight of board.
One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. when the small-mass object is the one moving initially
The driver of a 1250 kg car, initially traveling at 10.1 m/s, applies the brakes, bringing the car to rest in a distance of 25.0 m
What will the maximum kinetic energy of the photoelectrons ejected from magnesium (for which work function (line through 0) 0=3.7 eV) when irradiated by ultraviolet light of frequency 1.5 X 10^15 sec^-1
You are at a rock concert and find that when you stand 15 m from a speaker, the intensity is so high that it hurts your ears. how far from the speaker should you stand
You want to create an electric field at location. where would you place an electron to produce this filed at the origin
A charge of -3.80 nC and a charge of -6.00 nC are separated by a distance of 60.0 cm. Find out the position at which a third charge of +7.30 nC could be placed so that the net electrostatic force on it is zero.
Hurricane winds of 95 m/h are blowing over the flat roof of a well sealed house. What is the difference in air pressure between the inside and outside of the house
solve 14 and 15 and 11-13- 10- 9- 2 -6- step by step without jumping and explain more because i wanna
A solenoid is constructed with a total of 1500 turns wound around a length of 25 cm. A constant current of 1.7 A flows through the solenoid. Calculate the magnetic force on the proton
The average lifetime of a muon is about 2 µs. Estimate the minimum uncertainty in the rest energy of a muon
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. A second small object, with a charge of4.2 uC, is placed 1.2m vertically below the first charge. Find a) the electric field at the position of the upper charge..
A conical pendulum is formed by attaching a 0.90kg ball to a 1.0m -long string, What is the ball's angular velocity, in rpm
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