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A math instructor's dead body (m= 80 kg ) is dragged across the ground with 30o and 500 N force by an angry student. The coefficient of friction among the lifeless body and the ground is µk = 0.60
1. What is the acceleration of the dead body?
2. Draw a picture forces acting on the dead body.
3. What size force does the dead body exert on the student?
a 30 kg child stands on the edge of a stationary merry-go-round of radius 2.0 m. What is the angular speed of the merry-go-round just after the ball is caught
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A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 55.1 J, What is the kinetic energy of the system at the equilibrium point
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question prove that the formula for the sum of the measures of the interior angles of a n-gon is 180n-2 or 180-360
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Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats.
A hedgehog pushes a rock of 1.9 kg up a ramp, which is tilted at 19.5 degrees to horizontal, How much work is done by friction
power lines have a limit on the maximum size of the electric fieldthey produce. in most states, a maximum of 5kN/C at about 20 m fromthe wires is allowed. determine how much charge per unit length is onthe wire
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