Mechanics | Relativity Answers

Help me solve this physics homework:
in sense we all have kinetic energy,even when we are standing still.the earth with a radius of 6.37*10 power 6 m,rotates about its axis once a day.ignoring the earths rotation about the sun,what is the K.E of a 50Kg man standing on the surface of the earth.

What id the equation for calculating the tension on a violin string (given length, frequency, and linear density)?

1.Explain how a muscle exerts force.

2. For each of the three of levers, explain the advantage gained by using this type of lever.

The Earth has a mass of 5.98X10^24 kg, and its& radius is 6.37X10^6 m. Using these values, calculate the acceleration due to gravity at the surface of the earth.

How do i do this question. A weightlifter lifts a 32 kg set of weights from ground level to position over the head. The vertical lift is 2.2 m. How much work does the weightlifter do

a Lady bug with a velocity of 10.0mm/s [W] crawls on a chair that is being pulled [50 N of W] at 40.mm/s. what is the velocity of the ladybug, relative to the ground?

A truck is traveling at 11.1 m/s down a hill when the brakes on all four wheels lock. The hill makes an angle of 15.00 with respect to the horizontal. The coefficient of kinetic friction between the tires and the road is 0.750. How far does the truck skid before coming to a stop?

when you are inside the bus or jeepney? what do you experience when the vehicle starts from rest, then what do you also experience when the vehicle is moving fast and its stop suddenly? explain this experience in terms of a law inertia

is moment of inertia of cart wheels is reponsible for its speed, explain

A wave has a wave speed of 243 m/s and a wavelength of 3.27 cm. Calculate (a) the frequency and (b) the period of the wave.