I) Friction depends

on the ...

of surface.

The first American to win the Nobel prize in 1907 was: Fizeau Roemer Michelson

What two elements existed before the first stars?

11 cupcakes and 95skittles he wants to put the same number of skittles on each cupcake how many skittles can he put on each one

A few weeks later, you attend a rock concert at which the band plays at 120dB. How many times more intense is the rock concert than the choir concert?

What data are needed to calculate the actual mechanical advantage of a machine? efficiency and force of friction input distance and output distance work input and work output input force and output force

A projectile is shot horizontally (x direction) from the edge of a vertical cliff 100 m above level ground. Its initial speed is 75 m/s. Neglecting air resistance.

9. What is the uncertainty of the measurement of a voltage measurement on the oscilloscope when the vertical scale is set to 2V / division, given that it uses an 8-bit D/A converter?

A 7 kilogram cat is resting on top of a bookshelf that is 3 meters high. What is the cat's gravitational potential energy relative to the floor?

What two factors determine the speed of sound

Is electric charge a property of just electricity or is charge a property of all atoms?