A ball is rolling down a hill at + 1.0 m/s, The ball is uniformly accelerating at

+4.9 m/s?, What will the ball's velocity be 4.0 s later?

+8.9 x 100° m/s

+2.0 x 10^1 m/s

+2.1 x 10^1 m/s

-1.9 x 10^1 m/s

Which effect is created when two sound waves that are close in pitch interact? O A. Echoes O B. Loudness C. Beats O D. Intensity

When you open a switch in an electric circuit you are creating a gap and stopping the flow of electrons. O True O False

Technician A says that the cylinders should be bored and/or honed to match the size of the pistons to be used. Technician B says that bolt holes should be chamfered and cleaned with a thread chaser before assembly.

If 20 beats are produced within a single second, which of the following frequencies could possibly be held by two sound waves traveling through a medium along a common path at the same time A. 38 Hz and 63 Hz B. 18 Hz and 26 Hz C. 47 Hz and 55 Hz D.

How many years would take to terraform for Mars

Person with a mass of50 kg jumps up from the earth with an acceleration of 20 newtons. what is his acceleration?

The electron are accelrated to a speed of 2.40*10^7 in 1.8*10^-9, the force experinced by an electron?

You are given two positively charged particles, of equal magnitude, separated by a distance, "d". What will happen to the force field between the two particles when "d" is doubled?

Was ruthersfords model of an atom incorrect or incomplete

Which sphere is NOT a part of the cycling of oxygen through Earths systems?