A rocket-powered sled has a mass of 240 kg. The rocket motor has a thrust of
6,000 N. The coefficient of kinetic friction
with the snow is 0.150. What is the net
acceleration of the sled?
a = [?] m/s2

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?