A skater increases her speed uniformly from 2.0 meters per second to 7.0 meters per second over a distance of 12 meters. the magnitude of her acceleration as she travels this 12 meters is

which of the laws of motion states to every action there is an equal but opposite reaction letter a Newton's first law see Newton's third law Newton's second law or the law of conversation of momentum

A 4kg mass traveling eastwards at 4m. s per second collides with a 3kg mass traveling westward as 8m. s per second ... calculate the total momentum of mass before they colide

What must a system owner do, once the threshold leak rate has been exceeded on any low-pressure system using an ozone-depleting refiigerant?

Metals are what at room temperature with the exception to Mercury and Bromine

1. What is the atomic number of an atom? Why is this number important? |

A microwave oven operating at 120 volts is used to heat a sandwich if the oven draws 12.5 amperes of current for 45 seconds what is the power dissipated by the oven?

Which of the transformers are step-up transformers? Which of the transformers are step-down transformers?

1 A plane moving at 30m/s drops a load 200m down to the ground. How long did it take to hit the ground.

Can a body be in equilibrium if it is in motion? Explain

What is the average speed in kilometers per second of the earth around the sun?