Power is the time rate of change of work.

a. True

b. False

Making a diagram show the forces acting on the coasting bike rider traveling 25 km/h on a flat Roadway

The primary reason professional observatories are built on the highest mountaintops is to (a) get away from city lights; (b) be above the rain clouds; (c) reduce atmospheric blurring; (d) improve chromatic aberration.

Which of these processes in the water cycle occur at a very high rate, to cause a hurricane? runoff and infiltration runoff and precipitation transpiration and evaporation evaporation and condensation

The specific heat of substance X is 200 J/g*C, how much heat is required to change the temperature of 2.0 grams of substance X from 35 degrees Celsius to 55 degrees Celsius?

What are your physics midterm tips?

You are jumping on a trampoline and it occurs to you that energy is being transferred as you bounce. ( ... sounds like your usual thoughts, doesn't it?) You realize that sometimes you do work on the trampoline and sometimes it does work on you.

What is the weight of atmosphere on Earth?

The noble gases are the least what of any elements on the periodic table

Why is friction between moving parts of machines undesirable?

What holds down earths atmosphere in its place?