Which simple machines rely on changes in direction to make work easier?

Rebecca is learning to play cello and is highly motivated. She is confident that she can learn cello easily and with great ability because she already knows how to play violin.

A man cleaning his apartment pushes a vacuum cleaner with a force of magnitude 39.9 N. The force makes an angle of 24.7° with the horizontal floor. The vacuum cleaner is pushed 2.51 m to the right along the floor. Calculate the work done by the 39.

Samantha pulls a wagon with her dog in it. The mass of the wagon and the dog together is 45kg. The wagon accelerates at a 0.85m/s2. What force is Molly pulling the wagon with.

Why does the number of dwarf planets recognized by astronomers in the solar system sometimes increase?

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a many-electron system?

Calculate how much work you need to move a 280 N shed to a platform 5 m above. A 2,800 J B. 1,400 J* C. 56 J

Forces of attraction limit the motion of particles most in

What is the temperature of the center of the earth?

A certain string has a mass of 120 g and a length of 40 cm. Consider the quantity 3 = 120/40. 1. Give the name of the quantity if there is one. 2. What is the interpretation of the quantity in this context? 3.

Four fundemental forces from weakest to strongest