A bow is drawn so that it has 40 J of potential energy. If we ignore air resistance then fired, the arrow will ideally have a kinetic energy of 1.more than 40 J
2.Less than 40 J
3.40 J

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

What is the length x of the side of the triangle below? (hint: use the cosine function)

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?