The students at Alberta Colony School use a pencil sharpener that is attached to the counter. To use the sharpener they turn the crank with a force of 7.5 N. This causes the blades to turn very quickly and with a force of 0.5 N. what is the effort force?

what is the load force?

calculate the mechanical advantage!

Write the correct abbreviation for each metric unit

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

Which of the following conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space? the cloud is extremely hot. the cloud is visible primarily because it reflects light from nearby stars. the cloud is cool and lies between you and a hot star. the cloud is cool and very dense, so that you cannot see any objects that lie behind it.