A force of 8.00 newtons acts on a block across a horizontal frictionless surface for 12.0 seconds.
The block travels 4.00 meters. What is the change in kinetic energy during these 12.0
seconds?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.

Where do magnetic lines of force enter earth?