Why are temperatures more moderare around the fall and spring equinoxes

Theoretically speaking when analyzing the frequency spectrum of dolphin vocalizations, which may go up to 150 khz, what is the lowest sampling frequency necessary?

How do heavy airplanes fly?

What is implicit memory?

The cells of some organisms contain both chloroplast and mitochondria, what would happen if these cells would move from a light environment to a dark one?

How can the creation of ice result in physical weathering?

How can we describe an atom

What is the volume of a gold nugget that weight 2.20kg. the density of gold is 19g/cm^3 ... ?

Explain how newton's first law of motion can be considered to be a consequence of newton's second law.

Propose a hypothesis for how the position of the ball will affect the amount of its gravitational pull energy

A water-skier is pulled behind a boat by a rope that is at an angle of 13° and has a tension of 490 N. The water-skier has a mass of 49 kg. Draw a free-body diagram showing the forces acting on the skier. (She is being pulled to the right.)