Asnail slowly travels down the sidewalk at a pace of 4 cm/s. how long will it take the snail to reach a distance of 20 cm?

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron