What is the formula for calculating the mass when i have the number of volume and density

Cobalt-60 can make fruit flies infertile. Justify the uses of above radioactive mentioned.

A cyclist turns a corner with a radius of 37 m at a speed of 22 m/s. What's the cyclist acceleration? If the cyclist and cycle have a combined mass of 90 kg, what is the force causing them to turn?

Does the medium in which a wave travels move along with the wave itself

List 3 different things a bus driver can do while driving to make the bus accelerate. This is for a physics class for 9th grade.

All endothermic reactions absorb heat and make the surroundings warm a: true b: false

Winston stands on the edge of a building's flat roof, 12 m above the ground, and throws a 147.0-g baseball straight down. the ball hits the ground at a speed of 18 m/s. what was the initial speed of the ball?

When is the zebra in motion when it is not moving

1) What happens when two negatively charged tape strips are placed near each other?

Claudia throws a baseball to her dog. Which free-body diagram shows the baseball when it's flying horizontally in midair? (Assume no air resistance.)

What causes an air conditioned to turn on