How many atoms of hydrogen are there in one molecule of ammonium phosphate, if the chemical formula is (NH4) 3PO4?

A. 3

B. 4

C. 7

D. 12

The angular velocity in rad/s if the minute hand of a watch is:

Wildlife biologists are attempting to monitor the population size of the insect pest known as the gypsy moth (Lymantria dispar) during the summer months.

If you drop a ball off a cliff, it starts out a 0 m/s. After 1 s, it will be traveling at about 10 m/s. If air resistance is removed, what will happen in 2 s? And how do you know this? A. The ball will still be moving at 10 m/s. B.

How do astronomers set about looking for extrasolar planets?

3. Suppose that a block is pulled 16 meters across a floor. What amount of work is done if the force used to drag the block is 22 N? A. 3303 B. 200 C. 3523 D. 2203

Which is the correct equation for calculating the kinetic energy of an object? COM 1 1 KE = mgh KE = mu? KE = at KE = 492 O ) Intro ✓ Done DO

What is a wave? In other words, what is the physical science term for a wave?

What occurs when solar radiation bounces off a surface? texturization absorption reflection energization

Enise is riding her bike and falls to the ground. During the collision, she hits both grass and cement. Which best explains why Denise had fewer injuries to the area of her body that hit the grass?

Compare the inner core and the outer core?