How many protons does this atom have?

How many neutrons does this atom have?

How many electrons does this atom have?

If you were to apply a force of 15N to a medicine ball with a mass of 5kg, what would its acceleration be

How can i tell one element from another one?

A ball is thrown straight down with a speed of Va2.00 from a building 40.00 meters high. How much S time passes before the ball reaches the ground? a.) - 3.07s b.) - 2.46 s c.) = 2.66s d.) = 9.89s e.) None of the above.

The weight of an object above Earth varies inversely as the square of its distance from the center of Earth.

In the photoelectric effect, it is found that incident photons with energy 5.00ev will produce electrons with a maximum kinetic energy 3.00ev. What is the threshold frequency of this material?

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2

What does a fern ultimately depend on as an energy source?

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.