What is the number of protons in an atom of sodium? A) 11 B) 11.9897 C) 12 D) 23

While trying out for the position of pitcher on your high school baseball team, you throw a fastball at 87.6 mi/h toward home plate, which is 18.4 m away.

The first few steps in deriving the quadratic formula are shown. Which best explains why is not added to the left side of the equation in the last step shown in the table?

What is an advantage of using wind for producing electricity instead of coal? A lot of energy is produced by wind compared to coal. Obtaining wind does not harm the environment, but obtaining coal does. Using wind is less expensive than using coal.

In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.20 3 106 m/s. Find (a) the force acting on the electron as it revolves in a circular orbit of radius 0.

What is the mas in grams of 1m cubed of water

The host says during the video that her interests during middle school were?

Two hockey pucks with mass 0.1 kg slide across the ice and collide. Before the collision, puck 1 is going 13 m/s to the east and puck 2 is going 18 m/s to the west. After the collision, puck 1 is going 18 m/s to the west.

A snake accelerates from 2 m/s to 10 m/s in 4 seconds. What is the snakes acceleration? m/s2

What is the difference between speed and velocity

If an astronaut moved away from the earth towards the moon, how would the gravitational forces between the earth and the astronaut change? How would the gravitational forces between the moon and the astronaut change?