The photosphere is the innermost layer of the Sun, and it's also the

A. nickname for the outer atmosphere of Earth.

B. visible surface of the Sun.

C. atmospheric pressure of Jupiter.

D. invisible surface of the Sun.

Michaela is babysitting little Tommy Turner who is known to be terror. Michaela answered the phone when Tommy's parents called to check him leaving Timmy unattended for three minutes.

Which describes a characteristic of metallic bonds? Metal ions have the highest ability to attract electrons. The outer energy levels of metals do not need to be filled. Valence electrons are free to move among atoms.

You throw an object straight up at 15m/s. how fast is it going when it gets back to the height from which you threw it?

Whats the measure of how much energy a sound wave carries, the loudness of a sound?

A racquetball strikes a wall with a speed of 30 m/s and rebounds with a speed of 26 m/s. The collision takes 20 ms. What is the average acceleration of the ball during collision? a. zero b. 1500 m/s2 c. 1300 m/s2 d. 200 m/s2 e. 2800 m/s2

In an experiment, all participants receive a treatment but those in the control group recieves a false treatments

When the volume increased, what happened to the density?

8. Chemical weathering occurs more rapidly in what kind of climates? A. Desertlike B. Cold with high snowfall amounts C. Cool and dry D. Warm with abundant rainfall

Recoil is noticeable if we throw a heavy ball while standing on a skateboard. If instead we go through the throwing motion but hold onto the ball, without friction effects our net recoil will be A) zero. B) the same as before.

If an electromagnet is used to pick up nails and other metal objects, what happens when the current is turned off?