A gold ball has a mass of 45g. In a speed test, a golf ball was driven from rest to a velocity of 90m/s. a) If the time taken for the golf ball to reach this velocity was 0.0005 seconds. What acceleration was this?

b) What forces was applied to the golf ball?

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?