A football coach starts at the 10-yard line (A) and walks to the 40-yard line (B). He turns around and walks to the 0-yard line (C). He turns around again and walks back to the 50-yard line (D). He turns around once more and walks back to the 25-yard line (E), thus completing his
10 minutes of pacing.
West
East
A
B
GA
D+
-10
0
30
20
30
40
50
Position (yds)
The coach's average speed is
a. 1.5 y/min, East b. 1.5 y/min, West c. 1.5 y/min
6.0 y/min, West i. 6.0 y/min j. 8.5 y/min, East
West o. 14.5 y/min
p. none of these
d. 5.0 ylmin, East
k. 8.5 y/min, West
e. 5.0 y/min, West
1. 8.5 y/min
f. 5.0 y/min
g. 6.0 y/min, East h.
m. 14.5 y/min, East n. 14.5 yd/min,

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Which term best describes the phrase “something that happens”?

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit