1. Coulomb's Law describes a force that can both attract and repel. In the cases below, which way would the electric force act? Circle ATTRACT, REPEL, or NEITHER to indicate your
a.
42 = -1.10€
42 = 7.6x102C
b
4 = 4.2x10°C
9. = 3mc
9, = -8x10-37C
4 = 4n
ATTRACT | REPEL I NEITHER
ATTRACT / REPEL / NEITHER
ATTRACT 1 REPEL / NEITHER
ATTRACT / REPEL I NEITHER
ATTRACT | REPEL I NEITHER
C.
92 = 7.2C
d.
92 = -40%
92
= 6.7x10-15C
e.
9 = OC

If a textbook weighs 37.2 n on venus, and the book has a mass of 4.4 kg, what is the strength of gravity on venus? 8.9 m/s28.9 m/si don't have enough information,9.8 m/s2

1point) a skydiver weighing 130 lb (including equipment) falls vertically downward from an altitude of 14,000 ft and opens the parachute after 20 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.85|v|0.85|v| when the parachute is closed and is of magnitude 17|v|17|v| when the parachute is open, where the velocity vv is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. find the speed of the skydiver when the parachute opens. speed is 150.6121788 ft/s find the skydiver's height when the parachute opens. height is 2338.98591 ft find the limiting velocity vlvl after the parachute opens. (think about whether this should be positive or negative.) vl=vl= 7.647 ft/s

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig