Two tables each have a mass of 29 kg. If the gravitational force between them is 4.24 x 10-10 N, how far apart are they? G = 6.67 * 10-11 N.(m/kg)?
O A. 12.01 m
O B. 11.5 m
O C. 9.55 m
O D. 10.23

B, 11.5m

Explanation:

m=29kg

Fg=4.24x10^-10N

Fg= Gm1m2/r^2       Find r in the equation for how far they are apart

4.24x10^-10=6.67x10^-11(29)(29)/r^2

4.24x10^-10 r^2=6.67x10^-11(29)(29)

r^2=132.29

r=11.5m

Therefore the answer is B

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: