The planet neptune has a mass of 1.02 x 10^26 kg, and earth's mass is 5.97 x 10^24 kg. what is the gravitational force between the planets when they are 4.5 billion kilometers apart?

A: 2.0 x 10^15

B: 2.0 x 10^21

C: 3.0 x 10^25

D: 3.0 x 10^31

Every six seconds pendulum complete one cycle what are the period and frequency of this pendulum

What is a cognitive milestone of a baby?

Which statement best describes a transverse wave? A. Particles of the wave medium move in the opposite direction of the wave. B. Particles of the wave medium move perpendicular to the wave. C. Particles of the wave medium move parallel to the wave.

What do you do, when you get anger?

What would happen if you touched the knob of a positively charged electroscope with a negatively charged object

What is a 2d game. Give a refrence.

Two exactly similar wire of steel and copper are stretched by equal force. if the total elongation is 10cm. find how much each wire is elongated given young's modules for steel = 2*10^10 N/M^2 and Young's modules for copper 2*10^10N/M^2.

Which of the following is the FINAL step in a forecasting system? A. Validate and implement the results. B. Make the forecast. C. Select the forecast model (s). D. Gather the data needed to make the forecast.

Resistors in parallel together contain less resistance than resistors in series together. Create an analogy to explain this phenomena and post it here.

Unlike the idealized voltmeter, a real voltmeter has a resistance that is not infinitely large. part a a voltmeter with resistance rv is connected across the terminals of a battery of emf e and internal resistance r.