Who first proved that the sun is not at or even close to the center of the milky way galaxy?

How does the resistance change as you add bulbs to a series circuit?

The earth has a mass ME = 5.98 · 1024 kg and the moon has a mass MM = 7.36 · 1022 kg. The distance from the center of the earth to the center of the moon is r = 3.82 · 105 km. What is the gravitational force between the earth and moon?

Flyby missions are focused on collecting soil samples from other planets.

A person is standing on a balance with both feet. The reading of the balance is 200N. If he lifts a foot, what will the balance reading be?

How much effort force would be needed to roll a barrel with a resistance force of 100N up an inclined plane with a height of 2m and an inclined plane of 8m?

Do you mind if I use this example for my assignment?

A squirrel runs along an overhead telephone wire that stretches from the top of one pole to the next. It is initially at position xi=3.37 mxi=3.37 m, as measured from the center of the wire segment. It then undergoes a displacement of Δx=-6.

Imagine a 10 kg block moving with a velocity of 20 m/s to the left. calculate the kinetic energy of this block

Which do you think is the bigger problem among college students-the continued abuse of illegal drugs or the rising abuse of prescription and over-the-counter medications?

A man stands still on a moving walkway that is going at a speed of 0.4 m/s to the east. What is the velocity of the man according to a stationary observer?