TRAPPIST-1e is a planet orbiting another star. This star is so far away from Earth that light takes almost 40 years to reach us from it. TRAPPIST-1e has a semi-major axis of 0.02817 AU, so its orbit is:

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Carbon 14 is a naturally occurring stable

Where do magnetic lines of force enter earth?