What are the similarities and differences between the following three units, explain each unit. Your answers should address the following: What does the unit signify? What kind of a unit is it? If it is a derived unit, what does it stand for? How is it related to other units?(a) N-m(b) N(c) kg

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

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Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.