Một vật được thả rơi từ một khí cầu đang bay ở độ cao 300 m Hỏi sau bao lâu vật rơi tới mặt đất nếu khí cầu đang bay theo phương ngang với vận tốc 5m/s

Asher cycles 12 miles in 16 hours. what is his speed?

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.

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.