The velocity of a 3.00 kg parti- cle is given by : v = (8.00tiˆ + 3.00t2jˆ) m/s, with time t in seconds. at the instant the net force on the parti- cle has a magnitude of 35.0 n, what are the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's direction of travel?

50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.

Hydrogen and helium are both members of?

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.