Aman wishes to travel due north in order to cross a river 5 km wide flowing due east at 3 km/hr. if he can row at 10 km/hr in still water find
(a) the direction in which he must head his boat in order to get to his destination directly opposite his starting point
(b) the resultant velocity of the boat in the river
(c) the time taken to cross
(d) how far from his destination he would land if he ignorantly steers northward

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.

What is the difference between mass density and weight density?