Two airplanes leave an airport at the same time. the velocity of the first plane is 690 m/h at a heading of 67.5° . the velocity of the second is 620 m/h at a heading of 182°. how far apart are they after 3.5 h?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?