The map below shows major ocean currents in the North Atlantic and North Pacific Oceans. In general, currents flowing toward the equator bring cooler waters to some regions, while currents flowing away from the equator bring warmer waters to other regions. Based on the map, which of the following regions likely has warmer winters than it would without the effect of a nearby ocean current?

A.

all of these

B.

the central U. S.

C.

the U. S. West Coast

D.

the U. S. East Coast

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Match each scenario to the form of energy it represents

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?