What is the Gulf Stream?

What will be an ideal response?


Answer: Warm equatorial water that flows westward into and around the Gulf of Mexico then northward along the eastern coast of the United States. As it flows northward along the North American coast, the prevailing westerlies steer the warm current eastward toward Europe. It is then diverted southward toward the equator where it is picked up by the trade winds to move westward into the Gulf of Mexico and start the cycle once again

Physics & Space Science

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A very thin uniform rod, 2.40 m long and of weight 135 N, has a frictionless hinge at its lower end. It starts out vertically from rest and falls, pivoting about the hinge

Just as it has rotated through an angle of 55.0°, what is the downward acceleration of the end farthest from the hinge? A) 5.02 m/s2 B) 8.03 m/s2 C) 9.80 m/s2 D) 12.0 m/s2 E) 19.6 m/s2

Physics & Space Science

Radiative energy is

A) heat energy. B) energy from nuclear power plants. C) energy carried by light. D) energy of motion.

Physics & Space Science

For driving voltage , the current through the resistor is ? ? ?

A.

.

B.
.

C.
.

D.
.

E.

Physics & Space Science

Transmitting power at high voltage, e.g., 400,000 V, reduces the power loss for transmission lines. But such a voltage would destroy electrical devices in household use. How then can such 400,000 V electricity be used in a normal house?

a. The ground prongs on household plugs reduce the voltage to 120 V. b. Before reaching households, transformers are used to reduce the voltage appropriately. c. No matter the incoming voltage, a 120 V device only lets 120 V in. d. The 400,000 V is just theoretical; long distance transmission lines actually use 120 V.

Physics & Space Science