The diagram shows the field lines near the poles, X and Y, of two magnets. Based on the field lines, what are the poles of the magnets?

A. X: north Y: south

B. X: south Y: north

C. X: north Y: north

D. X: south Y: south

15. Do surface currents affect water temperature, air temperature, or both?

A balloon has a maximum capacity of 1700 m3. on a cool morning (temperature = 10°c, some hot-air balloonists start filling their balloon with air until it occupies three-fourths of the maximum possible volume.

Heat energy flowing up the handle of a spoon placed in boiling water is an example of which type of heat transfer.

Definition of heat in own words

What is the net force and acceleration of a ball of mass 0.750 kilograms that is subjected to forces of 11.00 newtons and 7.00 newtons from opposite directions?

How is a magnetic field generated?

When a bat uses echolocation to determine the distance to an insect, it sends out a sound wave and waits to see how long the sound takes to echo back. Suppose now that a bat hears its echo 0.06 LaTeX: ss after it emitted the sound.

An exhausted bicyclist pedals somewhat erratically when exercising on a static bicycle. The angular velocity of the wheels follows the equation? (t) = at? bsin (ct) fort?0, where t represents time (measured in seconds), a = 0.500 rad/s2, b = 0.

This boy uses a force to lift a heavy rock. (He is carrying it.) What can the boy do if he wants to lift the same rock more quickly? A. use greater upward force B. use greater downward force C. decrease the force of gravity D.

The difference in electronegativity values between H and O is 1.4. What type of bond will these elements form?