While exploring an ancient Mayan tomb, you discover that the walls begin to move and are closing in on you. By exerting 400 N of force, you are able to keep a wall from coming closer. The work you are doing on the wall is .a. 400 J.
b. 3920 J.
c .unknown, because the mass of the wall is not given.
d. zero, because the wall is not moving.

The necleus of an atom is made up of what subatomic particles?

Atomic nuclei of almost all elements consist of

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)