Aparticle moves along line segments from the origin to the points (1,0,0), (1,5,1), (0,5,1), and back to the origin under the influence of the force field below. find the work done. f(x, y,z) = z^2 i + 2xy j + 2y^2 k.

Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong chain

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?