Who has a greater weight to mass ratio, a person weighing 400 n or a person weighing 600 n? select one:
a. the question can't be answered; not enough information is given.
b. neither; their ratios are the same.
c. the person weighing 400 n
d. the person weighing 600 n

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Arrange the images in order to show how lake-effect snow occurs.