A mover loads a 100 kg box into the back of a moving truck by pushing it up a ramp. The ramp is 4.0 m long and the back of
the truck is 1.5 m high. The mechanical advantage of the ramp
is
(Round to the nearest tenth)

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2