I beleive she isnt doing any work due to holding the box motionless, you must be exerting a force in the direction of the box motion. If she is just standing there holding the box their isn't no work becuase no distance has been covered. work = force = distance.
It is the distance between two corresponding points of back-to-back cycles of a wave
Answer:
a) 42.9 m/s
b) 41.6m
Explanation:
a)
solving the eq we get
v=42.9 m/s
b) <em>here,</em>
when put in y(t) it gives y=44.6 m so result is
h=44.6-3= 41.6m
Answer:
Explanation: The moon of the Earth is much lighter in mass than the planet itself. In addition to being smaller than Earth, the Moon is also only approximately 60% as dense. A human weighs less on the Moon because there is less gravitational attraction there than there is on Earth.