A room inside a recording studio is lined with soft foam in order to absorb the energy of sound waves produced inside the room. How will sound waves
interact with the foam?
A. The foam will take up some of the waves' energy, decreasing their
amplitude.
OB. The foam will cause constructive interference, increasing the
waves' amplitude.
O C. The foam will reflect the waves, causing an echo.
D. The foam will refract the waves, causing their frequency to
change.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

lol

explanation:

i think it's 35 meters