16 Define simple harmonic motion. Write down the expressions for the velocity and
acceleration of such motion at the different
positions along its path. A body vibrating
with simple harmonic motion has a frequency
of 4 Hz and an amplitude of 0.15 m. Calculate
a. the maximum values of the acceleration
and velocity
b. the acceleration and velocity at a point
0.09 from the equilibrium position of motion.
17 A coil spring is stretched 9 cm when a mass of
18 kg is suspended from it. Calculate the force
constant of the spring. A body suspended from
the coil when set in vibration is observed to
oscillate vertically with a frequency of 1.5 Hz
Calculate the mass of the body.​

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

the results is a decrease in air temperature with an increase of altitude.

explanation:

change tension

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.