If the Earth were to spin twice as fast as it does now, how many hours would be in one day (one complete spin)?

if the eart were to spin twice as fast, gravity could not hold us to it, causing us to be slung into space resulting in the death of every life form.

Explanation:

Explanation:

At 100 mph faster, the equator would start to drown. ... If we double the speed at the equator, so that Earth spins 1000 miles faster, "it would clearly be a disaster," says Fraczek. The centrifugal force would pull hundreds of feet of water toward the Earth's waistline. There would only be 12 hours.

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

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation: