A cardinal (Richmondena cardinalis) of mass 4.00×10−2 kg and a baseball of mass 0.146 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum? View Available Hint(s)

The ratio of the momentum of the cardinal to baseball is 0.523.

The given parameters;

The kinetic energy of the cardinal is calculated as;

The kinetic energy of the baseball is calculated as

The kinetic energy for both objects are equal;

The momentum of cardinal is calculated as;

The momentum of the baseball is calculated as;

The ratio of the momentum of the cardinal to baseball is calculated as follows;

Thus, the ratio of the momentum of the cardinal to baseball is 0.523.

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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

conservation of mass

mass before something happens = mass afterwards