A soccer player kicks a ball, changing its momentum by 11\, \dfrac {\text{kg}\cdot \text m}{\text s}11 s kg⋅m 11, start fraction, start text, k, g, end text, dot, start text, m, end text, divided by, start text, s, end text, end fraction. The net force on the ball is 910\,\text N910N910, start text, N, end text.

0.012  seconds

Explanation:

The time at which the soccer player maintain contact with the ball is as follows:

Given that

Change in momentum = 11 kg.m.s^-1

The Net force applied = F = 910 N

Now the following formulas should be applied:

For acceleration:

For momentum

Now

Put  the values to the above formula

= 11 ÷ 910

= 0.012 seconds

heats surface water up

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is