One way to keep the contents of a garage from becoming too cold on a night when a severe subfreezing temperature is forecast is to put a tub of water in the garage. if the mass of the water is 148 kg and its initial temperature is 22.3°c, how much energy must the water transfer to its surroundings in order to freeze completely?

The energy is transferred to the surroundings from water in order to freeze completely.

Explanation:

Water will transfer to surrounding will come from cooling energy from 22.3°C  to 0°C and then freezing energy is

We know that,

\mathrm{C}_{\mathrm{W}}=4190 \mathrm{J} / \mathrm{kgk}

As per given question,

M = 148 kg

Substitute the values in the above formula,

The energy is transferred to the surroundings from water in order to freeze completely.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

+15-35=-20

going in opposite directions