Answer:
A car engine has more power than a horse because a car engine does the same amount of work in time. Yasmin and Raj each had 10 boxes of equal weight to stack next to each other on the same shelf, at the same height and in the same arrangement. Yasmin completed the task in 2 minutes, while Raj took 3 minutes to stack his boxes. Raj applied less power than Yasmin because his stacking took more time to do the same amount of work.
Explanation:
To find food to find each other and to find their way
The amount of thermal energy needed is 626.6 J
Explanation:
When a certain amount of heat energy Q is supplied to a substance, the temperature of the substance increases according to the equation
where
m is the mass of the substance
is the specific heat capacity of the substance
is the change in temperature
In this problem,
m = 4.5 kg is the mass
is the specific heat capacity of the substance
is the change in temperature of the substance
Solving for Q,
(Note that the substance cannot be water, since specific heat capacity of water is 
Learn more about specific heat capacity:
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