The thermal energy keeps these two changing their temperature over time.
The surrounding temperature (environment) clearly effects the cold water AND the boiling water.
Eventually, both would reach an equilibrium in temperature. <span />
We know, Power = Energy / time
Here, P = 750 Watt
t = 60 sec
Substitute their values,
750 = E / 60
E = 750 * 60
E = 45,000 J
In short, Your Answer would be 45,000 Joules
Hope this helps!
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Answer:
it A i think
hope that helps if not i can change it
Explanation:
Answer:
4.18
Explanation:
Givens
The car's initial velocity
= 0 and covering a distance Δx = 1/4 mi = 402.336 m in a time interval t = 4.43 s.
Knowns
We know that the maximum static friction force is given by:
μ_s*n (1)
Where μ_s is the coefficient of static friction and n is the normal force.
Calculations
(a) First, we calculate the acceleration needed to achieve this goal by substituting the given values into a proper kinematic equation as follows:
Δx=
a=41 m/s
This is the acceleration provided by the engine. Applying Newton's second law on the car, so in equilibrium, when the car is about to move, we find that:

Substituting (3) into (1), we get:
μ_s*m*g
Equating this equation with (4), we get:
ma= μ_s*m*g
μ_s=a/g
=4.18