2 years ago

What is the object’s acceleration?

Physics

1 answer:

Nat2105 [25]2 years ago

5 0

Answer:

the acceleration of object is 3m/1s

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olganol [36]

Answer:

Explanation:

F = ma and

$a=\frac{v}{t}$

We have F, we have m, but in order to solve for v, we need a.

30.0 = 3.00a so

a = 10.0 m/s/s. Plug that in for a in the second equation and solve for v:

$10.0=\frac{v}{3.00}$ so

v = 10.0(3.00) so

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A Carnot heat engine has an efficiency of 0.400. If it operates between a deep lake with a constant temperature of 298.0k and a

tatuchka [14]

Answer:

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Explanation:

The efficiency of a Carnot engine is given by the equation:

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For the engine in the problem, we know that

$\eta = 0.400$ is the efficiency

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Solving for $T_H$ , we find:

$\frac{T_C}{T_H}=1-\eta\\T_H = \frac{T_C}{1-\eta} =\frac{298.0}{1-0.400}=496.7 K$

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