The density of ice is 0.93 g/cm3. what is the volume, in cm3, of a block of ice whose mass is 5.00 kg? remember to select an ans
1 answer:
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13200N
Explanation:
Given parameters:
Mass = 1100kg
Velocity = 24m/s
time = 2s
unknown:
Braking force = ?
Solution:
The braking force is the force needed to stop the car from moving.
Force = ma =
m is the mass of the car
v is the velocity
t is the time taken
Force = = 13200N
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I assume here that the engine operates following a Carnot cycle, which achieves the maximum possible efficiency.
Under this assumption, the efficiency of the engine (so, the efficiency of the Carnot cycle) is given by
where
is the cold temperature
is the hot temperature
For the engine in our problem, the cold temperature is 313 K while the hot temperature is 425 K, so the effiency of the engine is
Under this assumption, the efficiency of the engine (so, the efficiency of the Carnot cycle) is given by
where
For the engine in our problem, the cold temperature is 313 K while the hot temperature is 425 K, so the effiency of the engine is