Answer:
The temperature of the brakes is 29.38°C.
Explanation:
Given that,
Mass of car = 750 kg
Speed = 23 m/s
Mass of iron = 15 kg
We need to calculate the kinetic energy of car
Using formula of kinetic energy
We need to calculate the temperature of the brakes
Using formula of energy
Put the value into the formula
Hence, The temperature of the brakes is 29.38°C.
Answer:
Hertz is the answer for this question
The sound is basically just frequency. Because the sound becomes higher in pitch.
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Answer:
Impulse = 1000 Ns
Explanation:
Given the following data;
Force of collision = 1000 kg•m/s.
Time = 1 seconds
To find the impulse;
Mathematically, the impulse experienced by an object or body is given by the formula;
Impulse = force * time
Substituting into the formula, we have;
Impulse = 1000 * 1
Impulse = 1000 Ns
