Answer:
65.2 %
Explanation:
Let Q1 = Heat absorbed by the system
Q2 = Heat released by the system
e= (1 - (Q2/Q1)) x 100
e= (1 - (750/2150)) x 100
e= (1 - 0.348) x 100
e= 0.652 x 100
e= 65.2 %
It is c.......ik bc i just got it right on platoweb
The acceleration of the race car is 6 m/s²
The given parameters;
initial velocity of the race car, u = 6 m/s
final velocity of the race car, v = 36 m/s
time of motion, t = 5 s
Acceleration is defined as the change in velocity per change in time of motion.
The acceleration of the race car is calculated as follows;

Thus, the acceleration of the race car is 6 m/s²
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