Piston<span> is the part in the combustion engine which moves up and down. Piston is connected in connecting rod which helps to move it.</span>
Spark plugs are used to produce spark.
<span>So the </span>answer is B. Piston
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Answer:
m = 20[kg]
Explanation:
This problem can be solved, using kinematic equations and then applying Newton's second law. First we must find the acceleration and then replace it in the equation of Newton's second law.
Initial data:
Vo = initial velocity = 0 [m/s]
t = 3[s]
T- F = -m*a
T - m*g = m*a
We can assume a value for tension T equal to 196 [N].
Note: For this problem it is important to assume a tension value, otherwise, it is impossible to determine the value of mass m, in Newton's second law equation.
In rooms where there are multiple lights, a parallel circuit is better.
In a series circuit, if one light broke, all of the lights would turn off, as the circuit would be broken.
However, in parallel, if one bulb broke, the circuit could still be complete through the other bulbs, so they will stay on.
Answer:
A 50 kg ball traveling at 20 m/s would be moving at double the speed. So it would have (2)² = 4 times as much kinetic energy. == A 50 kg ball traveling at 5 m/s would be moving at 1/2 the speed.