Answer: Technician B
Explanation: A valve overlap occurs when both the exhaust valve and the inlet valve are open at the same time.
It is also seen as the number of degrees at which both the inlet and exhaust valves are open.
Valve overlap helps in boosting the efficiency of the engine by taking advantage of the expelled pressure from the exhaust.
It is expressed mathematically in degrees of shaft rotation.
So, Technician B is very correct.
Answer:the negative particles are electrons which are smaller and weigh less than the proton
Explanation:
Answer:
the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
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Explanation:
Answer:
Time, t = 3.2 ms
Explanation:
It is given that,
Mass of basketball, m = 0.622 kg
Initial velocity, u = 4.23 m/s
Final velocity, v = 3.85 m/s
Average force acting on the ball, F = 72.9 N
We need to find the time of contact of the ball with the floor. Let t is the time of contact. So,

So, the ball is in contact with the floor for 3.2 ms.
Explanation:
Relation between electric field and charge density is as follows.
E = 
where,
= charge density
= permittivity of free space = 
So,
= 0
or, 
Now, formula to calculate the potential difference of two conductors is as follows.

It is given that,
d = 6.0 mm = 

Hence, we will calculate the magnitude of the electric potential differences between the two conductors as follows.

=
= 0.0271 volts
thus, we can conclude that value of the magnitude of the electric potential differences between the two conductors is 0.0271 volts.