Answer:
B. Technician B only
Explanation:
Technician A says that valve overlap is the number of crankshaft degrees that both valves are closed. Technician B says that valve overlap is the number of degrees that both valves are open. Who is right? A. Technician A only B. Technician B only C. Both technicians A and B D. Neither technician A nor B
Valve overlap is when both the intake and exhaust valves are open. This occurs towards the end of the exhaust stroke, the intake valves are opened just before all the exhaust gases are released, providing more time for the intake air to enter the engine. Valve overlap must be shorter for a petrol/gasoline engine because the engine is drawing in fuel as well as air through the intake. ...it is not so for a sport car
the inlet valve and exhaust valve are located at the head of the engine. fuel enters the engine through the intake valve.
Potential energy = mgh
So, energy gained
= mgh
= 70kg × (9.8m/s²) × 1000m
= 686000 kgm²/s²
= 686000 J
Answer:
"solar-powered photovoltaic (PVC) panels convert the suns rays into electricity by exciting electrons in silicon cells using the photons of light from the sun. This electricity can then be used to supply renewable energy to your home or business."
I hope this helps ^-^
Explanation:
Answer: An AU equals the distance between Earth and the Sun; a parsec
equals the angle between an object's apparent positions when viewed
from two different locations.
Explanation:
Light year is the distance light travels in one Earth year. 1 light year is equal to .
An astronomical unit (AU) is the average distance between the earth and the sun. An AU is approximately 150 million km.
A parsec is the distance at which one astronomical unit subtends an angle of one second of arc. 1 parsec is equal to 20600 AU.
W = fd Divide both sides by d
= f Switch the sides to make it easier to read
f =
w = fd Divide both sides by f
= d Switch the sides to make it easier to read
d =