The energy consumption rate of the oven is
3 kW = 3000 W = 3000 J/s.
The amount of energy supplied is
9 kJ = 9000 J
The time that the oven will run is
(9000 J)/(3000 J/s) = 3 s
Answer: 3 seconds
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.
<span>The answer is B, because a heterogeneous mixture consists of elements that have the same appearance and composition, If sand, salt, and iron filings are combined, they would look like one uniform element rather than three separate elements.</span>
A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave.
