Answer:
gravity
Explanation:
That would make the most sense from what I know
Answer:
The amount of work we could expect to get out of the system per second = 28,000J/s
Explanation:
Given the power supplied to the system as 28kW;
Energy = power / time
At very best, the amount of work we could expect to get out of the system per second = 28,000 W / 1 second = 28,000J/s
Therefore, for a a furnace which supplies 28kW of thermal power at 300C to an engine and exhausts waste energy at 20C.
At the very best, the amount of work we could expect to get out of the system per second = 28,000J/s
Answer:
The answer is A .
Explanation:
Ore is a rock that requires mining .
Without a change in pressure
V/T = V/T
Before change = after change - expansion
x = volume at m3
(0.5)/20 = x/45
.025 = x/45
.025 * 45 = x
1 = x
The volume of this gas is 1 m3.
Hope this helps :) also the gas expanded .5 of m3.
Answer: 9/4n
Explanation:
Let's take T to represent tank
When n litres of fuel was added to tank that was 1/3 full = n + 1/3T
The tank was 7/9T
n+1/3T = 7/9T
n =7/9T - 1/3T
n = 4/9
If a full tank is taken to be 1 = 9/9
Hence, we will have 1 = x × n
1 = x × 4/9
x = 9/4
Hence 9/4 of n = 9/4n
