From the first law of thermodynamics, we use the equation expressed as:
ΔH = Q + W
where Q is the heat absorbed of the system and W is the work done.
We calculate as follows:
ΔH = Q + W
ΔH = 829 J + 690 J = 1519 J
Hope this answers the question. Have a nice day.
Answer:
Explanation:
Not considering any type of losses in the transformer, the input power in the primary is equal to the output power in the secondary:
So:
Where:
Solving for 
Replacing the data provided:
Increase .... decrease .... presumably it's the "best shape" for a body which has been formed by the gravitational force
Answer:
A ruby is measures a 9 on the Mohs Scale of Hardness, second only to diamond and matched with sapphire. This makes a ruby an extremely hard and durable gemstone.
A sapphire is the birthstone for September. It is also a traditional gift for those celebrating 5th or 45th anniversaries.
