I will tell the Chief about the high worth of the Gold and the various
substances it can be used to produce.
<h3>What is Gold?</h3>
Gold is a naturally occurring element with a bright, slightly orange yellow
color. It has a high value and can be used in the production of various
substances such as:
The Chief should however be told about the high worth value of Gold and
the various things it can be used for so he can make a decision.
Read more about Gold here brainly.com/question/1159978
The correct option is (A) <span>the first law of thermodynamics
Explanation:
The first law of thermodynamics takes the idea of law of conservation of energy and modify it for thermodynamics systems. It is the total internal energy of the systems equals to the amount of heat added "to" the system and the workdone "by" the system given as:
</span>ΔU = Q - W
<span>Q = heat added TO the system
W = work BY the system
</span>ΔU = Total internal energy
<span>
But the total internal energy is CONSERVED; it means that energy cannot be created or destroyed; it can only be transformed from one form to another. Hence the correct option is (A).</span>
FORCES HAVE STRENGTH AND DIRECTION
Answer:
Given that,
- Power = 2000 W
- time = 60 seconds
- distance= 10m
Power = work done ÷ time
Here, since the movement is vertical, w = mgh
So,
Power = mgh÷t
2000 = (m × 9.8 ×10) ÷ 60
m = (2000 ×60) ÷98
m = 1224.5kg
it is also known as formula for circumfrence which is 2 times pi times radius. if radius was 5 then the circumfrence would be 10pi.
