Answer:
it's right you did a great job
Answer:

Explanation:
From the question we are told that:
Speed of light 
Generally the equation for Average Speed is mathematically given by

Where
d=Distance between the Earth and the sun

Therefore



Since m and n is given in the form of

Therefore


The cyclist who travels 20 kilometers per hour for 15 kilometers
Out of the choices given, igniting the gas-air mixture supplies the heat for the hot reservoir in a car's engine. The correct answer is C.
All machines are not 100% efficient because of <span>C. Friction</span>