If it follows the 1st law of thermodynamics it would also remove heat of 314J from the food inside the refrigerator.
We need to use differant energy soureces that are renewable. THis is because at the moment most of the enrgy that we use is unrenewable, coal, oil, petrol etc. It takes millions of year to create and is burnt in a matter of minuetes. We need energy that is renewable so we can supply it quickly when we need it because all nonrenewable enrgy's are running out. Only in 1 million years if a fish dies now will it be compatable to turn into fuel. Wind power, solar power, movement energy are all renewable. THis is why it is very important we use those things. Hope this helped :-) Bonnie Year 7
Answer:
stronger
Explanation:
A magnet can pull up a metal object because it is stronger than the gravitational force of the entire planet.
I am not sure on the rest but the answer to question 4 is volts. sorry i couldn’t be of more help!
Answer:
magnitude of the gravitational force is 9.04 × N
Explanation:
given data
altitude = A = 612 km = 612000 m
mass M = 11,100 kg
mass of the Earth m = 5.97 × kg
Earth average radius = 6.38 × m
to find out
magnitude of the gravitational force
solution
first we get here distance from space to centre of earth that is
distance = altitude + earth radius
distance = 612000 + 6.38 × m
distance = 6.99 × m
so now we get here magnitude of the gravitational force that is express as
magnitude of the gravitational force F = ...........1
here G is gravitational constant that is 6.67 × Nm² /kg and M is mass of space and m is mass of earth
put here all value we get
F =
F =
F = 9.04 × N
so magnitude of the gravitational force is 9.04 × N