Answer:
25%
Explanation:
use F=mg
then use the answer you get from that and plug it into W=Fxh
take that answer and divide it by 400 J and multiply by 100
round to sig figs
Answer:
34.64 cm
Explanation:
Given that:
The depth of the hole h = 10 cm
height of the water holding in the tank H = 40 cm
For a stream of flowing water, the distance (x) at which the stream strikes the floor can be computed by using the formula;





x = 34.64 cm
Answer:
The brick would heat up the fastest.
Explanation:
Bricks are thick but they absorb sunlight at an alarming rate.
Currently, there are no black dwarfs that exist in our universe. Black dwarfs are extremely cool and are almost invisible. They are hypothetical in existence.