Answer:
B.
Explanation:
Given that a student runs up a flight of stairs which info is not needed to calculate the rate of the student is doing work against gravity A the height of the flight of stairs B the length of flight of stairs C the time taken to run up the stairs D the weight of the student
The rate of doing work is known as power.
Power = work done/time
Work done = energy = mgh
Since energy = mgh
Where mg = weight
And h = height
Time = time taken to run up the stairs.
Time, weight mg and height h will be needed while the Length of the flight is therefore not needed.
The correct answer is B.
The clothing seems white because the entire light is reflected.
<h2>what is absorption and reflection?</h2><h3>Absorption:</h3>
This occurs when light is transformed into another type of energy. This happens when light vanishes while travelling through another medium.
<h3>reflection:</h3>
It is referred to as light reflection when a light ray hits a polished, smooth surface and bounces back. The incident light rays hit the surface and are reflected off of it. The beam that returns is referred to as the reflected ray.
to know more about absorption and reflection go to - <u>brainly.com/question/3883323</u>
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Answer:
1)Eat healthy food
2)Exercise daily
3)Drink plenty of water
4)Get plenty of sleep
5)Do not take stress
6)Be hygienic
Explanation:
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Answer:
The best description of inertia is an objects velocity
