Answer:
Explanation:
speed of light = 3 x 10⁸ m /s .
distance between moon and the earth = 3.77 x 10⁵ x 10³m .
Time taken by light to cover the distance
= distance / speed
= 3.77 x 10⁸ / 3 x 10⁸
= 1.256 s
A truck, I say that it is a truck because when a truck gets going, it is very hard to stop.
You use Beers Law.
A = εmCl
Where A=absorbance, εm = molar extinction coefficient, C = concentration, l=path length of 1 cm)
Hello There!
You need to use Hooke's law:
PE = 1/2 kx².
x is the displacement and k is the spring constant.
Hope This Helps You!
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If a disk rolls smoothly across a floor, the velocity is zero of the point that is in contact with the floor.
<h3>What is Velocity?</h3>
Observed from a specific point of view and measured according to a specific unit of time, velocity is the direction at which an object is moving and serves as a measure of how quickly its position is changing.
<h3>What is known as velocity?</h3>
A particle or object moves with respect to time when moving at a certain speed, which is expressed vectorially as velocity. Meters per second (m/s) is the commonly used unit for measuring velocity magnitude, also known as speed. A different way to indicate velocity magnitude is with the centimeter per second (cm/s) unit.
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