Do both cars leave the starting line at the same time ? That's kind of important. I'll assume that they both start out at the same time, and now I'll proceed to answer the question that I have invented.
-- Car B moves 4 m/s faster than Car A .
-- So Car-A's lead shrinks by 4 meters every second after they start.
-- It takes (10/4) = 2.5 seconds for Car-A's lead to shrink to zero.
-- So Car-B overtakes Car-A <em>2.5 seconds</em> after they start.
Answer:
The coefficient of linear expansion \°C
Explanation:
Given initial temperature °C
And final temperature °C
Initial length
Final length
We have to find the coefficient of linear expansion
The coefficient of linear expansion is defined as the change in length per unit original length divide by the change in temperature.
So, \°C
Answer:
Twice
Explanation:
From the formula for velocity in a circle
V= 2πr/T
Where V is velocity
r is raduis
T is period
We see that as r increases V increases so if r is doubled V becomes doubled
Answer:
Explanation:
Diameter
Height
Fill height
Angular speed
Generally the equation for Angular velocity is mathematically given by
Generally the equation for Liquid surface is mathematically given by
Therefore the liquid drop at center due to rotation is
Answer:
the electric force and the magnetic force.