A baseball player (hitter) hits the ball with her bat. The ball flies north at an angle a above ground and with an initial speed
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If one of two interacting charges is doubled, the force between the charges will double.
Explanation:
The force between two charges is given by Coulomb's law
K=constant= 9 x 10⁹ N m²/C²
q1= charge on first particle
q2= charge on second particle
r= distance between the two charges
Now if the first charge is doubled,
we get
F'= 2 F
Thus the force gets doubled.
Answer : The specific heat of aluminum is,
Solution : Given,
Heat absorbs = 677 J
Mass of the substance = 10 g
Final temperature =
Initial temperature =
Formula used :
or,
Q = heat absorbs
m = mass of the substance
c = heat capacity of aluminium
= final temperature
= initial temperature
Now put all the given values in the above formula, we get the specific heat of aluminium.
Therefore, the specific heat of aluminum is,