T object]user: which of the following is not correct for an object in projectile motion on earth?
1 answer:
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When you heat a certain substance with a difference of temperature 
the heat (energy) you must give to it is
where
is the specific heat of that substance (given in J/(g*Celsius))
In this case
Observation: the specific heat of a substance is given in J/(g*Celsius) or J/(g*Kelvin) because on the temperature scale a difference of 1 degree Celsius = 1 degree Kelvin
where
In this case
Observation: the specific heat of a substance is given in J/(g*Celsius) or J/(g*Kelvin) because on the temperature scale a difference of 1 degree Celsius = 1 degree Kelvin
Answer:
Explanation:
If charge Q is uniformly distributed over the ring then for small element of the ring the charge will be given as
now electric field due to this small element on the axis of ring at height "h" is given as
now since this electric field is radially in the direction of joining the position of charge to the given point
so net field due to ring will be along the axis of ring
so we have