Answer:
C. J/gºC
Explanation:
The specific heat capacity of a substance is defined as the amount of heat energy that must be supplied to 1 kg of a substance in order to increase the temperature of that substance by 1 ºC.
Mathematically, it is calculated as:
where
Q is the amount of heat energy supplied to the substance
m is the mass of the substance
is the increase in temperature of the substance
We know that:
Q (energy) is measured in Joules (J)
m (mass) is measured in grams (g)
(temperature) is measured in Celsius degrees (ºC)
Therefore, the SI units of specific heat capacity are
Answer:
i) Heat required to raise temperature of iron is
ii) Heat require to raise temperature of copper is
iii) Heat require to raise temperature of tungsten is
Explanation:
As we know that specific heat capacity of
i) Iron is 444 J/kg C
so heat required to raise its temperature is given as
ii) Copper specific heat is 385 J/kg C
so heat required to raise its temperature is given as
iii) Tungsten specific heat capacity is given as 134 J/kg C
<em><u>the correct one is work is the force applied on a body to make it displace through its position ..
mathematically we say it as W= F.d
where F is force and d is displacement which shows that displacement of body by applying force is work..</u></em>
If the ground is level, then the snowball can never have
any more kinetic energy than it hand when it left your hand.
If more mass sticks to it as it makes its way across the lawn,
then it must slow down, so that its
KE = (1/2) (present mass) (present speed)²
never exceeds the KE you gave it when you tossed it.
And we're not even talking yet about all the energy it loses
by scraping through the snow and mashing down the blades
of grass in its path.