We know that
Q=m.s.t, where Q= Heat, s= Specific heat of the substance, t=temperature(Difference in temperatures)
=>s= Q/m.t
=>s=525/(25X15)
=>s=525/375
=>s=1.4 cal/g/0c
Specific heat of the substance is 1.4 cal/g/0c.
<span>There
is combustion or explosion. This is because of
the oxidation reaction produces heat rapidly hence able to spark a fire. Some materials
oxidize rapidly and hence their property is harness
in motion/movement processes. An example is the use of fossil fuels in combustion
engines.</span>
Answer:
P.E = 3.675 J
Explanation:
Given data:
Height of table = 0.75 m
Mass of book = 0.5 kg
Potential energy = ?
Solution:
Formula:
P.E = mgh
g =acceleration due to gravity = 9.8 m/s²
by putting values,
P.E = 0.5 kg× 9.8 m/s² ×0.75 m
P.E = 3.675 kgm²/s²
J = kgm²/s²
P.E = 3.675 J
