When a lead bullet of mass 30 gm strikes a target the temperature of bullet rises by 40°C. Assuming that the target does not heated, calculate the amount of generated.
1 Answer
Given,
mass m = 30 gm = 0.03 kg
raise in temperature dt = 40°C
Specific heat capacity s = 126 J/kg°C
Heat generated Q = ??
According to formula,
Q = msdt
Q = 0.03 * 126 * 40
Q = 151.2 J
Hence, 151.2 J heat is generated.
Topics from Physics
Physical Quantities
27
Electricity & Magnetism
48
Motion
8
Measurement
4
Electricity
166
Physical Optics
80
Waves
117
Force
51
Heat
137
Laws of Motion
1
Light
100
Pressure
139
Thermodynamics
1
Related Questions