Answer:
Required energy Q = 231 J
Explanation:
Given:
Specific heat of copper C = 0.385 J/g°C
Mass m = 20 g
ΔT = (50 - 20)°C = 30 °C
Find:
Required energy
Computation:
Q = mCΔT
Q = 20(0.385)(30)
Required energy Q = 231 J
Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection.
Answer:
Explanation:
Given
Displacement is
of Amplitude
i.e.
, where A is maximum amplitude
Potential Energy is given by



Total Energy of SHM is given by
Total Energy=kinetic Energy+Potential Energy

Potential Energy is
th of Total Energy
Kinetic Energy is
of Total Energy
(c)Kinetic Energy is 


Answer:
Kinetic energy is the energy of a moving body while potential energy is the energy by vutue of it's position
Answer:accelaration will decrease because forse is inversly proportional to mass.
Explanation: