Answer:
Explanation:
Initially , crate is going upwards with uniform velocity so net force on crate is zero.
Tension T = mg ( its weight )
= 14.5 x 9.8
= 142.1 N
Now tension is increased to 180 N , so net force on it
= 180 - 142.1 = 37.9 N
Work done by tension that is 180 N
= Tension x displacement
= 180 x 1.15 x 10⁻³
= .207 J
The main difference between potential and kinetic energy is that one is the energy of what can be and one is the energy of what is. In other words, potential energy is stationary, with stored energy to be released; kinetic energy is energy in motion, actively using energy for movement.
Answer:
For instance, an immobile object located at some height above the ground has potential energy. If the object starts to fall, its potential energy is converted to motion or kinetic energy. The heavier and the higher the object is, the more potential energy it will have. Transfer of thermal energy via conduction is aided by vigorously vibrating particles in a medium that has gained energy through heating.
Explanation:
Answer:
X-rays
Gamma rays
Explanation:
The electromagnetic waves are arranged in order of their frequencies and wavelengths. This arrangement forms the electromagnetic spectrum. The x-rays and gamma rays form the part of the spectrum with highest frequencies and least wavelength. In the order of decreasing frequency and increasing wavelength, we start with Gamma rays ,x-rays uv, Visible light, Infrared light,Microwave then radio waves.