Kinetic energy is defined as the energy of motion. On the other hand, potential energy is the energy of non-motion.
Hope that helped =)
Third class lever it has the exact resistance
Answer:
i.e.
Explanation:
Given:
angular speed,
mass of the disk, 
radius of the disk, 
mass of the chunk, 
radius of the chunk, 
We know that the angular momentum is given by:
and moment of inertia for a disc:
According to the conservation of angular momentum, the final angular momentum is equal to the initial angular momentum.
Answer:
v > ii > iii > i > iv
Explanation:
The speed of light does not depend on the wavelength of light rather the medium through which it passes through.
v) The speed of light in a vacuum is maximum = 300000 km/s
ii) The speed of light in air = 2999910.026 km/s
iii) The speed of light in water = 2255639.097 km/s
i) The speed of light in glass = 1973684.210 km/s
iv) The speed of light in diamonds = 1239669.421 km/s
Hence the ranking will be
v > ii > iii > i > iv
Answer:
(1) Hooke's law
(2) a) Extension is directly proportional to the applied load
b) The starting point of the graph is the origin (0, 0) or absence of load, no extension
Explanation:
(1) The law obeyed by the spring is known as Hooke's law which states that the extension or compression, x, of a spring proportional to the applied force, F
F = -k × x
Where;
k = The spring constant
(2) Given that the law mathematically is F = -k × x
The two features of the graph that show that the law is obeyed are;
a) The extension increases as the load is increased
b) The extension is zero when the there is no applied load.
