The clicker emits EM (electromagnetic) wave which travels at the speed of light, that is
v = 3 x 10⁸ m/s
The frequency is
f = 900mHz = 9 x 10⁸ Hz
Because velocity = frequency * wavelength, the wavelength, λ, is given by
fλ = v
λ = v/f
= (3 x 10⁸ m/s) / (9 x 10⁸ 1/s)
= 1/3 m
Answer: 1/3 m
Answer:
Kinetic energy of bigger rock will be more than that of smaller one.
Explanation:
Kinetic energy of the rock is given by,
Kinetic energy = 
As velocity of both the rocks are same. Thus, kinetic energy is directly proportional to the mass of the rock
Kinetic energy ∝ mass
So, For greater mass kinetic energy will be greater and for smaller mass kinetic energy will be smaller.
Hence, Kinetic energy of bigger rock will be more than that of smaller one.
Answer:
a burning piece of converts Chemical energy into Heat(Thermal) and Light energy
B. by taking measurements during an experiment
Answer:
Object A will get 200 & object B will get 400 Potential Energy
Explanation:
Potential Energy = mgh (mass x gravity x height)
For Object A :-
2 (mass) x 10 (approx gravity on Earth) x 10 (distance/height)
= 200
For Object B :-
4 x 10 x 10
= 400
Hence Object B will have High Potential Force than A.
Hope it helps. Thanks