5. between the stone and the ground
for a stone at rest on the ground, we have two forces acting on the stone. first is the force on the stone by the earth due to gravity of earth. second is the force applied by the ground in upward direction to balance the force of gravity on the stone.
so first interaction is between earth and stone : earth pulls stone towards it and stone pulls earth towards it by same amount of force.
second interaction is between stone and ground : ground push the stone in upward direction and stone push the ground in down direction by same amount of force.
hence the correct choice is
5. between the stone and the ground
Since Efficiency = 92% = 0.92
Efficiency = (Work Output) / (Work Input)
0.92 = Wo / 100
Wo = 0.92 * 100
Wo = 92 J.
Therefore 92J is used to move the bicycle.
Answer:
3.92N
Explanation:
Force= mass×accelerarion due gravity
But mass= 0.40kg
acceleration due to gravity = 9.8 m/s^2
Force = 0.40×9.8
Force=3.92N
De Broglie wavelength of the subatomic particle is 0. 0020 * (10 )^ -3 nm.
<h3>
What do you mean by a subatomic particle?</h3>
Any of the multiple self-contained units of matter or energy that are the building blocks of all matter are considered subatomic particles, also known as elementary particles. They include the heavier constituents of the small but extremely dense atom's nucleus, the positively charged protons and the electrically neutral neutrons, as well as the electrons, the negatively charged, nearly massless particles that nonetheless make up the majority of the atom's size. The only known subatomic particles, however, are not these fundamental atomic building blocks. The electron is just one member of a class of fundamental particles that also includes the muon and the neutrino. Protons and neutrons, for example, are composed of quarks.
Let the De Broglie wavelength be Λ.
Λ = h/p
= (6.626 * 10^-34) / (351 * 9.11 * 10^-31)
Λ = 0.0020 * 10^-3 nm
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