Answer:
Net force on electron will be
Explanation:
We have given that the orbit
Speed of the electron
Mass of the electron is given as
Centripetal acceleration is given by
Force is given by F = ma
So force
Unbalanced as long as it is moving up or down. Immediately after being fired the vertical force from the launch will be greater than the force of gravity. for an instant at the the beginning of the projectiles decent the force will actually be balanced and there will be no vertical movement. After that the force of gravity is greater.
tl;dr they are unbalanced
Answer:
The mass of Neptune is kilograms.
Explanation:
From Newton's Law of Gravitation, the gravitational acceleration of Neptune is determined by the following formula:
(1)
Where:
- Gravitational constant, measured in cubic meters per kilogram-square second.
- Mass of the planet, measured in kilograms.
- Radius of the planet, measured in meters.
- Gravitational acceleration, measured in meters per square second.
If we know that , and , then the mass of Neptune is:
The mass of Neptune is kilograms.
Answer:
Explanation:
Given
initial speed
coefficient of kinetic friction
It moves a distance d after that it comes to rest
acceleration offered by table top
Answer:
The enthalpy of fusion of a substance, also known as heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.