Explanation:
The surface tension of a liquid results from an imbalance of intermolecular attractive forces, the cohesive forces between molecules: A molecule in the bulk liquid experiences cohesive forces with other molecules in all directions. A molecule at the surface of a liquid experiences only net inward cohesive forces.
a . true hardness and density are physical properties
Good morning.
The only reason I answered this is because this question was looking lonely. Like, /desperate lonely/. Anywho, let's work.
Proteins are biomolecules that have multiple jobs to do in an organism. Examples of their functions are below.
1. They are used to transport molecules.
2. They are used to place/store molecules.
3. They are needed for movement of the cell.
Acceleration (A) = V(final)-V(initial)/TThe unit for acceleration is metres/second squared (m/s^2).
You're already given Velocity (V) = 40 m/s in the question, so just plug in the values.
A= 40/0.10
A= 400 m/s^2.
The net force on the chair is 100N
<u>Explanation:</u>
The free body diagram is attached below.
According to the condition,
when a downward gravitational force of 155N of earth acts then an equal opposite upward force of same magnitude also acts on the chair.
Therefore, the normal force acting on the chair is 155N
When a chair is pushed forward on a surface, then a frictional force also acts on it in opposite direction.
The net force acting on the chair is = F - f
Where,
F is the applied force
f is the force of friction
Net force = 155N - 55N
Fnet = 100N
Therefore, net force on the chair is 100N
