Answer: Acted on by equal forces in opposite direction
Explanation:
Newton's First Law says that every body continue in its state of rest or constant speed on a straight line unless being acted upon by an external force.
<span>1.0 gram (g) of electrons would contain 10^27 electrons
Electrons have an electric charge of −1.602×10−19 coulomb
so total charge of 1 g electrons = -1.602 x 10^-19 x 10^27 = -1.602 x 10^8</span>
Answer:
Angular velocity of an ultra centrifuge is 17146.42 rad/s.
Explanation:
Given that,
Acceleration of an ultra centrifuge, 
Distance from axis, r = 2 cm = 0.02 m
We need to find the angular speed. We know that the relation between angular speed and angular acceleration is given by :
So, the angular velocity of an ultra centrifuge is 17146.42 rad/s.
Answer:
1.76m/s²
Explanation:
Acceleration is the time rate of change in velocity of a body. It is a vector quantity that is it has both magnitude and direction
From newton's second law of motion which states that the rate of change of momentum of a body is proportional to the applied force which takes place in the direction of force applied.
This law gives a formula which relate force, mass and acceleration.
Force = mass x acceleration
Given that force = 9.7N , mass = 5.5kg
Since force(F)= mass(m) x acceleration(a)
Therefore F = ma
Divide both sides by m
F/m = ma/m
Therefore,
Acceleration (a) = F/m
Acceleration = 9.7N ➗ 5.5kg
Acceleration = 1.76m/s²
The S. I unit of acceleration is m/s²
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