Answer:
(a). The speed at point B is 7.41 m/s.
(b). It is moving faster at B.
Explanation:
Given that,
Charge = -5.00μC
Mass of particle
Potential at point A= 200 V
Potential at point B= 800 V
Speed of particle at point A = 5.00 m/s
We need to calculate the speed at point B
Using law of conservation of energy
Put the value into the formula
Hence, (a). The speed at point B is 7.41 m/s.
(b). It is moving faster at B.
Answer:
When muscles are required to work harder than they're used to or in a different way, it's believed to cause microscopic damage to the muscle fibres, resulting in muscle soreness or stiffness. DOMS is often mistakenly believed to be caused by a build up of lactic acid, but lactic acid isn't involved in this process.
Explanation:
A net force is the sum of all forces acting on an object. A net force is capable of accelerating a mass. For instance, if the wheels of a car push it forward with 5 Newtons<span> and drag is </span>3 Newtons<span> , the net force is </span>2 Newtons<span> , forward.</span>
The answer is C hope this helps
Answer:
Force of kinetic friction, Fk = 6N
Explanation:
Given the following data;
Coefficient of kinetic friction, μ = 0.2
Normal force, Fn=30N
To find the Force of kinetic friction;
Mathematically, the force of kinetic friction is given by the formula;
Fk = μFn
Where;
- Fk represents the force of kinetic friction.
- μ represents the coefficient of friction.
- Fn represents the normal force.
Substituting into the equation, we have;
Fk = 0.2*30
Fk = 6N
Therefore, the force of kinetic friction is 6N.