Answer:
Alternating current
Explanation:
The electrical current periodically changes direction.
Answer: The correct answer is "the same magnitude of force, 60 N should be applied".
Explanation:
Balanced forces: These forces are balanced when the forces are acting equal in magnitude but opposite in direction. The balanced forces will not cause any change in the speed of the object.
Unbalanced forces: These forces are unbalanced when the forces acting on the object are not equal in magnitude. It will cause the change in the speed of the body.
In the given problem, Jennifer stands on one side of a filing cabinet and pushes with a force of 60 N. If Nathan wants to help Jennifer demonstrate balanced forces, then he should apply the same magnitude of force of 60 N.
Answer:
Explanation:
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
= Mass of sphere = 2000 kg
= Mass of other sphere = 2.1 kg
r = Distance between spheres
Force of gravity is given by
The gravitational force is
The gravitational force is
It is the Pacific Ocean.
There's not really a way to give evidence, so hope it helps!
Answer:
The initial speed of the ball is 3.93 m/s.
Explanation:
It is given that,
A ball is thrown horizontally from a height of 19 m, h = 19 m
Let u is the initial speed of the ball so, its final velocity, v = 5u
Using third equation of motion as :
u = 3.93 m/s
So, the initial speed of the ball is 3.93 m/s. Hence, this is the required solution.