358 rocks, critical thinking
Yes, but it's a null vector .So,no vector can have a component at right angle to itself unless it is a zero vector.
Answer:
here you go
Explanation:
Why do your lights actually come on almost instantaneously? ... Wiring the house in parallel does not make a difference – there is no current flowing through the light bulb when the switch is off no matter how the house is wired. If there were a current already, the light would be on!
Newton's second law states that the force applied to an object is equal to the product between the mass m of the object and its acceleration a:

Using

and

, we can find the value of the force applied to the roller-blade to obtain this acceleration:
The strength of the gravitational force between two objects depend on two factors, mass and distance.