Enable contrast version

# Tutor profile: Curtis W.

Inactive
Curtis W.
Student at University of Washington
Tutor Satisfaction Guarantee

## Questions

### Subject:Physics (Newtonian Mechanics)

TutorMe
Question:

Why does centripetal force point inwards? When I am turning a sharp curve in my car, I feel myself getting pushed outwards. So shouldn't centripetal force points outwards?

Inactive
Curtis W.

What you are feeling is the car door exerting an inward force on you. Centripetal force must point inwards because your change in velocity points inwards.

### Subject:Physics (Electricity and Magnetism)

TutorMe
Question:

I have a capacitor in series with a resistor in a circuit powered by a 5V battery. What is the current running through the circuit?

Inactive
Curtis W.

There is zero current in this circuit because in a purely DC circuit, a capacitor essentially acts as an open wire, so no current will flow through the capacitor. This means that the voltage drop across the resistor is zero (V=IR and I=0) so then the voltage across the capacitor must be 5V in order to satisfy Kirchhoffs Loops Rule.

### Subject:Nuclear Physics

TutorMe
Question:

If protons are positively charged, how are they held together in the nucleus? wouldn't they repel each other away?

Inactive
Curtis W.

Protons are held together by a force known as the strong nuclear force, which is much greater in magnitude then the electromagnetic force that repels them away.

## Contact tutor

Send a message explaining your
needs and Curtis will reply soon.
ContactÂ Curtis