Recent content by jtb93

Homework Statement An electron is suspended due to the combination of an electric field and a magnetic field. What is the direction of the magnetic field in this region? Don't need to solve this, just need to explain the approach to solve it. Homework Equations Right hand rule 1- thumb...

Took more step than expected but it finally makes sense, haha. Thanks!

Yes, the kinetic energy is increasing so the positron speeds up.

Kinetic energy?

More work has been done so the speed increased?

Nevermind, I understand how you did that now. So ΔV is negative.

Positive.

The electric field would be directed towards electron. PE=qV?

The charge (Q) is going to stay the same throughout the problem but the voltage difference is going to change from high to low?

Thanks for the response on my question. I'm honestly lost in physics right now and my professor is of no help. My course is online and the professor has little to no office hours per week. In the question you responded to, I assume that a negatively charged particle would move towards a...

Homework Statement A particle begins in a region where positive and negative charges are uniformly distributed and ends up in a region near a negatively charged plate. What is the sign of the potential difference in this case? Homework Equations N/A The Attempt at a Solution I assumed this...

Homework Statement A positron is a particle with the same mass as an electron, but with a positive charge. If a positron begins with a speed of 1/10th the speed of light, and then moves from a high voltage region to a low voltage region, what happens to its speed? Ignore any gravitational...

Homework Statement A cubical cooler, 0.45 m on a side, has an R-value of 3.2 m2 K/W. The sides of the cooler are 0.030 m thick. The cooler is filled with water at a temperature of 2 degrees C and is placed in a room with a temperature of 19 degrees C. The heat capacity of water is 4190 J/kg K...