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Physics
A Level

A linear accelerator (LINAC) is used to accelerate protons at CERN before they are injected into the Large Hadron Collider. Explain with the aid of a diagram how the proton is accelerated by the LINAC.

A linear accelerator is built with several drift tubes that increase in length, at either end of each tube are electrodes that provide an alternating current. As a proton is a positively charged particle ...

Answered by Emma B. Physics tutor
3783 Views

Explaining how capacitors work

Capacitors work through the build up of current on their two opposing plates. Current in the form of negatively charged electrons builds up on one plate which in turn repels electrons on the other plate m...

Answered by Ryan M. Physics tutor
1840 Views

What is the escape velocity of an object leaving a planet mass M, radius R?

As the object leaves the surface of the planet, it loses kinetic energy and gains gravitational potential energy. Through conservation of energy we know the loss of kinetic energy must be equal to the gai...

Answered by Thomas R. Physics tutor
1945 Views

The roar of a tiger in a zoo can be heard by visitors at the entrance, even though the tiger can not be seen because there is a hill in the way. Name and explain this effect.

This effect is called diffraction. This occurs when waves spread over obstacles or through gaps.

Answered by Matilda C. Physics tutor
2281 Views

How would we calculate the distance covered by a train that starts at rest, then accelerates to 5km/hr in 30 mins then stays at this constant speed for 12 minutes?

I would draw the situation Then use bring out the relevant SUVAT equationsI would explain how the equations work to give the student some intuitionThen carry out the problem step by stepThen I would ask i...

Answered by Harrison L. Physics tutor
1439 Views

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