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Physics
A Level

A car is travelling at 10m/s when it brakes and decelerates at 2ms^-2 to a stop. How long does the car take to stop?

This is a question testing the knowledge of the equations of constant acceleration (Suvat equations)First convert the question into a standard form. For example by writing out the variables as follows s (...

Answered by Kirill M. Physics tutor
7172 Views

What is the Quark structure, Baryon number, and antiparticle of a kaon, K+, which has a strangeness of 1.

Firstly we must figure out what we know about this particle. We have its stangeness which is 1 and we know its charge from the "+" symbol in the question, which is also 1.For the first bit we sh...

Answered by Louis H. Physics tutor
35518 Views

Why does current split between branches of a parallel circuit, but voltage remains the same for each branch?

Current is the rate of flow of charge in a circuit; you can imagine the flow of electrons as water flowing through a pipe. If the pipe splits into two, some of the flow will go through one pipe and som...

Answered by Rose A. Physics tutor
31690 Views

How would you integrate ln(x)

To integrate ln(x) you will need to use intergration by parts. As you can differentiate ln(x) (it is equal to 1/x) and there is an implied 1xln(x). As a result you can differentiate ln(x) and integrate...

Answered by Dominic D. Physics tutor
4264 Views

What determines the frequency of oscillation of a (loaded) spring?

The frequency is reduced by:

- Adding extra mass (greater 'm'): This is because the extra mass increases the inertia of the system

- Using ...

Answered by Giny H. Physics tutor
4708 Views

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