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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 (dis...
KM
Answered by Kirill M. • Physics tutor
9437 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 shoul...
LH
Answered by Louis H. • Physics tutor
43783 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 some thro...
RA
Answered by Rose A. • Physics tutor
40792 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 the 1...
DD
Answered by Dominic D. • Physics tutor
5805 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 weaker springs (smaller 'k') : The restoring force of the object at...
GH
Answered by Giny H. • Physics tutor
6474 Views