Top answers

Which state can a substance NOT be in if heat transfer through convection is occurring?

Solid.
CM
Answered by Calum M. • Physics tutor
4035 Views

Describe the photoelectric effect.

The photoelectric effect is a phenomenom which occurs when photons strike a metal causing electrons to be released from the metal atoms. This occurs because the photons transfer their energy to the electrons...
IW
Answered by Iman W. • Physics tutor
4531 Views

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
9441 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
43795 Views

What is an isotope?

Isotopes of an element exist when the atoms of an element have different numbers of neutrons, or in other words the same atomic number but a different mass number.
MT
Answered by Matthew T. • Physics tutor
4807 Views