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I have trouble visualizing simple harmonic motion, and remembering all the related equations. How should I think about it?

The key is to realize that displacement, velocity and acceleration all vary sinusoidally, with the graph of each being displaced relative to the preceding one by 90 degrees; thinking about these three graphs...
GC
Answered by Gianluca C. • Physics tutor
2329 Views

How does the photoelectric effect provide evidence for a particulate nature of electromagnetic radiation?

The photoelectric effect is light incident on a metal’s surface causing the spontaneous emission of electrons. The classical wave theory of electromagnetic radiation predicted the kinetic energy of emitted e...
SA
Answered by Stefano A. • Physics tutor
13747 Views

Given an ammeter voltmeter a battery and a lamp how will you find the resistance of the lamp?

I will draw this on the whiteboard function.
BH
Answered by Ben H. • Physics tutor
2107 Views

Which type of electromagnetic radiation has the longest wavelength?

Radio waves
TD
3305 Views

Derive an expression to show that for satellites in a circular orbit T² ∝ r ³ where T is the period of orbit and r is the radius of the orbit.

For an object to stay in a steady orbit; F=mv 2 /r where: F is the force on the object towards the centre of the orbit, m is the mass of the object, v is the radial velocity of the object, and r is the radiu...
JM
Answered by James M. • Physics tutor
6472 Views