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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 gra...

Answered by Gianluca C. • Physics tutor

1918 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 emitte...

Answered by Stefano A. • Physics tutor

12514 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.

Answered by Ben H. • Physics tutor

1827 Views

Which type of electromagnetic radiation has the longest wavelength?

Radio waves

Answered by Ashleigh S. • Physics tutor

2847 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=mv²/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 ...

Answered by James M. • Physics tutor

5910 Views