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How can we explain the standing waves on a string?

When a wave reaches the end of a string, it is reflected and inverted, so in a fixed string in which we've caused vibrations, such as a guitar string, we have two sinusoidal waves travelling in opposite dire...
BA
Answered by Boris A. • Physics tutor
3166 Views

How do I find the x and y components of a vector?

If you've been given the angle the vector makes with an axis, you can find the component of the vector parallel to that axis by multiplying the size of the vector by the cosine of the angle it makes with the...
EE
Answered by Emma E. • Physics tutor
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Explain why an object moving around a circle is said to be accelerating when it has no resultant force acting upon it.

If an object has no resultant force acting upon it then it is moving at a constant speed. Acceleration is a vector quantity meaning that it includes magnitude and direction. When it is moving around a circle...
HO
Answered by Henry O. • Physics tutor
2105 Views

State the principle of superposition of waves and illustrate it schematically.

Whenever two or more waves travelling through the same medium at the same time pass through each other, the net displacement of the medium at any point in space-time is simply given by the sum of the individ...
PV
Answered by Pedro V. • Physics tutor
4238 Views

Whats the effective resistance in a parallel and series circuit with a cell and two 12 ohms resistors ?

What do we know about parallel circuits- Total current is equal to sum of the current in the individual branches I T = I 1 + I 2 Component of each branch of a circuit share the same voltage as the cell V 1 =...
SS
Answered by Suwanja S. • Physics tutor
3600 Views