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Why is a pendulum with a bob of the same size but larger mass than another bob damped more lightly?

The heavier bob has more kinetic energy/potential energy/momentum for any given amplitude of the two pendulums due to its larger mass, as each of these three quantities depend linearly on mass. The damping i...
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Answered by Lucy S. • Physics tutor
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Outline the three major tectonic boundaries and the associated tectonic features

There are three general plate boundaries: convergent, divergent and transform. (INSERT SIMPLE DIAGRAMS HERE) Convergent These occur when two tectonic plates collide and meet each other. As two types of litho...
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Answered by Matt L. • Geography tutor
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A circle, C, has an equation: x^2 + y^2 - 4x + 10y = 7 . Find the centre of the circle and its radius?

The equation given needs to be transformed into a more familiar equation of a circle which we know the properties of and are therefore able to find its centre. Do you know what type of equation im speaking o...
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Answered by Alex A. • Maths tutor
8848 Views

Cliff has a bag of tennis balls. 8 are green, 7 are yellow and 5 are white. He picks a tennis ball at random. What is the probability that he picks one that is not green?

To solve this question, we need to know how many balls there are altogether in Cliff's bag. In total, there are 20 balls (8+7+5). We know that 8 of the balls are greens, so by subtraction (20-8) we can tell ...
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Answered by Kabilan S. • Maths tutor
5663 Views

An electron is trapped within a square well potential of width 10 nm. What would be the wavelength of the photon emitted when an electron moves from the first energy level to the ground level.

Use energy difference between ground and first level to find E1-E0. Energy of the electron a nth energy level is found using En = (n^2 pi^2 hbar^2)/2mL^2Where n is the energy level plus 1, pi and hbar are co...
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Answered by Aubin G. • Physics tutor
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