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Physics
A Level

What is the function of the control rods in the entire fission reactor proccess?

Fuel rods provide fissionable elements such as uranium - 235 , The uranium abosrbs a neutron at thermal speeds (  energy transefered to the moderator) from previous reactions. This then enables the Uraniu...

CS
Answered by Charles S. Physics tutor
5317 Views

An engineering student found that the Youngs modulus of an alloy was 2.8 x 10^11 Pa. The 1.5m wire of the allow increased in length by 0.24% during an experiment. Calculate the stress on the wire.

The Youngs modulus of a material is = Stress / Strain. Therefore, the stress of an object is the strain multiplied by the Youngs modulus. We know that strain is the change in length (or extension) divided...

DT
Answered by David T. Physics tutor
3491 Views

Give an example of 3 different types of radiation stating their make up, penetration and ionising effect.

alpha - helium nucleus - least penetrating - most ionising

beta - electron or positron - second most penetrating - second most ionising

gamma - photon - most penetrating - least ionising

MS
Answered by Mark S. Physics tutor
1726 Views

Determine a vector expression for the position of a particle whose velocity is (3t^2 - 8)i + 5j m/s.

r(t) = [integral] v(t) dt

      = (t^3 - 8t + C)i + (5t + C)j m

MT
Answered by Matteo T. Physics tutor
1870 Views

Find, using integration, the work done in compressing a spring by a distance x.

[integral from 0 to x']dW= [integral from 0 to x'] F(x') dx'

=[integral from 0 to x']kx' dx'

=1/2k

MT
Answered by Matteo T. Physics tutor
3777 Views

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