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Give an example of ionising radiation

gamma, beta, ultraviolet

Answered by Rocio C. • Physics tutor

1896 Views

Waves on the surface of water are transverse waves. State one other example of a transverse wave.

Light wave.

Answered by Rocio C. • Physics tutor

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The flow of water in a pipe is turbulent. Define turbulent flow.

There are sudden changes in speed and direction of the fluid.

Answered by Rocio C. • Physics tutor

1882 Views

Imagine a ball rolls off a set of stairs with horizontal velocity, u; the stairs have a height, h and length of l. Find a formula for which step the ball will hit, n.

We set up equations in horizontal and vertical directions assuming constant acceleration due to gravity, g. It is always useful to draw a diagram to see what's going on. Using the SUVAT formula of s = ut...

Answered by Joshua B. • Physics tutor

1857 Views

A circuit with a voltage source of 18V, has 3 resistors all connected on parallel, values at 2ohms, 6ohms and 7.5ohms. Find the total circuit resistance, and then subsequently, the total current supplied and power dissipated in the curcuit.

The total resistance is found by the addition of resistors in parallel, in the equation (1/R_T)=(1/R₁)+(1/R₂)+(1/R₃), therefore the total resistance is 1.25ohms....

Answered by Harrison M. • Physics tutor

1588 Views