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An electromagnetic wave has a wavelength of 3.0m and a speed of 3x10^8 m/s. State what type of radiation this wave is and calculate the period of the wave.

For the first part we know that the wavelength is over 1.0 m so it is a radio wave.To find the period we first find the frequency as the period is the reciprical of the frequency. (T = 1/f).To find the frequ...
AP
Answered by Anna P. • Physics tutor
9884 Views

In what ways may a text relate to its societal context?

There are many points of relation between a text and its context, whether these will be identified within the text is dependant on the students knowledge of the context:literary interrelation: a text may be ...
SE
Answered by Simeon E. • English tutor
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Consider what criticism may be made of the non-fatal offences against the person.

Non-fatal offences against the person are offences that are criminal in nature but do not cause a fatal injury to the person once inflicted. When discussing the extent to which the non-fatal offences can be ...
DV
Answered by Dhruvi V. • Law tutor
6815 Views

Find the stationary points of the curve f(x) =x^3 - 6x^2 + 9x + 1

Step One: stationary/turning points are points on the curve where the gradient equals 0 (i.e. a point at which the slope changes from negative to positive, or vice versa). So we need to find the gradient of ...
AL
Answered by Angharad L. • Maths tutor
12446 Views

Describe three effects of smoking on the alveoli

Answers could include:Thinning of alveoli walls to reduce the size of the alveoli air sacsSacs lose their elasticity leading to a difficulty in expelling carbon dioxide and taking in oxygenDecrease in diffus...
TB
Answered by Tash B. • Biology tutor
3375 Views