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Is the 'nuclear family' still relevant in today's society?

The tradiitional idea of a nuclear family, consisting of a husband and wife and their children, can still be seen as the dominant form of family today, however changes in society in recent decades have se...

Answered by Ed P. • Sociology tutor

21045 Views

Solve: 7x - 20 = 3x + 4

7x = 3x + 24 4x = 24 x = ²⁴/₄ x = 6

Answered by Alex G. • Maths tutor

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Describe the basic principles of ultrasound imaging (2 marks)

Ultrasound is any frequency above that of human hearing - around 20 kilohertz.

Ultrasound imaging works by emitting a known intensity of ultrasound at a speci...

Answered by Alex G. • Physics tutor

2530 Views

Find the integral between 1 and -2 for (4-x^2-3x^3)

= [4x - 1/3x³ - 3/4x⁴]¹_-2 = (4(1) - 1/3(1)³ - 3/4(1)⁴) - (4(-2) - 1/3(-2)³ - 3/4(-2)⁴) =(2 11/12) - (-8 + 8/3 - 12) ...

Answered by Alex G. • Maths tutor

3083 Views

Would you expect a calcium ion to be bigger, smaller or the same size as a calcium atom? Give TWO reasons to explain your answer.

Calcuim is in group two which means when it forms an ion it will donate its two outer elections, this means a calcium ion will be smaller as it has one less shell of electrons.

Answered by Urma C. • Chemistry tutor

14158 Views