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Question: Particle P of mass m and particle Q of mass km are moving in opposite directions on a smooth horizontal plane when they collide directly. Immediately before the collision the speed of P is 5u and t...
XW
Answered by Xudong W. • Maths tutor
5173 Views

Explain why a simple electric motor continues to turn in the same direction when there is a current in the coil (6 marks)

This question would be illustrated with the correct diagram to enhance understanding. The question is for 6 marks, so 6 key points need to be made. When the current is switched on, a magnetic field is genera...
LJ
Answered by Luke J. • Physics tutor
21716 Views

Integrate (3x^2 - (1/4)x^-2 + 3) dx

3x 2 -(1/4)x -2 +3 Split the problem into three separate terms and integrate independently.With any term where x is to the power of something, divide the coefficient by the value of the power plus 1 .e.g. 3x...
LL
Answered by Lucy L. • Maths tutor
5104 Views

What is 4536000 in words and what is that number to 3 significant figures?

In words: four million five hundred and thirty six thousand 3 S.F : 4540000
BW
Answered by Billy W. • Maths tutor
4494 Views

a) Name a hormone secreted by the ovaries (1 mark). b) A female takes a contraceptive pill that increases the body's levels of progesterone. Explain what effects this has on the female's body and what effects that it has on her other hormones (3 marks)

a) Oestrogen or Progesterone b) FSH stimulates follicles in the ovaries to mature while progesterone has a "maintenance" function as it maintains the lining of the uterus. Progesterone also has an ...
TH
Answered by Tom H. • Biology tutor
3416 Views