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Describe one method by which the distance to stars from Earth is measured, and one modern improvement to this method which increases its accuracy.

One such method is Stellar parallax. When observing stars in the night sky, stars which are further away from Earth appear to 'move' less across the sky as the earth rotates. Using this, stellar parallax ...

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Answered by Harry H. Physics tutor
1333 Views

The equation of a curve is y=(x+3)^2 +5, what are the co-ordinates of the curve's turning point?

Differentiate y with respect to x:dy/dx = 2(x+3) = 2x+6When the above equation is equal to 0, this is where the turning point of the curve is.2x+6 = 02x = -6x = -3Therefore, at x = -3, the curve has a tur...

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Answered by Harry H. Maths tutor
2937 Views

Name two negative impacts of the use of cognitive behavioral therapy in treating depression

One negative impact of the use of cognitive behavioral therapy is the fact that its effectiveness can often depend on the strength of the relationship between the therapist and the client. If the relation...

MB
Answered by Maya B. Psychology tutor
1204 Views

How do I rearrange and make y the subject in equations such as "(y/4) - X = 1"?

The aim is to finish with an equation that looks like "y = .....". We want Y and X on separate sides.The main thing to remember is that whatever you do to one side of the equation, you also do t...

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Answered by Dulcie S. Maths tutor
2661 Views

Explain active transport and give an example to demonstrate this in both plants and animals

Active transport is the movement of a substance from an area of low concentration to an area of high concentration. This process requires energy, usually in the form of ATP, as the direction of movement i...

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Answered by Katie M. Biology tutor
13853 Views

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