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What does the term terminal velocity mean?

Terminal velocity is the constant speed (in a particular direction) a body reaches when the forces are balanced , i.e. acceleration = 0 m s -2 . An example of this is a ball bearing dropped in oil. ⬆ Resista...
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Answered by Daisy D. • Physics tutor
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A right-angled triangle has base 7cm and height 6cm. Find it's area.

Using the equation Area = 1/2 * base * height: Area = 1/2 * 7 * 6 Area = 21 units.
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Answered by Samuel B. • Maths tutor
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Find the tangent to the curve y = x^2 + 3x + 2 at x = 1

First, we differentiate y = x^2 + 3x + 2 to find the slope of the curve at any given x point: dy/dx = 2x + 3 So at x = 1, dy/dx = 2 + 3 = 5 We know that straight lines come in the form y = mx + c, and in thi...
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Answered by Samuel B. • Maths tutor
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Differentiate: y = sin(2x).

Using the chain rule with u = 2x: y = sin(2x) becomes y = sin(u) dy/dx = dy/du * du/dx dy/du = cos(u) du/dx = 2 So dy/dx = dy/du * du/dx = 2 cos(u).
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Answered by Samuel B. • Maths tutor
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How do I find the molecule from the 1H NMR spectrum?

(Note: proton and 1 H + are the same thing) 1. Draw a table with the following headings: δ / ppm, integral, splitting, observations 2. Count how many peaks there are in the spectrum. (Doublets, triplets etc....
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Answered by Daisy D. • Chemistry tutor
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