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What is the difference between a scalar and a vector?

A scalar is a value that has only a size (otherwise known as magnitude), not a direction. A scalar is unaffected by the direction in which the object concerned is travelling. Examples include kinetic energy,...
ST
Answered by Sam T. • Physics tutor
5911 Views

The polynomial p(x) is, p(x)= x3-5x2-8x+48.Use the Factor Theorem to show that (x + 3)is a factor of p(X)

First of all it is using the factor theorem. so need to use that to show it is a factor We do this by P of (-3) should = 0 So substitute x with -3 p(-3)= (-3)3 - 5 (-3)2- (-3)8 + 48 = 0 -27-45+24+48=0
MB
5900 Views

How should I write an essay introduction, and is a conclusion just the same thing?

For IB English Literature, and indeed for all essay-based subjects at this level, an introduction is vital, as it sets out your aims and interests to the examiner while also providing insight into your metho...
BS
2456 Views

Find the area R under the curve when f(x)=xcos(x) between the limits x=0 and x=2

After careful consideration, we can see the function f(x) is the product of two individual functions. Usually, to find the area under a curve we integrate its function between a set limit. Given our situatio...
AA
Answered by Abraar A. • Maths tutor
3552 Views

A chemist mixes together 0.450 mol N2 with 0.450 mol H2 in a sealed container. The mixture is heated and allowed to reach equilibrium. At equilibrium, the mixture contains 0.400 mol N2 and the total pressure is 500 kPa. Calculate Kp.

balanced equation: N 2 (g) + 3H 2 (g) <---> 2NH 3 (g) Both reactants and products are gases, therefore it affect Kp value. This equation reaches equilibrium as it is in a "sealed container", ...
NG
Answered by Nayan G. • Chemistry tutor
15582 Views