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F=Eq= 5x10^2 x 1.6x10^-19 = 8x10^-17 N

Kinetic energy theory: deltaEc= Fxd =1/2mv^2

thus v= squareroot(2xFxd/m)

v(proton) = squareroot(2x8x10^-17x1x10^-2/9.1x10^-31)=1.3x 10^6 m/s

Depending on the competence level/ preferred learning method of the child I would teach verbs slightly differently. For example, repetition through games, songs, acrostics, association with pictures etc. ...

The first step in answering any maths question is to identify key words or key information. Key information is area, length and width. We have been told that the total area is 56cm2. We know that area is ...

Surds can be simplified if the number in the square root has a square number as a factor. It is also worth remembering that SQRT(ab) = SQRT(a) x SQRT(b). So if you combine these two points, lets look at h...

There are many acceptable definitions of "external costs" but if you have the basic understanding of what it is then you should be fine. Firstly you know that it is a negative effect/impact by &...