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State three differences between the structure of DNA and the structure of RNA

When comparing the structure of DNA and RNA (draw structure), DNA is double stranded whilst RNA is single stranded. Lets now discuss the molecular structure of DNA and RNA. DNA consists of nitrogen bases A, ...
SR
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A crane is attached to one end of a steel girder, and lifts that end into the air. When the cable attached to the end of the girder is at 20 degrees to the vertical, the tension is 6.5kN. Calculate the horizontal and vertical components of this force.

6.1kN vertically up 2.2kN horizontally to the right
AR
Answered by Alex R. • Physics tutor
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What is the difference between a Scalar and a Vector?

A vector is any physical quantity which has a direction and a magnitude, whereas a scalar is a physical quantity that is not directional (magnitude only).
AR
Answered by Alex R. • Physics tutor
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Why should we not overprescribe and overuse antibiotics?

Antibiotics are used for killing bacteria and therefore, it can act as a selection pressure. This means that the bacteria can mutate, in order to avoid being killed and this would be a favourable mutation, a...
NR
Answered by Niva R. • Biology tutor
3555 Views

How do I find the inverse of a 3x3 matrix?

We start by finding the determinant of this matrix using the cofactor method (I.e for each entry in the matrix, cross out the row and column in which it resides and find the determinant of the matrix formed,...
RR
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