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Traduisez la phrase suivante: J'ai toujours aimé la musique de Katy Perry

Answer - Ask student what they got first and work outwards. Answer - I have always loved Katy Perry's music Discuss - Why the answer is not I always loved and how this answer would change the meaning. Say th...
JB
Answered by Jennifer B. • French tutor
2519 Views

What is the point of differentiation?

Differentiation is a very useful concept; informally it tells us how 'fast' something is changing. A real-life example is given by the first and second derivatives of distance with respect to time: the first...
JH
Answered by Jake H. • Maths tutor
11405 Views

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
3597 Views

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
2226 Views