Search our library of A Level questions

Top answers

All subjects

A Level

Explain, using appropriate laws of motion, why the air exerts a force on the engine in the forward direction.

This question is taken from AQA 2016 question 1 part 2, http://filestore.aqa.org.uk/sample-papers-and-mark-schemes/2016/june/AQA-74071-QP-JUN16.PDF

The force is acting on the air by the engine. By ...

Answered by William L. • Physics tutor

6880 Views

Describe how a competitive market would react to excess supply.

In competitive market, there is no governement interference and a lot buyers and sellers, so the market can operate equilibrium. When there is excess supply, there are too many goods which are not purchas...

Answered by William L. • Economics tutor

5648 Views

Graph question Q1a in AQA 2016

This is the link for the question, http://filestore.aqa.org.uk/sample-papers-and-mark-schemes/2016/june/AQA-ELEC1-QP-JUN16.PDF

The diagram shows the relationships bewteen letters. C and D are the i...

Answered by William L. • Electronics tutor

1393 Views

Express 9^(3x + 1) in the form 3^y , giving y in the form ax + b, where a and b are constants.

9^ (3x + 1)

We know that 3 to power of 2 equals 9. 3x3 = 3^2 = 9,

= 3^ (2 * [3x + 1])

We simply the term because 2 * [3x + 1] = 6x + 2

= 3^ ( 6x + 2)

This term is in ...

Answered by William L. • Maths tutor

4887 Views

Describe the Free fantasia style used by C.P.E Bach in the late 18th Century.

Free Fantasia as a style became highly popular in the late 18^th Century, with C. P. E. Bach being a prominent composer withint this style. However, he wrote very little upon this style and rare...

Answered by Thomas H. • Music tutor

4035 Views