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Which of the following are usually found on the Central Processing Unit(CPU) of a personal computer?

Hard disk drive - No
Control Unit - Yes
RAM - No
Arithmetic Logic Unit (ALU) - Yes
BIOS - Yes
Registers - Yes
ROM - No

2138 Views

Rearrange the following to make 'W' the subject: aw + 3 = 4(bw + 5)

aw + 3 = 4(bw + 5)    Let's get rid of those brackets...
aw + 3 = 4bw + 20    Now we rearrange...
aw - 4bw = 17        Factorise...
w(a - 4b) = 17        Final rearrange...
w = 17 ...

Answered by Jack M. • Maths tutor

3604 Views

What are the properties of a giant covalent structure?

Giant covalent structures are made up of many covalent bonds between atoms. They have high melting points because it takes a lot of energy to break the strong covalent bonds between the a...

Answered by Phoebe T. • Chemistry tutor

42484 Views

What are the differences between diffusion and osmosis?

Both these processes involve the movement of molecules from an area of high concentration to low concentration. They are also both passive processes, so happen without the use of chemical energy. However,...

Answered by Phoebe T. • Biology tutor

4104 Views

The Tory government was no more liberal from 1822-1827 than 1812-1822. Assess the validity of this statement.

Introduction - Give background to why liberalism was a relevant concept, placing its ascent in the broader context of socio-economic change. Present a clear and coherent sense of your argument, whilst als...

Answered by Richard C. • History tutor

2340 Views