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Why is it important to regulate body temperature? What is the role of our skin in regulating our body temperature?

Our skin is responsible for ensuring that, when our surroundings get too hot, our body temperature doesn't spike up to unhealthy levels. Likewise, when our surroundings get too cold, our skin plays a role in...
KA
Answered by Kartika A. • Biology tutor
85060 Views

How do metals conduct electricity?

Metallic bonding forms a closely packed lattice structure of positive ions with delocalized electrons (these are the electrons of the outer shell of the metal atom). Because these electrons are delocalised, ...
OA
58827 Views

Why don't atoms have an overall charge?

Atoms are made up of three types of particles: protons, neutrons and electrons. The relatives charge on each of these particles are as follows: protons = +1, neutrons = 0, electrons = -1 Because neutrons are...
OA
22869 Views

Eleri invests £3700 for 3 years at 2% per annum compound interest. Calculate the value of her investment at the end of the 3 years. Give your answer correct to the nearest penny.

This question is a classic example of a problem which might catch some students out, if due care is not implemented. Eleri is investing £3700 at 2% per annum compound interest. This means that the sum of the...
OS
Answered by Osian S. • Maths tutor
7582 Views

How do I solve 7x – 8 = -3x + 2?

I would always approach this type of question methodically in the same way each time to minimise panic in exams. 1. Collect the like terms together (10x = 10) 2.Divide to find the solution (x=10)
MP
Answered by Madeleine P. • Maths tutor
6839 Views