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What causes the resting potential in a neurone?

A neurone which is not conducting a nerve impulse has a negative charge of -70mV compared to the outside environment; there is a potential difference across the membrane. This is partly caused by movement...

KD
Answered by Katherine D. • Biology tutor
5302 Views

The following taxons are used in the classification of organisms: Phylum; Family; Order; Class; Species; Kingdom and Genus. Please place them in the correct order from largest to smallest.

Kingdom; Phylum; Class; Order;Family;Genus; Species

Here is a handy mnemonic to help you remember (if you like spongebob squarepants!): Krabby Patties C

SG
Answered by Sophie G. • Biology tutor
8756 Views

A ball is hit horizontally at a height of 1.2 m and travels a horizontal distance of 5.0 m before reaching the ground. The ball is at rest when hit. Calculate the initial horizontal velocity given to the ball when it was hit.

Vertically: u=0 ms-1  s=1.2 m  a=9.8 ms-2 s=ut + 0.5at2 Therefore t = 0.49s Horizontally: t=0.49s  s=5.0m speed = distance/time = 5.0/0.49 = 10.2 ...

WW
Answered by William W. • Physics tutor
3493 Views

Given that y = 4x^3 – 5/(x^2) , x =/= 0, find in its simplest form dy/dx.

We are given: y = 4x^3  – 5/(x^2) To find the dy/dx we are going to use the power rule, from the power rule differentiating x^n gives n*x^n-1, so from our equation differetiating x^3 will give 3x^2, but w...

MA
Answered by Mohamed A. • Maths tutor
5702 Views

How can geographers help to tackle climate change?

Geographers bring a range of perspectives and analytical lenses to the table when it comes to climate change; perhaps the grandest problem facing the world today. As the discipline of geography is broadly...

JT
4109 Views

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