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A particle is in equilibrium under the action of four horizontal forces of magnitudes 5 newtons acting vertically upwards ,8 newtons acting 30 degrees from the horizontal towards the left,P newtons acting vertically downwards and Q newtons acting to right

first of all we need the resolve the diagonal force into its horizontal and vertical components. Using trigonometry you can deduce that the horizontal component equates to 8Cos30 and the vertical componen...

AA
Answered by Ali A. Maths tutor
5471 Views

How is an action potential transmitted across a synapse?

Looking at a cholinergic synapse:The action potential arrives at the presynaptic knob. This causes voltage-gated calcium ion channels to open, and calcium ions to diffuse into the presynaptic knob.The inf...

MM
Answered by Megan M. Biology tutor
2644 Views

Solve algebraically the simultaneous equations: x^2 + y^2 = 25, y - 3x = 13

Steps:Number both equationsUsing equation 2, solve for y in terms of x.Substitute this answer into equation 1 so that your equation only includes x terms and no y terms.Solve equation 1 for x. (This will ...

RM
Answered by Rowena M. Maths tutor
1903 Views

Rat poison is not always an effective rodenticide and will reduce in effectiveness with age. Explain why

Any type of poison is not guaranteed to eradicate rats entirely. This is due to genetic mutations allowing an individual to be immune to certain types of toxins. Whilst the population may be eradicated, i...

CD
Answered by Charles D. Biology tutor
2057 Views

"Evaluate the causes of the Korean War."

Students should consider that the question implies that there is more than one cause here, and so should demonstrate some form of knowledge that perhaps the causes interconnect, and that the war wa...

LK
Answered by Lucy K. History tutor
2291 Views

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