Top answers

Can you please explain when I have to use each case?

As we know, every noun has a gender, but that gender also has four different variations, depending on where it lands in a sentence. 2. The four cases are: nominative, genitive, dative and accusative a) nomin...
SW
Answered by Sonja W. • German tutor
2042 Views

How do I remember the common values of cosx, sinx and tanx?

To remeber the equations us SOH CAH TOA. This is Sinx = Opposite/Hypotenuse, Cos x = Adjacent/Hypotenuse and Tanx = Opposite/Adjacent. For values x=pi/3 and x=pi/6 always start by drawing an equilateral of s...
BL
Answered by Becky L. • Maths tutor
3938 Views

Differences between Sn1 and Sn2 reactions

--> Sn 2 : It is a one-step mechanism which is considered to be Sn 2 where two species are involved in the rate determining step. Both species account for the overall rate of the reaction where the rate e...
LS
Answered by Lucy S. • Chemistry tutor
5541 Views

2 resistors of resistances 150 ohms and 5000 ohms respectively are in series with each other. They both are also in parallel with a 1000 ohm resistor. What is the total resistance?

Firstly, you should start by working out the total resistance for the 150 ohm and 5000 ohm resistors which are in series : -In series the total resistance is given as the sum of the resistance of each indivi...
GJ
Answered by Gaggan J. • Physics tutor
2753 Views

Explain what causes the conduction of impulses along a non-myelinated axon to be slower than along a myelinated axon.

In myelinated axons, the myelin sheath that surround the membrane prevents action potentials forming, hence depolarisation only occurs at the nodes of Ranvier (breaks in the sheath, exposing the membrane, at...
RO
Answered by Ruby O. • Biology tutor
10835 Views