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How do you conjugate the verb "manger" in the present tense?

je mange 

tu manges 

il mange 

nous mangeons 

vous mangez 

ils mangent 

AL
Answered by Alice L. French tutor
1943 Views

For the reaction 2H2 + O2 -- 2H2O, how do I give an equation for the equilibrium constant in terms of the concentrations of products and reactants involved?

For any reaction, the equilibrium constant is given in the form: K = [products] / [reactants]

Where [ ] is used to denote the concentration of the species. 

Therefore we can substitute in fo...

LS
Answered by Liam S. Chemistry tutor
23873 Views

Calculate the momentum of a 5 tonne truck at 50km/h

We know momentum= mass (kg) X Velocity (m/s)

So we need to do these conversions:  1tonne=1000kg so 5 tonnes is 5x1000kg = 5000kg 

There are 1000km in a meter so 50x1000= 50000m/h to get this...

CZ
Answered by Callum Z. Physics tutor
2401 Views

Using complex numbers, derive the trigonometric identities for cos(2θ) and sin(2θ).

When dealing with complex numbers and trigonometric functions, always turn to DeMoivre's Theorem that states [cos(θ)+isin(θ)]n = [cos(nθ)+isin(nθ)]. If we set n=2, the we see a combina...

TK
Answered by Thomas K. Maths tutor
8045 Views

Integrate (x+3)^(1/2) .dx

[whiteboard feature does not seam to be working here] 

Here we need to make a U sibstitution. So we take (x+3) and make this equal U so we now have the integral of u^1/2   . dx

In order to s...

CZ
Answered by Callum Z. Maths tutor
4041 Views

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