Recent content by chanella35

but how do i calculate anything when i wasnt given any values of variables in the question?

I absolutely have no idea how to answer this question. If someone could please explain to me what concept this question is trying to test and how to go about answering this question it would be immensely appreciated :) THE QUESTION: Two equal spherical rain-drops are both at a potential...

So the answer would be; y'=1/5 (5)(ln5x)^(1/5-1) y'= (ln5x)^-4/5 is this right?? Thanks for helping :)

the question is: differentiate wiith repsect to x: (ln(5x))^1/5 i differentiated and got : 1/5ln(5x) y'=1/5x I don't think this is correct. The answer should be ln5/5. Can anyone help me? chanella

thank you so muchhh! it was a great help. i actually understand it now.

thanks so much! i can't believe I am actually getting it! :D

Can someone please explain to me how to add and resolve vectors? I've never fully understood the concept :( It would be extremely appreciated. Thanks in advance, Chanella35

1. The tangential frictional force exerted by a band brakes on a rotating metal drum of circumference 0.25m is found to be 20N. If the mass of the drum is 0.4kg and its specific heat capacity is 0.35 kJ/kg K, calculate the number of complete revolutions of the drum are required to increase its...

Thanks so much :D:D:D

this h.w is for 5 extra points on a test on monday if i get them right...please help. 1.AB is a uniform bar of length 5m and weight 60N. It is supprted in a horizontal position by 2 vertical strings P and Q. P is 0.5m from A and Q 1.5m from B. a) What are the tensions in the strings? b) What...

1.AB is a uniform bar of length 5m and weight 60N. It is supprted in a horizontal position by 2 vertical strings P and Q. P is 0.5m from A and Q 1.5m from B. a) What are the tensions in the strings? b) What weight must be applied at A if the tensions in the strings are to be equal? c) What is...