Recent content by b_andries

So the upward force is 400cos30° The normal force is = mgcos30° + 400sin30° So than my equation becomes = 400 cos 30° - (343 cos30° + 400 sin30°).µ - 343 sin 30° = 35.0,56 right? than µ = 0,312

Aha i think i got it Fpush should be Fcos30° instead of F/cos30° And the horizontal force should add up to the normal force!

The horizontal force is 400 but than the horizontal upward force must be 400/cos30° no?

0,5 . 35 1² + 0 = 0,5 . 35 1,8² + 35.9,81.2 The change in KE and PE is = 726J 726J = F.x F= 726/2 = 363N And then I'm stuck because I don't see any second force affection the normal force :S

Fpush - (Ffriction + Fgravity) = m . a 400/cos30° - 343 cos 30° µ - 343 sin 30° = 35 . 0,56 µ = 0,91 I find only 1 Force affecting the normal force that is mg cos30°

Hi! A block with mass 35 kg is pushed upward with a horizontal force of 400N along a slope at an angle of 30 °. The block makes a displacement of 2 meters, where it's speed changes from 1m/s to 1,8m/s. What is the Coefficients Of Friction? 1) 0.312 2) 1.099 3) 0.039 4) 1.31...

P(1/V)= nRT 1/V (function P with respect to 1/V) So here nRT represents the slope of the graph A larger Temperature gives a larger slope, which is what diagram C shows So diagram C is correct. P(T) = nR/V T(function P with respect to T) So nR/V represents the slope of the graph A...

Ok thanks, Now i know what I've done wrong

What is the equation that relates P, V and T for an ideal gas? P.V = n.R.T What is the relationship between P and T if V is constant (first graph)? ==>T instead of V is constant here no(same values on x-axis)? P.V = n.R. = constant so this should be wrong because there is a slope What is the...

Hi guys, Can someone explain me please how to find the following question? Which diagram represents the behavior of an ideal gas the most? I know it's C but I don't know why. They all seem to represent the behavior of a ideal gas. But why C mor than the others? Thanks

ok thanks than I understand it :)

We have 2 solenoids : S1 and S2 The coils are wind up as close as they can get and both have length L. They are both made from the same material and have the same length. They are both connected to a DV source. S2 has a wire with a double diameter The ratio between B1 and B2 then is? I...

Hi, An amount of ideal gas undergoes the folowing cycle process in the following graph: This process can be presented by the following PV-graph : The answer has to be the upper graph but why can't it be the lower graph ? Thank you!