Mors

This page lists questions and answers that were posted by visitors named Mors.

Questions

The following questions were asked by visitors named Mors.

Answers

The following answers were posted by visitors named Mors.

HW6_1A : 2*d_A^3*pi*t*G/(3*L )

HW6_1B: (2*Q*L^2)/(G*pi*t*d_A^2*(L+x)^2) Why? You have to start by describing the linear function of diameter/radius variations (whatever) r(x)=(d_A/2L)*x+d_A/2 d_A(x)=(d_A/L)*x+d_A We can obtain I(x)=pi*t*d_A^3*(x+L)^3/(4*L^3) We know that gamma=r(x)*(d_...

q(x)=q0xL ? Is it q(x)=q_0*x*L (linear) or q(x)=q_0*L (linear, but constant)? What is the relation between x and L? Write this precisely, please

q(x)=q0xL ? Is it q(x)=q_0*x*L (linear) or q(x)=q_0*L (linear, but constant)? What is the relation between x and L? Write this precisely, please

I didn't see the drawing (so I don't know the direction of t0), but: Q2_1_3: tau max=|tau min|=(3*t_0*L)/(pi*R^3) r tau max = R (it's obvious) x tau max =3*L Q2_1_4: phi max=(9*t_0*L^2)/(8*pi*G_0*R^4) x phi max=3*L/2 dphi/dx is a derivative of phi and it'...

What about the Q2_2? Provide me a drawing or a better (and EXACT) description of this problem

Q2_2: I've found it by myself Here, the solutions Q2_2_1 -(q_0)/(6*L)*x^3 Q2_2_2 46*E_0*(pi*R_0^4)/4 Q2_2_3 a) -(q_0*x^3)/(69*L*E_0*pi*R_0^4) b) -(q_0)/(276*L*E_0*pi*R_0^4)*(x^4-L^4) Q2_2_4 -5.8 Q2_2_5 a)50.9 b)305.6 Now, go and f# yourselves, lazy sob's...

Redraw the Axy coordinates system on a piece of paper, draw x horizontally and y vertically. Place the ball B on your drawing. x position is easy to find, y is a function of 45deg and L. To find vrel: Look at the drawing in the exercise and draw the same...

to find vB: Find the center of rotation of the disk. Take the distance between the center you've just found and the center of the ball. Ask yourself a question: How to find a linear velocity of a point on the rotating disk (it's a function of omega and L)...

to find aB: take the vB and differentiate it: ask yourself a question, which factor changes in time? Use chain rule. Don't forget about vectors i and j. Do they change in time? What do they give when differentiated? (see Derivative of a vector in a rotati...

A partial answer: [vvv][.][jiskha][.][com/display][.][cgi?id=1384802640] "Some serious direction on the third part would be great." - I totally agree

The quizz is rather easy, but the third part of this question is literally killing me. I know that it has to be terribly simple, but i can't find the good answer (only one try left, and this question is worth 4% of the total course score) here's the image...

i will not give the simple answer, but look at one of the exercises from previous problem sets or V6-3 Quiz Review 1-3 and do exactly the same things. ?Choose correct Free body diagrams, find relation between x and y, write your equations of motion for th...

Ha, I got it! It's easy. They're asking about the minimal angular velocity of the disk so the ball sticks to the outer wall of the slot. If you answered for Q1-2 Ground Frame Acceleration, you can easy find the right answer for this one, too. -Forget abou...

Watch out: w > [something] and [something] has positive sign