Recent content by HappyFlower

I think my professor wanted it to be a simple question and i am just over analyzing it. -,- I think you are right.

Homework Statement Nanocrystalline Ni-Mo alloys of various grain sizes (d) were prepared by electrodeposition. They showed the following hardness values. Homework Equations Ho=Hi + k/d^1/2 The Attempt at a Solution 1. Plot a hardness vs d^-1/2 Graph 3. Use best fit analysis and calculate...

I fixed it.

Homework Statement A solid disk of radius 23.4 cm and mass 1.45 kg is spinning at 43.1 radians per second. A solid cylinder of radius 12.1 cm and mass 3.33 kg is not spinning. The cylinder is dropped into the center of the spinning disk. After a short time friction has caused both objects to...

It does just that usually the tcostheta and the tsintheta are switched .

Homework Statement a small mass m hangs from a thing string can swing like a pendulum. You attach it above the window of your car as shown in the figure. When the car is at rest the string hangs vertically. What angle does the string make? a) when the car accelerates 1.20m/s^2 b)when the car...

Homework Statement I am given the total time of 4.56s per 10 oscillations but I need to find the average period from this. I feel like I am overthinking this. Homework EquationsThe Attempt at a Solution All I did was divide the time by 10 would that be right?

it just says total force up total force down? etc

the question is asking me for total force in each direction.

Ok i understand my torque now, i am having a problem with the forces. force on A would be up? force by B would be right? force by C would be down? and force by D would be left?. i just want to double check my answer.

:O then i would switch them

The Center of Mass the little cm dot . forgot to include that.

Homework Statement I am trying to understand which forces are up or down and left and right. I am trying to also find out the torque that would be clockwise and counterclockwise on the figure. Homework EquationsThe Attempt at a Solution Original Picture Edited Picture Arrows indicate...

would i split up the tension instead that is in the string?