Recent content by mysticbms

Got it thanks.

Homework Statement A 50.0 g ball of copper has a net charge of 2.00µC. What fraction of the copper’s electrons has been removed? (Each copper atom has 29 protons, and copper has an atomic mass of 63.5.)Homework Equations 1.00 C× (1proton)/(1.60×10^−19C)=6.25×10^18 protons C = coloumb, the SI...

Thank you! I didn't think of it that way. That will definitely help me moving forward when comparing answers to the book.

This book is killing me. Not the first time it had me thinking I got the wrong answer. What about b?

Homework Statement What is the apparent weight of a 730-N astronaut when her spaceship has an acceleration of magnitude 2.0g in the following two situations. a) just above the surface of Earth, acceleration straight up; b) far from any stars of planets? Homework Equations Fnet=N-mg=ma...

Homework Statement Solve for g in terms of d, t, and theta on an inclined plane. Homework Equations Fnet=ma and d=Vit + .5a*t^2 The Attempt at a Solution Solving for a on an inclined plane I get g*sin theta. Using the equation for constant acceleration d=Vit + .5a*t^2 I solve...

Thanks for the very fast responses by the way. Here's where I'm at now. I drew a FBD, wish I could paste here. I'm getting N = Wy = mg(cos theta) At Fnet=0 Wx=f on an incline. mg(sin theta)=f=muN mg(sin theta)=mu*mg(cos theta) How does this last equation tell me that theta depends on mu...

Homework Statement There are no numbers given, just a question of relation. A box with mass m rest on a board. One side of the board lifts up until the box begins to slide. For this to happen, the angle theta that the board makes with the horizontal floor depends on: m a (g) N muHomework...