There is actually a second and third part to this question:
b) Find potentials at points in the regions: r_1 < a, a < r_2 < b, b < r_3 < c, and r_4 >c
For r1 < a,
I use the formula
V_o - V_{r_1} = \int_0^r E(r_1)dr
E(r_1) = \frac{\rho*r_1}{3\epsilon_o}
V_o - V_{r_1} =...
Homework Statement
A uniformly charged ball of radius a and a total charge -Q is at the center of a hollow metal shell with inner radius b and outer radius c. The hollow sphere has a net charge +2Q. Find the magnitude of the electric field in the regions: r_1 < a, a < r_2 < b, b < r_3 < c, and...
Closest approach of particle problem - Please help!
Homework Statement
A proton (q = 1e, m = 1u) and an alpha particle (q = +2e, m = 4u) are fired directly toward each other from far away, each with a speed of 0.01c. What is their distance of closest approach, as measured between their...
It helps to draw a FBD(free body diagram) of the block and write all the forces acting on it. I see 4 different forces, can you? (One of the force is at an angle, so that can be broken up into x and y components)
Well, I see that m_A + m_B comes from the two blocks on top of each other because block A is at rest relative to block B.
In that case:
T - f_k = (m_A + m_B)a
T - \mu_kN = (m_A + m_B)a
T - \mu_k(m_A + m_B)g = (m_A + m_B)a
Plugging T with the equation that I had:
T_c = m_cg - m_ca since...
Hi, I needed to calculate this for my quiz couple days ago, but I didn't get the right answer. Professor told me that I set it up correctly, so I don't understand why I got it wrong. Can anyone help? I resolved this problem, so I just need to verify the answer. Thanks
Q: Block B, with mass...
I just needed help understanding the concept of this chemical reaction
Na_2SO_4 (aq) + Ba(NO_3)_2 (aq) \rightarrow BaSO_4 (s) + 2NaNO_3 (aq)
This is the conventional equation, and I wrote the net ionic form to be:
SO_4^{2-} (aq) + Ba^{2+} (aq) \rightarrow BaSO_4 (s)
However, the answer in...
I needed to know if anyone can help me solve a problem.
I am supposed to calculate the final temperature after mixing 250 mL of coffee at 80 degrees C with 250 g of ice at 0 degrees C.
The heat of fusion for ice is 6.01 kJ/mol
The ice undergoes a phase change, but I don't know how to...
Dimethylglyoxime (DMG) is a carbon-hydrogen-nitrogen-oxygen compound with a molecular mass of 116.12 u. In a combustion analysis, a 2.464-g sample of DMG yields 3.735 g CO2 and 1.530 g H2O. In a separate experiment, the nitrogen in a 1.868 g sample of DMG is converted to NH3(g), and the NH3 is...
Sorry, I had another question, and that equation dealt with the previous question. I didn't know that I didn't have to use this equation for this problem. In that case, what is the first step to finding how much one person produces CO2 in one breath? I thought that PV=nRT was involved but I...
Hi, I have an assignment from my Chemistry class which is supposed to be done during my Spring break.
The question is to CALCULATE the annual production of CO2(carbon dioxide) in metric tons by all humans in the world from breathing.
The assumptions are:
1. The composition of exhaled breath...