Physics (maybe it's just math)
A sphere of copper is subjected to 89.7 MPa of pressure. The bulk modulus is 130 GPa. a) By what fraction does the volume of the sphere change? b) By what fraction does the radius of the sphere change? for a) I have dV/V = 0.00069 - this is correct. for b) the area I have 4/3 ...
initial momentum = final momentum m1v1(initial) + m2v2(initial) = m1v1 (final) + m2v2 (final) Initial Final m1 = m m1 = m v1 = 280 m/s v1 = ? m2 = 16m m2 = 16m v2 = 0 v2 = ? Plug them in and cancel out your ms and solve for v1 or v2. Then go back and plug that solved value int...
35 cents to $2.20. Whats the question?
Grand Canyon University
Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
Would Wells Fargo's market structure be Monopolistic competition?
I found the average acceleration of earths orbit around the sun over a period of 5 days by calculating delta theta and dividing by radius and 1/T. I got the right answer but as I am studying for my test, I am seeing the units do not work...does this make sense? Can someone der...
In the experiment 0.500 g of copper reacted with oxygen to give 0.563 g of copper oxide. What is the empirical formula of the oxide expressed as a chemical formula?
How do I find the instantaneous acceleration of the earth orbiting the sun? Everything I am trying is incorrect. I am using 1 second as my time and get 1.99E-7 rads/second. First I tried: acceleration = theta x t / radius Where: theta = 1.99E-7 rads radius = 6.371E6 Then I tri...
Trying to find escape speed from a planet and I am given the radius and gravitational field - g = 18 m/s^2. I have the conservation of energy, final energy is zero, I have the formula for V = sqrt 2GM/r, u = mgy. I have too many unknowns...I can't solve anything. What am I...
hmm. I'm a bit stumped. Why did the instructions say it is not a simple mol/L calculation? You must have the quantity of the acetone/impurity mix? At that point, you could simply say that you have so many grams / L of acetone. But, since it's not a straight calculation...