Can you please explain this to me? I have an answer but with no explanation and I would like to know how we came up with the answer v= sqrt((b/a)^1/4). Thank you in advance!
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Can you please explain this to me? I have an answer but with no explanation and I would like to know how we came up with the answer v= sqrt((b/a)^1/4).
Thank you in advance!
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Solved in 2 steps
- Case a<r<b : your dA is πr^2 but when you rearrange for E your denominator is 2πε0r^2 where did the 2 come from ? Thanks :)Use a scientific calculator to calculate Delta L_fS for D1 = 20 meters and D2 = 40 meters. I can't believe I have to ask this, but I can't even figure out how to input that in the calculator.A = 2 X 1025, B = 4.5 X 10-10, C = 3 X 10-6. AB/C = ? (2) ACB = ? (3) The Moon is approximately 400,000 km from the Earth. An atom of a certain element has a diameter of 4 X 10-8 cm. Given 1 km = 1,000 m and 1 m = 100 cm, about how many atoms of this element can be lined up between Earth and Moon? (4) A spherical planet has a radius of 2,000 km and a mass of 1025 kg. Calculate its density (mass/volume) in kilograms per cubic meter. (5) How many of the atoms in Question (3) can fit within a spherical planet with a diameter of 2 X 104 km? (6) An asteroid’s radius is 200 m and its distance from Earth is 107 km. What angle in degrees (θ) will it subtend? Use the equation θ = 57 (diameter) / distance
- Using your values for 7, calculate the average period Ibar (I) and its standard error. How does the error on the average period /bar (T) compares to the errors on the periods, I? What can you do to reduce the uncertainty on /bar (T)? What can you do to reduce the uncertainty on 7 ? Peried Trial T AT 4 141 $ 10.69 +α-0.5 2 10.60 + or -0.5 2 10.40 +α-0.5 10.43 +α-0.5 S 10.37 + or -0.5 Using your values for T, calculate the average period 7 and its standard error How does the error on the garage period compares to the errors on the periods, 7? What can you do to reduce the uncertainty on 7? What can you do to reduce the uncertainty on T7A yoyo of radius R and mass M is released from rest with the string vertical and its top end fixed up a support as shown below. How fast is the center of mass of the yoyo moving when it has fallen a distance of 47 cm. Ignore the mass of the string and express your answer if m/st Eg=15N and Eo=l", Find Fymn The Smallest Possible Vahek Of minj ty in N Find Fxmar The largest possible Value or Fx, in N max