The radius R of a sphere is 9.2 cm. Calculate the sphere's surface area A Use...
The diameter D of a sphere is 14.8 m. Calculate the sphere's surface area A Use the value 3.14 for t, and round your answer to the nearest tenth en
Consider a hollow metal sphere of inner radius r=16.5 cm and outer radius R-20.5 cm. The sphere is not charged, but there is a point charge of q-253 nC at the centre of the sphere (a) Calculate the charge density on the sphere's outer surface (b) Calculate the electric field strength at the sphere's outer surface. PAPER SOLUTION Solve the problem on paper first, including all four IDEA steps. You will become a better physicist that way! Have you finished...
Charge is spread uniformly over the surface of a sphere of radius R. The potential at the sphere's center is V. Find an expression for the net charge Q on the sphere. Express your answer in terms of the variables R, V, and the Coulomb's constant k.
Find the average surface area of a spherical balloon when the radius changes from r = 4 to r = 4.05 cm. The surface area formula for a sphere with radius r is A = 4πr^2 . Round to two decimal places.
7. A puck is placed in the inner surface of a sphere of radius R = 2.75 m. Find the angular speed of the sphere spinning with respect to its vertical axis for the puck to remain at rest a distance h=1.65 m below the sphere's center. The coefficient of static friction between the puck and the surface of the sphere is .5.
Parametrize the surface of a sphere of radius R center at the origin using Knowledge of surface integral Use the parametrization to set up the integral to Compute the surface area of a sphere of radius R. and evaluate the integral
A solid sphere of radius R is placed at a height of 36 cm on a 15∘ slope. It is released and rolls, without slipping, to the bottom. From what height should a circular hoop of radius R be released on the same slope in order to equal the sphere's speed at the bottom?
A sphere of radius r has surface area A = 4πr2 and volume V = (4/3) πr3. The radius of sphere 2 is double the radius of sphere 1. (a)What is the ratio of the areas, A2/A1? (b)What is the ratio of the volumes, V2/V1?
Question 3 (5 points) A cylindrical paint can with a radius of r and a height of h has a surface area of S = 27r2 + 27rrh. Use calculus to estimate the change is surface area that results if the radius increases from 20 to 22 cm and the height decreases from 50 to 46 cm. (Round your final answer to the nearest tenth of a square centimeter.) Question 4 (5 points)
two parter! THANKS FOR THE HELP 1) A conducting sphere of radius 13.0 cm has a net charge of 2.2 x 10-8 C. What is the electric field at the surface of the sphere? Give your answer in N/C (equivalent to V/m). 2) A conducting sphere of radius 16.0 cm has a net charge of 2.8 x 10-8 C. If V=0 at infinite distance, what is the electric potential at the sphere's surface? Give your answer in volts.