Friday
December 13, 2013

# Posts by Chan

Total # Posts: 97

Physics
A simple pendulum has a period T on the surface of planet Earth. When taken to the surface of planet X, the same pendulum has a period 2T. a) If the radius of planet X is 1/2 the radius of Earth, what is the mass of Planet X, relative to the mass of Earth? b) Suppose a vertica...

Calculus ll
Find the radius of convergence and interval of convergence for ‡”(from n=1 to ‡ ) (-1)^n-1 multiplied by n(x-1)^n/(n^2+1)2^n thank you for your help

language
what part of speech is has passed

Math
x(x-3)+4= 3x^2 - 2(x+8) 3

math
(2x^3)-2 3

Science
much force is Mike applying to the 1000 kg car to make it accelerate at a rate of .05 m/s2? I need help understanding this.. I'm really bad at science...>.<

Chemistry
How do I calculate number of moles of K2C2O4 in 20mL of a saturated (300g K2C2O4.H2O per liter) solution....

physics
Hi! could anyone help me to solve this problem please. Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.60 µC charge. (A = 1.60 µC, B = 7.20 µ...

physics
Hi! could anyone help me to solve this problem please. Thank you. Question:An electron has a speed of 0.68 c. (a) Find the speed of a proton that has the same kinetic energy as the electron. (b) Find the speed of a proton that has the same momentum as the electron.

physics
Hi! could anyone please help me with this problem. Thank you so much. Q: The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air.

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