Monday
December 9, 2013

# Posts by Brent

Total # Posts: 55

world history
Gain from Trade and Location. thats all i know so far

world history
What are at least 6 themes about the Nile River Valley Civilization? and what do those themes have to do with the river valley civilization?

Physics
I figured out what I was doing wrong. 23cycles in 45.9s give the frequency. Not the period. I was using the frequency as T.

Physics
An engineer has an odd-shaped 11.4 kg object and needs to find its rotational inertia about an axis through its center of mass. The object is supported on a wire stretched along the desired axis. The wire has a torsion constant κ = 0.428 N·m. If this torsion pendul...

physics
If it is "at rest" that implies it is sitting there not moving therefor not accelerating. Weight is simply mass x gravity (W=mg) where g~9.81(m/s^2). Newtons Second law Net Force = mass x acceleration (F=ma) reveals if the box has a downward force of W, and is not mo...

physics
Chitra has a mass of 70 kg. She is jogging at a velocity of 7 m/s. What is her momentum?

Physics
A cyclist and her bicycle have a combined mass of 75.0kg. If the frictional force acting against the motion of the bicycle is -23.5N, what force must the cyclist apply to maintain a constant velocity?

Physics
Find the acceleration produced by a force of 1650N against a friction force of 500N while pushing on a mass of 6.50kg.

Physics
A cannon at ground level launches a cannon ball at an angle of 30 degrees with a velocity of 28.3m/s. How far will the cannon ball travel?

Physics
A sports car accelerates from a standing start to 85mi/h in 4.61s. a. Find its acceleration in feet per second squared. b. How many feet does it travel in that time?

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