Thursday
May 23, 2013

Posts by CHELsea


Total # Posts: 632

math
I have 50.00 to buy 50 animals. Chickens are .50, cows are 2.50,and birds are 5.00. How many of each animal can i purchase?

Physics! Please help me!
An oscillating block-spring system has a mechanical energy of 5.1 J, an amplitude of 0.81 m, and a maximum speed 1.6 m/s. Find the spring constant k of the spring. What is the mass of the block? What is the frequency of oscillation?

Physics! please help me!
A 0.98 N bird descends onto a branch that bends and goes into SHM with a period of 0.46 s. Determine the effective elastic force constant of the branch.

Math
A tower stands on a 20 degree slope. From a point 45 m directly up the slope. The angle of elevation of the top of the tower is 10 degrees. How tall is the tower?

math
is would be 5 square roots of 10.

social studies
why did the maya civilization dissapear

physical
A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s².)

chemistry
If 22.4 dm3 of steam react with MgO, calculate the mass of the product that will form.

Chemistry
How many cubic decimeters of oxygen are needed to react with sulfur to produce 5.00 * 103 cubic decimeters of sulfur dioxide?

Physics
The orbit of a Moon about its planet is approximately circular, with a mean radius of 2.24 × 10 8 m. It takes 35.5 days for the Moon to complete one revolution about the planet. Find the mean orbital speed of the Moon. Answer in units of m/s Find the Moon’s centripe...

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