Thursday
December 12, 2013

# Posts by will

Total # Posts: 356

physics
Waves on a particular string travel with a speed of 17 m/s. By what factor should the tension in this string be changed to produce waves with a speed of 102 m/s

Chemistry 2
How many cans ( each containing 14.0 oz of propane) would be required to convert 41.7 lbs of ice at -15.0 C to water at 100 C ( the boiling point at standard pressure)

Trigonometry
The tires on a car have radius 14 inches. Find the angular speed of the car tire in revolutions per second when it is traveling 70 mph. Find the angular speed at 80 mph. The tires on a car are 15 inches. Find the linear speed of the car when the tires are rotating at 900 revol...

Geometry
Y is the midpoint of segment XZ. If XZ is 64 units long, how long is

Physics
Ok Here are my answers, if you can give me any more help it would be greatly appreciated. 1. 1000+1200=2200 2. Fw = ma 1000*9.8 m/s^2 = 9800 1200*9.8 m/s^2 = 11760 Fw = 21,560 3. Momentum = mv 1000*7 + 1200*6 7000 + 7200 Momentum = 14,200 kg m/s 4. 14,200 / m1+m2 14,200 / 1000...

Physics
Sorry, I can do part 1 and 2 relatively easily. However, I suck at physics and was honestly hoping to receive an answer like the one you gave me. I just wanted to know how to do it, not necessarily get the answer. Thanks

Physics
A 1000 kg car is moving at a constant speed of 7 m/s when it hits the back bumper of another car with 1200 kg of mass moving in the same direction at a constant speed of 6 m/s. As a result of the collision both bumpers get coupled. Show all work and calculations. 1. What is th...

Economics
Supply is Demand is Scenario A elastic elastic Scenario B elastic inelastic Scenario C inelastic elastic Scenario D inelastic inelastic Which scenario describes the market for oil in the long run? A. A B. B C. C D. D

Economics
Sandra purchases 5 pounds of coffee and 10 gallons of milk per month when the price of coffee is \$10 per pound. She purchases 6 pounds of coffee and 12 gallons of milk per month when the price of coffee is \$8 per pound. Sandraâ€™s cross-price elasticity of dema...

Economics
Which of the following would not interfere with market equilibria? A. a minimum wage B. a rent control C. a non-binding price floor D. a binding price ceiling

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