Friday
December 13, 2013

# Posts by Sylvia

Total # Posts: 113

Chemistry
So the limiting reactant is aluminum? Thank you so much!

Chemistry
2Al + 3CuSO4 --> + 3Cu + Al2(SO4)3 * copper(II) sulphate is a hydrate 1.2g of CuSo4 50mL of water 1.0 g of aluminum foil What is the limiting reactant?

Physics
Could a simple machine such as a lever, a pulley system or a hydraulic jack be considered a heat engine?

Physics
Which of these types of motors or engines are heat engines? a. an automobile engine b. an electric motor c. a steam turbine

Physics
A 0.12-kg ball traveling with a speed of 40 m/s is brought to rest in a catcher's mitt. What is the size of the impulse exerted by the mitt on the ball?

Physics
A bowling ball has a mass of 6 kg and a speed of 1.5m/s. A baseball has a mass of 0.12 kg and a speed of 40 m/s. Which ball has the larger momentum?

Physics
A 0.4-kg ball has a velocity of 20 m/s. a. What is the kinetic energy of the ball? b. How much work was required to lift the box to this position?

economics
explain why the marginal cost curve is equal to the supply curve for a monopoly

math
Thank you it was very helpful

ECONOMICS
WHAT IS HORIZONTAL INTERGRATION

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