A 5000 kg train car, with its top open, is rolling on

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics 3
Problem 60P A 500 g air-track glider attached to a spring with spring constant 10 N/m is sitting at rest on a frictionless air track. A 250 g glider is pushed toward it from the far end of the track at a speed of 120 cm/s. It collides with and sticks to the 500 g glider. What are the amplitude and

Microbiology: An Introduction 11
How are bacteria, archaea, fungi, protozoa, algae, and viruses distinguished on the basis of cellular structure?

Elementary Statistics: A Step by Step Approach 8th ed. 8
Teachers Salaries The average annual salary for all U.S. teachers is $47,750. Assume that the distribution is normal and the standard deviation is $5680. Find the probability that a randomly selected teacher earns a. Between $35,000 and $45,000 a year b. More than $40,000 a year c. If yo

American Government
House leaders are more powerful than Senate leaders because of ________. a. the majoritarian nature of the Housea majority can run it like a cartel b. the larger size of the House c. the constitutional position of the House d. the State of the Union address being delivered in the House chamber

Principles of Economics 6
The New York Times reported (Feb. 17, 1996) that subway ridership declined after a fare increase: There were nearly four million fewer riders in December 1995, the first full month after the price of a token increased 25 cents to $1.50, than in the previous December, a 4.3 percent decline. a. Use the

Principles of Macroeconomics 6
Bill and Hillary produce food and clothing. In an hour, Bill can produce 1 unit of food or 1 unit of clothing, while Hillary can produce 2 units of food or 3 units of clothing. They each work 10hours a day. a. Who has an absolute advantage in producing food? Who has an absolute advantage in producing

Calculus: Early Transcendentals 9
A rechargeable battery is plugged into a charger. The graph shows C(t), the percentage of full capacity that the battery reaches as a function of time t elapsed (in hours). (a) What is the meaning of the derivative C(t)? (b) Sketch the graph of C(t). What does the graph tell you?

Principles of Economics 9
Which of the following is an example of a public good? a. residential housing b. national defense c. restaurant meals d. fish in the ocean