Packages are thrown down an incline at A with a velocity

Organic Chemistry 8
Problem 49SP When tert-butyl bromide is heated with an equal amount of ethanol in an inert solvent, one of the products is ethyl tert-butyl ether. (a) What happens to the reaction rate if the concentration of ethanol is doubled? (b) What happens to the rate if the concentration of tert-butyl bromid

College Physics 1
Problem 13PE Conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound persons voice was so loud in the astronauts space helmet that it was picked up by the astronauts microphone and transmitted back to Earth. It is reasonable to assume that the

Sears and Zemansky's University Physics with Modern Physics 13
Problem 50E The Cosmo Clock 21 Ferris wheel in Yokohama, Japan, has a diameter of 100 m. Its name comes from its 60 arms, each of which can function as a second hand (so that it makes one revolution every 60.0 s). (a) Find the speed of the passengers when the Ferris wheel is rotating at this rate.

Chemistry 9
A certain microwave oven delivers 750. watts (J/s) of power to a coffee cup containing 50.0 g water at 25.08C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, how many photons must be absorbed, to make the water boil? The specific heat capacity of water is 4.18 J/8C ? g

Introductory Chemistry (MasteringChemistry) 6
Why does soda fizz?

Urban Economics 8
Education Spillover Benefi ts Consider a city where the initial wage of high-school dropouts is $10. Suppose the college share of the workforce increases by 2 percent. Use a demand-supply graph of the labor market for high-school dropouts to show the effects on the dropout wage. Use the numbers provi

Chemistry for today : general, organic, and biochemistry 9
Calculate the volume of 125 g of the following liquids: a. Acetone (d = 0.792 g/mL) b. Olive oil (d = 0.918 g/mL) c. Chloroform (d = 1.49 g/mL)

Chemistry for today : general, organic, and biochemistry 9
An archaeologist sometime in the future analyzes the iron used in an old building. The iron contains tiny amounts of nickel-63, with a half-life of 92 years. On the basis of the amount of nickel-63 and its decay products found, it is estimated that about 0.78% (1/128) of the original nickel-63 remain