Which has the higher frequency, red or blue light? Which

College Physics 1
Problem 61PE A sandal is dropped from the top of a 15.0-m-high mast on a ship moving at 1.75 m/s due south. Calculate the velocity of the sandal when it hits the deck of the ship: (a) relative to the ship and (b) relative to a stationary observer on shore. (c) Discuss how the answers give a consist

Biology 8
Explain how table salt has emergent properties.

Probability and Statistics 4
Suppose that a failure in a certain electronic system can occur because of either a minor or a major defect. Suppose also that 80 percent of the failures are caused by minor defects, and 20 percent of the failures are caused by major defects. When a failure occurs, n independent soundings X1,...,Xn a

Organic Chemistry 9
A student wanted to use the Williamson ether synthesis to make (R)-2-ethoxybutane. He remembered that the Williamson synthesis involves an SN2 displacement, which takes place with inversion of configuration. He ordered a bottle of (S)-butan-2-ol for his chiral starting material. He also remembered th

Physical Chemistry 8
The orthorhombic unit cell of NiSO4 has the dimensions a = 634 pm, b = 784 pm, and c = 516 pm, and the density of the solid is estimated as 3.9 g cm3. Determine the number of formula units per unit cell and calculate a more precise value of the density.

Essentials of Statistics for the Behavioral Sciences 10
A researcher is interested in the texting habits of high school students in the United States. The researcher selects a group of 100 students, measures the number of text messages that each individual sends each day, and calculates the average number for the group. a. Identify the population for

Psychology 1
What is egocentrism? Provide an original example.

Principles of Economics 9
The demand curve for cookies is downward-sloping. When the price of cookies is $3, the quantity demanded is 100. If the price falls to $2, what happens to consumer surplus? a. It falls by less than $100. b. It falls by more than $100. c. It rises by less than $100. d. It rises by more than $100.