In transmitting dot and dash signals, a communication

An Introduction to Thermal Physics 1
Problem 16P Suppose you flip 1000 coins. a) What is the probability of getting exactly 500 heads and 500 tails? (Hint: First write down a formula for the total number of possible outcomes. Then, to determine the multiplicity of the 500-500 macrostate, use Stirlings approximation. If you have a fancy

Chemistry 11
A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver.

Myers' Psychology for AP 2
Thorndikes principle that behaviors followed by favorable consequences become more likely is known as what? a. Law of effect b. Operant conditioning c. Shaping d. Respondent behavior e. Discrimination

Anatomy & Physiology 1
The papillary layer of the dermis is most closely associated with which layer of the epidermis? a. stratum spinosum b. stratum corneum c. stratum granulosum d. stratum basale

Krugman's Economics for AP® (High School) 2
After each of the following events, will the supply curve for the good that is mentioned shift to the left, shift to the right, or remain unchanged? a. The coffee berry borer beetle destroys large quantities of coffee berries. b. Consumers demand more bike helmets than ever. c. The number of tea prod

Macroeconomics 22nd
What are the determinants of demand? What happens to the demand curve when any of these determinants change? Distinguish between a change in demand and a movement along a fixed demand curve, noting the cause(s) of each.

Biology for AP Courses
Which of the following are two examples of vestigial structures? a. gills in fish and parts of the throat in humans b. butterfly wings and dragonfly wings c. hind leg bones in whales and leaves on some cacti d. shark fins and dolphin fins

Advanced Engineering Mathematics 10
Find the general solution. If an initial condition is given, find also the corresponding particular solution and graph or sketch it. (Show the details of your work.) \(y^{\prime}=2 y-4 x\)