Explain what it means to be an obligate intracellular parasite. Name three groups of obligate intracellular parasites.

Classical Mechanics 0
By evaluating their dot product, find the values of the scalar s for which the two vectors b = x + s'Sr and c = x sS7 are orthogonal. (Remember that two vectors are orthogonal if and only if their dot product is zero.) Explain your answers with a sketch.

Chemistry 11
A graduated cylinder is filled to the 40.00-mL mark with a mineral oil. The masses of the cylinder before and after the addition of the mineral oil are 124.966 g and 159.446 g, respectively. In a separate experiment, a metal ball bearing of mass 18.713 g is placed in the cylinder and the cylinder is

Myers' Psychology for AP 2
Interneurons are said to a. send messages from specific body parts to the brain. b. transmit and process information within the brain and spinal cord. c. act as connectors, supporting other neurons in the brain. d. send messages from the brain to body parts. e. influence the pituitary gland.

Mathematical Statistics with Applications 7
Let Y1, Y2, Y3,... Yn be independent standard normal random variables. a What is the distribution of n i=1 Y 2 i ? b Let Wn = 1 n n i=1 Y 2 i . Does Wn converge in probability to some constant? If so, what is the value of the constant?

Principles of Economics 2
Why do economists use the ceteris paribus assumption?

Urban Economics 8
Rural versus Urban Development In the initial equilibrium, a nations workforce of 24 million is divided equally between a city and a rural area. The initial common utility level is $50. The urban utility curve has the conventional hump shape, with a peak at 8 million workers. In the workforce range 8

Principles of Economics 9
At two points on an indifference curve, a. the consumer has the same income. b. the consumer has the same marginal rate of substitution. c. the bundles of goods cost the consumer the same amount. d. the bundles of goods yield the consumer the same satisfaction.

College Physics: Explore and Apply 2
A 0.62-kg Slinky has 185 coils. When you and your friend stretch the Slinky by exerting a 2.0-N force on its ends, the separation between the adjacent coils is 7 cm. Determine the speed of the transverse wave on the Slinky.