Mastering Astronomy, Seasons 2: Why is summer hotter than winter?
Hey everyone, I was hoping someone could help me with this question.
Each of the following figures shows a person (not to scale) located on Earth at either 40°N or 40°S latitude. Rank the figures based on how much time the person spends in daylight during each 24-hour period, from most to least. To rank items as equivalent, overlap them.
A solution has a density of 1.023 g/mL and a concentration of 0.0800 g/dL. What is the concentration
A solution has a density of 1.023 g/mL and a concentration of 0.0800 g/dL. What is the concentration in parts per million? A) 700 ppm B) 1408 ppm C) 550 ppm D) 818 ppm
Can you help me with my review? I've attached screenshots of the diagrams
** I tried to use photobucket to upload the pictures beside the questions however it didn't work. I instead had to attach them to this post
1. What are the most likely characteristics of the most recent common ancestor (MRCA) of fly species 1 and fly species 2, labeled in the diagram above?
A car service charges customers a flat fee per ride (which is higher during rush hour traffic) ...
A car service charges customers a flat fee per ride (which is higher during rush hour traffic) plus charges for each minute and each mile. Suppose that, in a certain metropolitan area during rush hour, the flat fee is $4, the cost per minute is $0.30 and the cost per mile is $1.30 Let x be the number of minutes and y the number of miles. At the end of a ride, the driver s
Which of the following characteristics does NOT pertain to management accounting? A. Has externally
Which of the following characteristics does NOT pertain to management accounting? A. Has externally imposed standards B. Provides information and estimates about future activity C. Provides financial and operating data multidisciplinary in scope D. Generates specific-purpose financial statements and reports
It’s important to understand the appropriate amounts of both macronutrients and micronutrients to ...
It’s important to understand the appropriate amounts of both macronutrients and micronutrients to consume and how the DRI standards indicating those recommended amounts relate to each other. Review the accompanying graphs and label the fields accordingly. Drag the appropriate labels to their respective targets. View Available Hint(s)
A 1.35 m aqueous solution of compound X had a boiling point of 101.4 °C. Which one of the following
A 1.35 m aqueous solution of compound X had a boiling point of 101.4 °C. Which one of the following could be compound X? The boiling point elevation constant for water is 0.52 °C/m. A) C6H12O6 B) CH3CH2OH C) Na3PO4 D) CaCl2 E) KCl
In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å ...
In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (Li–F), 2.82 Å (Na-Cl), 3.30 Å (K–Br), and 3.67 Å (Rb–I), respectively.
1. Predict the cation–anion distance using the values of ionic radii given in Figure 7.7, on page 257 in the textbook. 2. Calculate the difference between the experimentally measured ion–ion distances a
Referring to following statements, I would like to know on any article about what level of barometric pressure effects body as describe below
Does anyone have any suggestions? Thanks in advance
High Barometric Pressure Effects on the Body When the barometric pressure is high, more pressure is pushed against our body, limiting tissue expansion. T
Three debts, the first for $1720 due four months ago, the second for $1315 due in 5 months, and the ...
Three debts, the first for $1720 due four months ago, the second for $1315 due in 5 months, and the third for $1640 due in 7 months, are to be paid by a single payment today. How much is the single payment if money is worth 7.5% p.a. and the agreed focal date is today?
Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or ...
Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or phrase is associated with both muscular and skeletal systems, place it in the overlapping parts of the circles.
How do bacteria regulate transcription of these operons? (Mastering Genetics)
The question is about regulation of model operons. The trp and lac operons are regulated in various ways. How do bacteria regulate transcription of these operons? Sort the statements into the appropriate bins depending on whether or not each operon would be transcribed under the stated conditions. I am down to my last 2 attempts and can't seem to figure out whats
Mastering Bio question: The experimental technique: Density-gradient centrifugation
When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed. Meselson and Stahl found that when cell contents were subjected to centrifugation with a CsCl solution, a band of DNA formed at the CsCl density that matched the d
3. Planet X-39 has a mass equal to 1/3 that of Earth and a radius equal to 1/3 that of Earth. If v is the escape speed for Earth, what is the escape speed for X-39?
Hey guys. I am trying to do a bit of a Google search around as to what actually forms the hollow part of a blastula. My understanding is a morula is not hollow, and then something happens where it is hollow. I feel like I've also read that the at this stage of development, the embryo is the same size of the zygote, so is there apoptosis, or something that leav
A motorcycle moving at 50 km/h skids 10 m with locked brakes. How far will it skid with locked ...
A motorcycle moving at 50 km/h skids 10 m with locked brakes. How far will it skid with locked brakes when traveling at 150 km/h? A) 10 m B) 30 m C) 50 m D) 90 m
A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon of ...
[html]A line in the spectrum of atomic mercury has a wavelength of 258 nm. When mercury emits a photon of light at this wavelength, the frequency of this light is:
a solution is prepared in which a trace or small amount of Fe2+ is added to a much larger amount of solution..
...which the [OH-] is 1.0 x 10^-2 M. Some Fe(OH)2 precipitates. The value of Ksp for Fe(OH)2 = 8.0 x10^-10.
A. Assuming that the hydroxide is 1.0 x 10^-2 M, calculate the concentration of Fe2+ ions in the solution.
B. A battery is prepared using the above solution with an iron wire dipping into it as one half-cell. The other half-cell is the standard nickel electrode. Write the ba
Instructions: a) Identify the type of probability distribution shown in the problem: binomial, hypergeometric, poisson etc. b) Identify the given in the problem. c) Solve for the probability.
Problem: 1) According to a poll released by a global polling firm, 80% of Canadians believes that the government is handling the Covid-19 crisis "well".
Instructions: a) Identify the type of probability distribution shown in the problem: binomial, hypergeometric, poisson etc. b) Identify the given in the problem. c) Solve for the probability.
3) Suppose you are randomly guessing in a ten multiple choice questions. Find the probability that you will get exactly five correct answers. Each question ha
Megan has asked Danny to come to her office to discuss the many comments she has been hearing about ...
Megan has asked Danny to come to her office to discuss the many comments she has been hearing about his inability to get along with his employees. What advice can Megan offer to Danny in terms of enhancing and refining his managerial skills in this area?
A 40.0-L container is divided into two equal parts by a rubber membrane. One hal
A 40.0-L container is divided into two equal parts by a rubber membrane. One half of the container has 1.80 moles of an ideal monatomic gas at 270 K, and the other half is a vacuum. The container does not allow any gas to escape but is free to exchange heat with the surroundings. The membrane breaks, the gas expands isothermally and eventually the gas reaches a new equilibrium condi
An irreversible engine operating between the temperatures of 550 K and 300 K ext
An irreversible engine operating between the temperatures of 550 K and 300 K extracts 1200 J of heat from the hot reservoir and produces 450 J of work. How much entropy is created in the process? A) 0.32 J/K B) 0.68 J/K C) 0.44 J/K D) 0.73 J/K E) 0 J/K
Which of the following is NOT a consequence of high cellular levels of cAMP?
a) Activation of a kinase cascade b) Activation of a G-protein c) Activation of protein kinase A d) Increased phosphorylation of a protein e) Stimulation of phosphorylation-mediated activity.
1. If a substance makes the lipid bilayer of the inner mitochondrial membrane highly permeable to H+ protons will that cause you to gain or lose weight and why. 2. If a substance increases the number of free hydrogen ions or protons in the intermembrane space of the mitochondria will that cause you to gain or lose weight and why. 3. If a substance partially blocks the pyru
Messner and Tardiff’s study using the routine activities approach found that ________.
Messner and Tardiff’s study using the routine activities approach found that ________. a. peoples’ lifestyles affected their chances of being victimized b. people victimized by people they knew tend to stay inside more often c. people victimized by those whom they knew tend to go out more often d. routine activities have no bearing in interpreting the social ecol
Instructions: a) Identify the type of probability distribution shown in the problem: binomial, hypergeometric, poisson etc. b) Identify the given in the problem. c) Solve for the probability.
4) The length of time, L hours, that a phone will work before it needs charging is normally distributed with a mean of 100 hours and standard deviation of 15 hours.
Instructions: a) Identify the type of probability distribution shown in the problem: binomial, hypergeometric, poisson etc. b) Identify the given in the problem. c) Solve for the probability.
2) The average number of relief goods your household receives during a pandemic is 3 per month. What is the probability that exactly 4 relief goods will be received
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