I have this assignment where I need to chose a series of numbers ranging from 0.050 – 0.500 and need to give my responses using the same number of significant figures as reported in that range. Would the overall number of significant figures for my calculations be 2 or 3?
If it were 2 sig figs how would I write 101 mL?
When nerve cells are at rest, there is an unequal amount of positive and negative charges on either side of a nerve cell membrane. This charge difference creates an electrical potential. Describe how the resting membrane potential (resting potential) is generated.
Describe the role of sodium ions and sodium channels in generating an action potential.
The light bulb in the circuit shown here(Figure 1) has a resistance of 12 Ω ; the rod is 1.31 m long and moves to the left with a constant speed of 3.4 m/s ; the strength of the magnetic field is 2.0 T .
A) Suppose we now adjust the strength of the magnetic field until the speed of the rod is 2.33 m/s , keeping the force equal to 1.9 N . What is the new magnitude of the magnetic field?
B) Why is the magnetic force exerted on the rod to the right?
C) Why is the direction of the induced current clockwise?
https://session.masteringphysics.com/problemAsset/1126386/5/Walker4e.ch23.Pr105.jpg
A child in a boat throws a 4.10- package out horizontally with a speed of 10.0 . Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 22.0 and that of the boat is 45.0 . (Take the package’s direction of motion as positive.)
***Please help, Kinesiology 350 assignment***
*Reference at least 2 (two) empirical articles in your response.
* Select a population of your choice (college students, older adults, retired athletes, etc.)
Answer the following questions:
1. What are some of the barriers to physical activity identified?
2. What are the suggested applied implications for healthcare practitioners to overcome such barriers?
Hint: If the article does not give any applied implications, it may not be an appropriate article to select for this project.
The assignment is to be a MAXIMUM of two paragraphs, in 12 point font. Please use APA 6 th edition style referencing.th edition style referencing.page
change
Scenario
The p-value was slightly above conventional threshold, but was described as “rapidly approaching significance” (i.e., p =.06). An independent samples t test was used to determine whether student satisfaction levels in a quantitative reasoning course differed between the traditional classroom and on-line environments. The samples consisted of students in four face-to-face classes at a traditional state university (n = 65) and four online classes offered at the same university (n = 69). Students reported their level of satisfaction on a fivepoint scale, with higher values indicating higher levels of satisfaction. Since the study was exploratory in nature, levels of significance were relaxed to the .10 level. The test was significant t(132) = 1.8, p = .074, wherein students in the face-to-face class reported lower levels of satisfaction (M = 3.39, SD = 1.8) than did those in the online sections (M = 3.89, SD = 1.4). We therefore conclude that on average, students in online quantitative reasoning classes have higher levels of satisfaction. The results of this study are significant because they provide educators with evidence of what medium works better in producing quantitatively knowledgeable practitioners
A piece of wood is 0.640 m long, 0.260 m wide, and 0.070 m thick. Its density is 700 kg/m3.
A)
What volume of lead must be fastened underneath it to sink the wood in calm water so that its top is just even with the water level?
Express your answer using two significant figures.
B)
What is the mass of this volume of lead?
Express your answer using two significant figures.
(1/2 page min, no cut and paste, site refs “no wiki”)Discuss the advantages and disadvantages of coal energy and why it is still so widely used.
Discuss the advantages and disadvantages of coal energy and why it is still so widely used.AnswerCoal could be regarded as one of the most primitive resources used by human beings for thepurpose…
Cyclopropane, C3H6 has a three-membered hydrocarbon ring structure. It undergoes rearrangement to propene. At 1000oC, the first-order rate constant for the decomposition of cyclopeopane is 9.2 s-1.
a) Determine the half-life of the reaction.
b) What percent of the original concentration of cyclopropane will remain after 4 half-lives?
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