Determine the force (in the lab frame) between two charges moving with the same velocity V. What is the ratio of transverse-to-longitudinal force? Explain what happens to this ratio when the two charges lie on a line parallel to V or perpendicular to V?

Explain each of these Marxian equations, relating them to his analysis of the “law of motion” of capitalism:

a) Value = c+v+s

b) s'= s/v

c) Q= c/(c+v)

d) p' = s'(1-Q)

6a. Let V be a finite dimensional space, and let Land T be two linear maps on V. Show that LT and TL have the same eigenvalues.

6b. Show that the result from part A is not necessarily true if V is infinite dimensional.

1. Class of 2018 graduates were 1250 students, 40% of them were female students, and the rest were male, 10% of the female students got a grade of “A” and 10 students of the female graded “A” were international students. Class of 2019 had 875 male students, also 10 female students got an “A” in their grade in class 2019, where the total number of students did not change from last year.

Calculate the following: (Show your calculations-write the steps)

1. The number of female students.
2. The number of Female students with a grade “A”.
3. The percentage of the female international students graded “A” out of the total number of female students with a grade “A”.
4. What is the percentage increase or decrease in the number of male students in comparison to class 2018?
5. What is the percentage of female students who got “A” out of the female students?

2. 23, 30, 1, 49, 2, 36, 7, 23, 13, 9, 30, 17, 20.

Calculate the mean median and mode.

Five sophomores were given an English achievement test before and after receiving instruction in basic grammar. The mean difference score is -0.40, and the estimated variance for the difference scores is 8.3. Using the .05 significance level (and five steps of hypothesis testing) is it reasonable to conclude that future students would show higher scores after instruction?
Step I:
-Population 1: -Population 2: -

Research hypothesis:

Null hypothesis:

Step II: Give the characteristics of the comparison distribution -The shape is:

The mean is:
-
Compute the standard deviation using the following

1- Estimated variance of difference scores for sample S2 = 8.3

2-Compute the estimated variance of the distribution of means:
  
3-Compute the estimated standard deviation of the distribution of means:

Step III: What is (are) the cut-off(s)?

Step IV: Determine the sample score position on the comparison distribution

Step V: What is the decision? Write your answer in the APA format.

Dating is a practice that started in the 1920s and followed the practice of courtship. Current sociological research has focused on college students and the extent to which they are or are not dating. In addition, sociologists have examined the even newer culture of “hooking up” on college campuses.

https://www.youtube.com/watch?v=FxBOSdl-b54

1.Identify the gendered aspects of dating in the video. In other words, which roles/responsibilities/expectations are associated with men and which are associated with women?

2.Explain how you think dating today is similar and/or different in comparison to the 1950s. Here, I encourage you to think about Activity #2 to help you develop your comments.

3.How about contemporary dating compared to hooking up? How are these two practices similar and/or different? Are contemporary dating and hook up practices gendered? In other words, which roles/responsibilities/expectations, if any, are typically associated with men and which are associated with women?

For H₂O, determine the specified property at the indicated state.

(a) T = 140°C, v = 0.5 m³/kg. Find p, in bar.
(b) p = 30 MPa, T = 120°C. Find v, in m³/kg.
(c) p = 10 MPa, T = 450°C. Find v, in m³/kg.
(d) T = 80°C, x = 0.8. Find p, in bar, and v, in m³/kg.

19. a. For the titration of 50.00 mL of 0.0500 M Fe2+ with 0.1000 M Ce4+ in the presence of 1 M H2SO4, please calculate the system potential after 2.25 mL of Ce4+ is added .

Ce4+ + e ÍÎ Ce3+, E0 = + 1.44 V (in 1M H2SO4)

Fe3+ + e ÍÎ Fe2+, E0 = + 0.68 V (in 1M H2SO4).

They got Esystem = 0.62 V.

b)  For the same titration as in question (a), what’s the system potential after 32.00 mL of Ce4+ is added?

Answer: Esystem = 1.41 V

c) If we set up an electrochemical cell where the cathode is the system that we have in question (b), whereas the anode is a saturated calomel electrode (0.2444 V relative to standard hydrogen electrode). Please determine the potential of this electrochemical cell.

Answer: Ecell = 1.16 V

d) Please determine the system potential at the equivalence point for the titration described in question (a).

Answer: Esystem = 1.06 V

I listed all the answers. I just want to see how they got that. Thanks.

Determine if ~w = (−4, 6, 1) is a linear combination of ~u = (1, 0, −1) and
~v = (1, −11, 3) . If so, then express ~w as a linear combination of ~u and ~v .

Let ~u = (1, 1, −1) and ~v = (2, 1, 3). Determine if ~w = (7, 6, 3) is a linear
combination of ~u and ~v. If so, express ~w as a linear combination of ~u and ~v.

Let
~x1 = (2, −1, 3, 1), ~x2 = (1, 0, −1, 1), ~x3 = (0, 1, 4, 2).
(i) Determine if ~x1, ~x2, and ~x3 are linearly independent. Justify your answer.
(ii) Determine if ~v = (2, −1, 3, 1) is a linear combination of ~x1, ~x2, and ~x3.
If so, express ~v as a linear combination of ~x1, ~x2, and ~x3. If not, justify
your answer.
(iii) Determine if ~u = (1, 0, 0, 1) is a linear combination of ~x1, ~x2, and ~x3. If
so, express ~u as a linear combination of ~x1, ~x2, and ~x3. If not, justify
your answer.