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1. ### A man walks 9 m to the west, and then 40 m to the north. The magnitude of the displacement of his walk is?

... R^2 = 9^2 + 40^2 = 1681 R = 41 m the angle is 12.7° W of N When you get a good response, please consider giving a best answer. This is the only reward we get.

4 Answers · Science & Mathematics · 20/06/2019

2. ### logical equivalences help?

I favor your first version: ∃x(R(x) ∧ T(x) ∧ S(x)) It's a straightforward expression of the statement...

1 Answers · Science & Mathematics · 03/06/2019

3. ### Help with this math problem about revenue??

R= number of games*price= (1500 - 100x)(45 + 5x)= 67500 + 3000x - 500x² dR/dx= 3000 - 1000x= 0; x= 3 max price= 45 + 5*3= \$60

1 Answers · Science & Mathematics · 19/06/2019

4. ### Exponent rules help?

... unchanged, so you are basically asking about this: abb^r --> ab^(1+r) Let's expand that product as follows: a * b * b...

6 Answers · Science & Mathematics · 26/05/2019

5. ### calculus II question on double integrals?

B)....r cos Θ = 6 ===> x in [ 0 , 6 ] & y in [ 0 , x ]

2 Answers · Science & Mathematics · 11/08/2019

6. ### Vectors Homework Help?

...rewrite the second line in the same form as the first line. We have r_2 = (2, 1, 3) + s(-3, -10, -5) Now, if we want the lines to be parallel...

2 Answers · Science & Mathematics · 04/06/2019

7. ### Charge/Mass Ratio of Electron and Induction?

Uhhhhhhhh Magnetic force = centripetal force? Bvq = mv^2 / r v = rBq / m r = 5.1×10^-4 m 2. If I is "the...

1 Answers · Science & Mathematics · 12/02/2019

8. ### Physics Question - Straightening the graph Electrostatic Force?

F is proportional to 1/ r^2 F2/F = r^2 / ( 2/3 r^2) =9/4

1 Answers · Science & Mathematics · 07/10/2019

9. ### If the radius is 21.5 then what’s the diameter and circumference??

given r = 21.5 solving it's diameter d = 2r d = 2(21.5) = 43 answer// solving it's circumference C = 2πr C = 2π(21.5) = 135.1 answer//

7 Answers · Science & Mathematics · 14/01/2020

10. ### Uniform circular motion question tension of my arm?

ac = V^2/r = 3^2/0.7 = 12.856 m/sec^2 at top F = m(ac-g) = 2(12.856-9.806) = 2*3.05 = 6.10 N down F' = m(ac+g) = 2*(12.856+9.806) = 45.3 N

4 Answers · Science & Mathematics · 11/03/2019