 Lv 31,235 points

# Jenna

Questions34
• ### Find the current through the resistor b.?

I've already figured out how to find the current through resistor a, but I can't figure it out for resistor b, and I really need that part to finish the rest of the problem. please explain!! thank you!

https://session.masteringphysics.com/problemAsset/...

• ### The aluminum wire in a high-voltage transmission line is 2.7 cm in diameter. It is designed to carry a current of 1100 A.?

The aluminum wire in a high-voltage transmission line is 2.7 cm in diameter. It is designed to carry a current of 1100 A.

What is the voltage drop across a 12-km-long segment of this power line? Please explain.

• ### What is the voltage drop across a 12-km-long segment of this power line?

The aluminum wire in a high-voltage transmission line is 2.7 cm in diameter. It is designed to carry a current of 1100 A. What is the voltage drop across a 12-km-long segment of this power line? Please explain.

• ### How much charge is on each plate?

A 3.0 cm × 3.0 cm parallel-plate capacitor has a 3.0 mm spacing. The electric field strength inside the capacitor is 1.4×10^5 V/m.

How much charge is on each plate?

q1, q2 = C

1. compute the arc length of the curve f(x)=3/4x + ln x + 1/4 ln (1+x), x ∈ [1,4]

2. compute the length of the line segment of y=3x+5, x ∈ [1,3]

• ### help with calculus question?

In the following identity 2x+1/x^3-x^2-x+1= A/x+1 + B/x-1 + C/(x-1)^2 solve for constants A, B, & C.

• ### quick help with calculus homework?

can someone please check my answers and make sure I got these right, because I'm pretty sure they're right but I really don't want to get any wrong.

1. What is the value of d/dx [f^-1(x)] when x= 2, given that f(x)=x^3+x and f^-1(2)=1?

2.What is the value of d/dx [f^-1(x)] when x= -2, given that f(x)= ³√(1-x) and f^-1(-2)=9?

3. What is the value of d/dx [f^-1(x)] when x= 0, given that f(x)=x/(1-x) and f^-1(0)=0?

4. What is the value of d/dx [f^-1(x)] when x= π, given that f(x)=2x+sin x cos x and f^-1(π)=π/2?

5. What is the value of d/dx [f^-1(x)] when x= 2, given that f(x)=(2-x^2)/(1+x) and f^-1(2)=0?

• ### True or False: Calculus?

True or False: Every function of the form f(x)= c-x is its own inverse, for and choice of c.

I don't even understand what this is asking so can someone please explain why it is true or false?

• ### help with this "work" problem please?

A cylindrical tank shown is half full of a certain fluid that weighs 12 pounds per cubic foot. Find the work done in pumping the fluid out of the tank from the top outlet

http://i40.tinypic.com/xeotl.jpg

I know the equation you would use would be this: http://i41.tinypic.com/2dqkgus.jpg but what goes in the equation for (a) and (b) and f(x)?

• ### help with calculus question, volume of cross-sections?

What is the volume of the solid whose cross-sections are equilateral triangles perpendicular to the x-axis and with a base on the region bounded by curves y= x, y= -x, and x= 1.

Please explain, because I really need to know how to do this for the rest of my homework.

• ### Should I use dx or dy for this calculus problem?

How do you know when to use dx or dy when doing a problem like this...

Find the volume of the solid of revolution obtained by rotating the region bounded by x = 1, x = 2, y = x^3, and y = 5x + 2 about the y-axis.

should the problem be set up like this

because I've tried doing the problem both ways and I'm not getting any of the answers on my homework so I think I might just be setting it up wrong.

A. 2/5π

B. 31/5π

C. π/15

D. 254/15π

• ### Need help with calculus homework?

Find the volume of the solid of revolution obtained by rotating the region bounded by y = x + 1 and y = x^2 + 1 about the x-axis. Could you also explain so I understand how to do the rest of my homework.

A. 7π/30

B. 7π/5

C. 7π/15

D. π/15

• ### Need Help With Finding the Volume of the Solid of Revolution?

What is the volume of the solid of revolution obtained by rotating the region bounded by y=√x and y=x^2 around the y-axis?

Every time I try this problem I get something like π(x-x^4) and that is not one of the choices on my homework, so can someone please help? :)

• ### Is a USB 3.0 cord compatible with a USB 2.0 port?

I'm looking at buying a Seagate FreeAgent GoFlex 1 TB USB 3.0 Ultra-Portable External Hard Drive and I was wondering if this would work since my USB ports are 2.0. If it does work would the 3.0 cord even make a difference, like would it be faster than if it was a 2.0 cord?

2 AnswersOther - Hardware9 years ago
• ### I need some good songs for a tribute?

My favorite show (smallville) is ending after 10 years and I want to make a tribute video for it, but I can't think of any songs. I want a song that is emotional but happy and sad at the same time. please help. :)

3 AnswersRock and Pop9 years ago
• ### help with analytic trig homework?

1. simplify cot^2x(sin^2x)

2. simplify tan^2x csc^2x-tan^2x

3. simplify (sec x-tan x)^2

4. verify 1/tan x csc x sin x=cot x

5. verify cos^3xsin^2x=(sin^2x-sin^4x)cos x

6. solve 4 cos x=1+2 cos x

7. solve 1/2sec x-1=0

8. find all solutions in the interval (0, 2π). 2 sin^2x-3 sin x=-1

9. find the exact values of the sin, cos, and tan of the angle by using sum or difference formula. 345degrees=300degrees=45degrees

• ### My taskbar just disappeared?

my start button is still there but where the tasbar is suppose to be it's just all black, I checked and it's not on auto-hide, I don't know what to do. Please Help me.

• ### How to make a pamphlet on endangered species?

Okay so for biology I have to do a project on a endangered animal and mine is the asian leopard cat. here's a picture if you want to see it: http://www.dicapriobengals.com/Asian_Lleopard_cat_...

Anyways so I have to make a pamphlet the uses as much factual evidence and information as possible and suggestions as to what one could do to help the animal. So my question is does anybody know how to create a pamphlet for that. Like what should I have on each side of the pamphlet. Also what kind of information should I use. If anybody answers this question and gives me any information with it, can you please send me a link to the website you used, because I have to make a Works Cited page with it.