 Lv 43,271 points

# J Z

Questions66
• ### Ending of the movie Dinner Rush?

It ogt cut off as I was watching it. I was up to the part where Louis Cropa takes his two chocolate desserts and is about to leave the restaurant. What happens?

• ### How many people on Yahoo Answers do you think are Asian?

I'm thinking around 45% upon initial impresion...

• ### How do you sustain inspiration for a short story?

I am currently writing several short stories, but I can't seem to sustain the level o fcreativity needed to let the story flow thru on the screen. After I get started for 10 min, I'm flustered--ideas don't come to me, and I just lose steam. And I've been doing this for quite a while; I've had experience with this, I've just never done anything about it.

• ### Calculus Disk Method Problem?

The graph: y^2 = x*(4-x)^2

Question: Find the volume of the solid when the area of this shape from x = 0 to x = 4 is rotated about the x-axis

my solution:

V = pi * integral (x(4-x)^2) from 0 to 4

V = pi (2x^2 - 4x^3/3 + x^4) evaluated from 0 to 4

= 32 pi /3

However, the textbook says the answer is exactly double this: 64 pi/3. Am I wrong or is the textbook wrong?

• ### Calculus Disk Method Problem?

The graph: y^2 = x*(4-x)^2

Question: Find the volume of the solid when the area of this shape from x = 0 to x = 4 is rotated about the x-axis

my solution:

V = pi * integral (x(4-x)^2) from 0 to 4

V = pi (2x^2 - 4x^3/3 + x^4) evaluated from 0 to 4

= 32 pi /3

However, the textbook says the answer is exactly double this: 64 pi/3. Am I wrong or is the textbook wrong?

• ### Disk Method calculus PRoblem?

The graph: y^2 = x*(4-x)^2

Question: Find the volume of the solid when the area of this shape from x = 0 to x = 4 is rotated about the x-axis

my solution:

V = pi * integral (x(4-x)^2) from 0 to 4

V = pi (2x^2 - 4x^3/3 + x^4) evaluated from 0 to 4

= 32 pi /3

However, the textbook says the answer is exactly double this: 64 pi/3. Am I wrong or is the textbook wrong?

• ### Weird rotational physics problem??

The moment of inertia of a pyramid is 1.8 kgm^2.

This pyramid is melted into two cones that are stacked on top of each other. The arrangement is like this:

a right-side up cone, whose apex meets the apex of an upside-down cone. It's like the famous 2 cones shape used to describe conic sections. Their bases are aligned.

What is the moment of inertia of this new shape when it is rotated on the axis connecting the centers of its two circle-bases?

I'm sorry if its phrased badly.

• ### Gravitational Field integral?

There's an equilateral triangle to the right of a point that's distnace x away. There is a semi-circular hoop to the left that's a distance x away. The point is on the axis of both the circle and triangle's center of mass. Both triangle and circle have the same linear density, lambda. Find the net gravitational field on point x.

I have the hoop down as: G(lambda)/r

How to find the triangle?

• ### Tough Water Tank (Taylor series) Calc question?

The rate R (in gallons per hour) at which water leaks from the two water tank is decreasing throughout one nigh, as shown by the table below:

At 0 hrs, R = 71

At 2 hrs, R = 53

At 4 hrs, R = 35

At 6 hrs, 23

At 8 hrs, 15

At 10 hrs, 11

A) What is the max amount of water that could have leaked out in the first two hour period? The min?

Ans: 142 gallons and 106 gallons

B) Make lower and upper estimates for the total amount of water that leaked out during the 10 hrs.

394 gal and 274 gal

It definitely involves some sort of series, Taylor or no. But how would you start this problem?

For the first problem, I got that the min = Int( 71-9x^2) from 0 to 2. The max was just 71*2 = 142. Maybe that helps, or no.

• ### What do you find most ordinary about America?

Well, there are personal reasons each of us can give for what makes America so unique. But what makes America ordinary, unspectacular?

• ### What's the best Smashing Pumpkins song?

That you've ever heard...

• ### Collisions lab help?

Recently our physics class tried an experiment in class where we measured impulse by having a cart slide off a basically frictionless ramp that's inclined. The cart hits a spring which is attached to a force sensor. We let the cart collide, and then stop the cart and watch the force sensor record the force vs. time graph.

We get the usual impulse peak, but immediately after that there are some really small bumps on the graph, and after that the graph levels out and has a slope of 0 again.

What do these bumps indicate, because this is happening after the cart has already gotten off the spring? How does this affect the momentum of the system?

• ### Momentum and Dampened harmonic motion?

Recently I tried an experiment in class where we measured impulse by having a cart slide off a basically frictionless ramp that's inclined. The cart hits a spring which is attached to a force sensor. We let the cart collide, and then stop the cart and watch the force sensor record the force vs. time graph.

We get the usual impulse peak, but immediately after that there are some really small bumps on the graph, and after that the graph levels out and has a slope of 0 again.

What do these bumps indicate, because this is happening after the cart has already gotten off the spring? How does this affect the momentum of the system?

• ### What are some of the dumbest questions you've heard/seen?

Doesn't necessarily have to be on Yahoo Answers.

• ### What are some of the dumbest questions you've heard/seen?

Doesn't just have to be on Yahoo Answers. One of my favorites was 'What are Newton's 3 laws."

• ### What are some of the dumbest questions you've heard/seen?

Doesn't have to be just on Yahoo Answers.

• ### What is the difference between Tipler Physics for Scientists and Engineers 4th and 5th+ edition?

My class is using the 4th, but I want to know if I can use the 5th b/c I already ordered it.

• ### Fav. Scrubs songs to put on my IPOD?

What are ur favorite songs featured on Scrubs for all 6 seasons?

I have:

-Most of Colin Hays songs (but feel free to list them)

-Superman

Plz don't write "all of them"