Friday

September 30, 2016
Total # Posts: 25

**Fluid mechanics, Hydraulics**

Piston A has a cross section of 1200 sq.cm. While that of piston B is 950 sq.cm. with the latter higher than piston A by 1.75m. If the intervening passages are filled with oil whose specific gravity is 0.80, what is the difference in pressure between A and B

*November 18, 2015*

**Trig**

Determine the intervals of continuity of f(x)= ln(sin(x)) I looked at the graph and I have no idea how to state the intervals.

*November 16, 2014*

**Math**

Suppose that a water wheel has a radius of 22 feet and makes a complete revolution every 14 seconds. The bottom of the water water wheel is 1 foot above the ground level. One step of the water wheel is painted red to be able to determine the amount of time for one complete ...

*November 15, 2014*

**Calculus**

Given f(x) = cubed root of x^2 (2x+5)^3, find the critical numbers after you identify the domain.

*June 23, 2014*

**Math**

Obtain the differential equation from the following: 1. y=C(subscript 1)e^x+ C(subscript 2)xe^x 2. y=[C(subscript 1)e^2x]cos3x+[C(subscript 2)e^2x]sin3x

*June 17, 2012*

**Physics**

A sphere weighs 200N resting on a wall. It is supported by a rope 20 degrees from the wall. What will be the tension force on the rope?

*June 12, 2012*

**Calculus Help Please**

Ship A is traveling west at 40kkm/h and ship B is traveling north at 30mk/h. Both are headed for the Los Angeles Harbor. (a) At what rate are the boats approaching each other when ship A is 3km and ship B is 4km from the dock? (b) At what rate would the distance between the ...

*November 28, 2011*

**algebra**

Write and solve a system of equations for each situation. Check your answers. 13. Your school sells tickets for its winner concert. Student tickets are $5 and adult tickets are $10. If your school sells 85 tickets and makes $600, how many of each ticket did they sell? 14. A ...

*September 28, 2011*

**Algebra 2**

Find the specified term of each geometric sequence ab^2, a^2b^5, a^3B^8, ...; t25 really stumped. I know that r= (a^2b^5)/ab^2 but I don't know what to do next. ab^2 ((a^2b^5)/ab^2)^n-1 ??

*May 23, 2011*

**Algebra 2**

Find the geometric mean of each pair of numbers. 1/12, 1/18 I understand to multiply 1/12 * 1/18 and take the sqrt of the answer. But, what would be the sqrt of (1/288)? -18, -36 I got 25.46 for my answer.

*May 23, 2011*

**Algebra II repost, pls help**

What two numbers are represented by each of the following? -6+/- sqrt 6 -6 plus or minus square root 6 not sure how to type the question. I think the answers are -6 + sqrt 6 -6 - sqrt 6 I'm just not sure what the question is actually asking for. Could someone please help ...

*May 20, 2011*

**Algebra II**

What two numbers are represented by each of the following? -6+/- sqrt 6 -6 plus or minus square root 6 not sure how to type the question. I think the answers are -6 + sqrt 6 -6 - sqrt 6 I'm just not sure what the question is actually asking for. Could someone please help ...

*May 20, 2011*

**Financial Accounting**

What financial statement or document would a business use to account for losses, damaged goods, and stolen inventory?

*February 25, 2011*

**mummiacation**

hi i like cows moo

*November 8, 2007*

**math**

The largest integer that is not the sum of two or more different primes?

*September 29, 2007*

**math**

The number of faces of an icosahedro or the number of verrices of a dodecahedro?

*September 29, 2007*

**mathematics**

The two-dight number that is divisible by both the sum and the product of its dights?

*September 29, 2007*

**Help!!!!!**

The least number of moves in the Tower of Hanoi puzzle with 5 disks?

*September 29, 2007*

**mathematics**

A number n where if the sum of dights of the number of the number is divisible by n, then the number itself is divisible by n?

*September 29, 2007*

**mathematics**

One of the four number where n! has n dights! ???????????

*September 29, 2007*

**mathematics**

The largest integer that is not the sum of two or more different primes?

*September 29, 2007*

**math**

The number of feared Pythagoreans?

*September 23, 2007*

**math**

I am working a problem, 'order of operations" ie, 100 a=4/5. I need to know if I mulitiply this? should I change the fraction to 4.5?

*August 30, 2007*

**science**

If you replaced an electron with a proton would the magnitude of the electric and gravitational forces increase, decrease or stay the same? Would the direction or each of the forces reverse or remain the same? Thanks I will be happy to critique your analysis.

*May 9, 2007*

**geology**

Can any one point me in the direction of website that will explain the geological timeframes that affect climate change taking into acccount history and present day. Or even give me a clue as to what I'm looking for. Thanks Thank you for using the Jiskha Homework Help ...

*April 26, 2007*

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