Friday

February 24, 2017
Total # Posts: 58

**Physics**

48.0 g of oxygen (O2 is diatomic) are confined in a rigid 1.00x10^3 L cubical container at temperature 300.0 K. Find the gas pressure and the force exerted by the oxygen gas on any of the six faces of the cube. Mass number of an oxygen atom is 16.0 1.00L=10^-3 m^3

*April 24, 2013*

**Physics**

A 16.0 gallon steel tank is topped off with gasoline at 0 degrees C. With the lid off, the tank is left outside where the air temp is a sizzling 40.0 deg C. How much gasoline overflows? (assume a=12.0x10^-6/degree C for steel, B=950.0x10^-6/deg C for gasoline). Don't ...

*April 24, 2013*

**Physics**

A 100.0 cm long brass rod is heated from 20 degrees C to a final temp of 100 degrees C. Find the change in the length of the rod. (a-19.0x10^-6/degree for brass)

*April 24, 2013*

**Physics**

A constricted horizontal tube of radius r(1)=4.00 cm tapers to a tube of radius r(2)=2.50 cm. If water flows at speed 2.00 m/s in the larger tube, (a) find the speed of the water v(2) in the smaller tube. (b) Find the flow rate in this tube.

*April 24, 2013*

**Physics**

Assume that 60.0 m/s wind (during a hurricane) is blowing past a 1.50 m by 1.50 m glass windo in a house. Find (a) the pressure difference "delta"P=P(in)-P(out) and (b) the force (Magnus force)tending to blow this window outward. Let the air density p=1.20 kg/m^3.

*April 24, 2013*

**Physics**

A balloon of negligible mass is filled with helium gas (p=0.179 kg/m^3) until its volume is just large enough to lift a 25.0 kg load. (a) Find this volume. (b) Find the buoyant force exerted by air (p=1.29 kg/m^3) on the balloon.

*April 24, 2013*

**Physics**

A solid cube (side=2.54 cm) of aluminum (p=2.70x10^3 kg/m^3) is attached to a vertical cord. (a) Find the tension in the cord if the cube is in air. (b) Find the tension in the cord if the cube is fully immersed in water (p=1.00x10^3 kg/m^3).

*April 24, 2013*

**Algebra**

Simplify 6x-4(4x+1)+6x+12(4x^2+9x+2)

*February 19, 2013*

**Algebra**

Simplify 1(x+1)-7x(x^2+2x+1)

*February 19, 2013*

**Algebra**

Simplify 9a(a-7)-8+3(a)

*February 19, 2013*

**Algebra**

Correct the right hand side of the following expressions. (a) 5 x 5+x _ + _ = ____ 2 6 2+6 (b) 6x + 5 _______= x+5 6 (c) 1 1 1 _ +_ = ___ y c y+c

*February 18, 2013*

**Algebra**

Divide x^3y^2 xy^5 __________ / _________ x^2-3x-18 x^2-x-30

*February 18, 2013*

**Algebra**

Divide x^3y^2(x^2-3x-18)/xy^5(x^2-x-30)

*February 18, 2013*

**Algebra**

Multiply 16-n^2 n^2-7n-30 _________ __________ n^2-5n-36 * n^2-n-12

*February 18, 2013*

**Algebra**

Multiply 5a^3+4a^2 8b^6-6ab^6 _________ * __________ 6ab-8b 5a^2+4a

*February 18, 2013*

**Algebra**

Solve for y 9x-y=4

*February 16, 2013*

**Algebra**

6x+5 _____= x+5 6

*February 16, 2013*

**Algebra**

1-y^2 __________ y^2-4y-5

*February 16, 2013*

**Algebra**

{27a^4b^3} {66x^6y^6} ________ *_________ {22x^3y^3} {36a^6b^3}

*February 16, 2013*

**Algebra**

Write the binomial 1 − 27b3 as the difference of cubes.

*February 14, 2013*

**Algebra**

thsnk you steve

*February 13, 2013*

**Algebra**

Multiply {x^2+x-6} * {x^3y} _______ _________ {xy^2 } {x^2+6x+9}

*February 13, 2013*

**Algebra**

Divide {6x^3y^6} / {24x^4y^3} _______ _________ {16a^4b^2} {14a^7b}

*February 13, 2013*

**algebra**

Divide 6x^3y^6 / 24x^4y^3 _______ _________ 16a^4b^2 14a^7b

*February 13, 2013*

**Algebra**

Multiply. x^2+x-6 * x^3y _______ _________ xy^2 x^2+6x+9

*February 13, 2013*

**algebra**

Simplify. 2x^3-2x ________ 7x^3-14x^2+7x

*February 13, 2013*

**Algebra**

Simplify 1-y^2 ____________ y^2-4y-5

*February 13, 2013*

**ALGEBRA**

9x^2y 12xy^3

*February 12, 2013*

**Algebra**

On a map, two cities are 3 3/8 in. apart. If 3/8 in. on the map represents 45 mi, find the number of miles between the two cities. mi

*February 12, 2013*

**Algebra**

Solve for x. x − 8y + 8 = 0

*February 12, 2013*

**Algebra**

9x − y = 4

*February 12, 2013*

**Algebra**

5a^2b^2-10ab^2+25b^2

*February 5, 2013*

**Algebra**

how do you solve a^2-3a=0

*February 5, 2013*

**Algebra**

-3y^3+24y^2-36y

*February 5, 2013*

**Algebra**

ab^2+8ab-9a

*February 5, 2013*

**Algebra**

z^2+17z-60

*February 5, 2013*

**Algebra**

14z2 + 81z − 9

*February 5, 2013*

**Algebra**

5a2b2 − 10ab2 + 25b2

*February 5, 2013*

**Algebra**

y3 + 64

*February 5, 2013*

**Algebra**

As long as x is not zero, x0 is defined to be equal to . Using this definition, 30 = , (7x4)0 = , and −5x0 =

*February 4, 2013*

**algebra**

45x^2+42x+9

*February 4, 2013*

**Algebra**

35-2z-z^2

*February 4, 2013*

**Algebra**

a^-2a=48

*February 4, 2013*

**Algebra**

The sum of the squares of two consecutive positive even integers is one hundred sixty-four. Find the two integers.

*February 4, 2013*

**Algebra**

y^4-10y^3+21y^2

*February 4, 2013*

**algebra**

(a-3)(a+7)=-9

*February 3, 2013*

**algebra**

5y(y+7)=7(y+7)

*February 3, 2013*

**Algebra**

(a-3)(a+7)=-9

*February 3, 2013*

**Algebra**

14z^2+81z-9

*February 3, 2013*

**Algebra**

The height of a triangle is 8 m more than twice the length of the base. The area of the triangle is 32 m^2. Whats the height of the triangle

*January 30, 2013*

**statistics**

Then, for the following two examples, determine the null and alternative as well as state which one represents the claim. State what type of test will be completed: left-tailed, right-tailed, or two-tailed. The average score of the first exam for the class is an 81%.Claim 2: ...

*December 16, 2012*

**business planning**

a sentence describing a service with the word eminence.

*April 1, 2011*

**HCS 310**

ORGANIZATION AL ANALYSIS · Select one public sector not-for-profit health agency within the United States health care system. · Prepare a 1,050-1,400 word paper in APA format describing the type of health organization: government, quasi-government, or voluntary. ...

*May 7, 2010*

**arithmetic**

what is the explicit formula of the sequence 3,1,-1,-3,-5

*February 4, 2010*

**health**

A healthful diet and regular exercise not only improves health, but lowers health care costs.

*January 25, 2010*

**8th grade**

i believe so check with your parents and ask them but im pretty sure it does

*October 27, 2008*

**algebra**

6(x+1)=12(x-3)

*August 11, 2008*

**chemistry**

A thin apron is used in dental offices to protect patients from harmful xrays. If the sheet measures 75.0 cm by 55.0 cm by .10cm and the density of lead is 11.3 g/cm3 what is the mass of the apron in grams?

*March 7, 2007*

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