Wednesday

January 18, 2017
Total # Posts: 11

**physics**

An ideally efficient freezer cools food to 260 K. If the room temperature is 300K, how much work does the freezer consume when removing 100J heat from the food?

*April 8, 2013*

**physics**

you drop a marble from rest and after 1 second its velocity is 9.8 in the downward direction-what is the velocity after falling 0.5 secs?

*January 30, 2013*

**physics**

a ramp was used to lift 25000kg block. block rose 2m in height traveling 30 m along the ramps surface how much uphill friction is needed to push it up the ramp at constant velocity?

*January 30, 2013*

**HELP A.S.A.P. PLEASE: linear programming-maths**

A company makes tennis and squash rackets. Each tennis racket requires two units of aluminum and one unit of nylon. Each squash racket requires 1.8 units of aluminum and 0.8 units of nylon. The company has 1000 units of aluminum and 800 units of nylon available. The company is...

*October 28, 2012*

**maths**

BEGGING FOR HELP!!! EXAM IN 20 MINS LOST ON HOW TO DO THIS Q. Company has $ 20 million dollars for two types insurance. Insurance A-homeowners have a 10% annual return. Insurance B-Auto has a 12% annual return. The total amount of Homeowners Loans should be greater than or ...

*October 22, 2012*

**MATH**

HELP? Exam in 20 mins -dont' have any idea how to do this question; please helpp.. anyone! PLEAZE A.S.A.P. minimize p= 15x +18y subject to x+2y<=20 3x + 2y>= 36 x>=0 y>=0

*October 22, 2012*

**MATH-Linear Programming**

Hey guys stumped on this one \HELP PLEAZE A.S.A.P. minimize p= 15x +18y subject to x+2y<=20 3x + 2y>= 36 x>=0 y>=0

*October 21, 2012*

**linear programming-maths**

Thanks Steve for the answer: maximize 25a + 40b a + b <= 2500 200a + 300b <= 600000 Make 2000 machine B for a profit of 80,000

*October 21, 2012*

**linear programming-maths**

PLEASE HELP!!!!!!! machines A &B. Model A machines each cost $200 to make at a profit of $25 each. Model B cost $3oo to make at a $40 profit. Total number of machines do not exceed 2500 a month. Company has no more $600,000 per month for manufacturing cost. Whats the number of...

*October 21, 2012*

**math**

machines A &B. Model A machines each cost $200 to make at a profit of $25 each. Model B cost $3oo to make at a $40 profit. Total number of machines do not exceed 2500 a month. Company has no more $600,000 per month for manufacturing cost. Whats the number of units A and B ...

*October 20, 2012*

**math**

minimize p= 15x +18y subject to x+2y<=20 3x + 2y>= 36 x>=0 y>=0

*October 20, 2012*

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