PEG

Most popular questions and responses by PEG
1. physics

A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.

asked on May 19, 2014
2. Science Physics

Madison pushes with a 160-N horizontal force on a 20-kg crate of coffee resting on a warehouse floor. The force of friction on the crate is 80 N. Show that the acceleration is 4 m/s2.

asked on May 17, 2014
3. physics

A rocket of mass 100,000 kg undergoes an acceleration of 2 m/s2. Show that the net force acting on it is 200,000 N.

asked on May 17, 2014
4. physics

Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56 s.

asked on May 31, 2014
5. physics

Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.

asked on May 19, 2014
6. algebra

2. How many pounds of chocolate worth \$1.20 a pound must be mixed with 10 pounds of chocolate worth 90 cents a pound to produce a mixture worth \$1.00 a pound? What Do I Know? What Do I Want to Know? Assign Variables Write a verbal Model: How Do I Find the

asked on November 17, 2010
7. work test

ryan discounts an 80-day note for \$15,000 at 12 percent. the bank discount is: (assume ordinary interest)

asked on December 19, 2012
8. algebra

How many solutions does the following system have: 6x - 3y = 9 2x - y = 3 Explain how to determine the number of solutions without solving the system. Then apply elimination, and interpret the resulting equation. could you please explain this to me?

asked on March 2, 2011
9. Math

In the tradition of their Native American ancestors, Decorah Custom Canoes specializes in creating handcrafted canoes using the finest natural materials. Whether they are from birch bark or cedar, all canoes are custom-built from native wood. Each piece is

asked on July 19, 2014
10. algebra

2. How many pounds of chocolate worth \$1.20 a pound must be mixed with 10 pounds of chocolate worth 90 cents a pound to produce a mixture worth \$1.00 a pound? What Do I Know? What Do I Want to Know? Assign Variables Write a verbal Model: How Do I Find the

asked on November 17, 2010
11. physics

Why do the passengers in high-altitude jet planes feel the sensation of weight while passengers in the International Space Station do not?

asked on May 19, 2014
12. algebra

Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications. Compare how quickly each

asked on March 24, 2011
13. algebra

Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications. Compare how quickly each

asked on March 23, 2011
14. algebra

expression undefined 1/(2x^2 - 50) Could you please show me how to do this? thank you

asked on March 11, 2011

Simplify the following algebraic expressions: Evaluate; P(-1/2) if P(x)= 2X^4 + X^3 + 12

asked on March 9, 2011
16. algebra

Simplify the following algebraic expressions: Evaluate; P(-1/2) if P(x)= 2X^4 + X^3 + 12

asked on March 9, 2011
17. algebra

Graph the following equation: clculte the slope, x-intercept, and y-intercept, and label the the intercelts on the graph. problem: Find an equationin slope-intercept form passing through the points (2,5) and ( 7,-3). (2+5)/(7+ -3) = 7/4 so y = (7/4)x +b

asked on February 27, 2011
18. algebra

Sales tax in Pennsylvania is 6%. Create an equation for the total price (cost plus tax) of a purchase in PA in terms of its cost. How much would a person pay for a car whose cost is \$32,000? PAY = COST + 0.06 * COST P=C(1+1.06) P=1.06C P= (32,000)=

asked on February 27, 2011
19. algebra

The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the

asked on February 21, 2011
20. Help

In the tradition of their Native American ancestors, Decorah Custom Canoes specializes in creating handcrafted canoes using the finest natural materials. Whether they are from birch bark or cedar, all canoes are custom-built from native wood. Each piece is

asked on July 28, 2014
21. Science Physics

Sophia exerts a steady 40-N horizontal force on a 8-kg box resting on a lab bench. The box slides against a horizontal friction force of 24 N. Show that the box accelerates at 2 m/s2.

asked on May 17, 2014
22. math

the function h(x)=1/98x^2 h(x) is the height of part of a rollercoaster track, when x is the horizontal distance in feet from the center of this section of the track the tower that supports the this part of the track are the same height and are 150 feet

asked on December 21, 2013
23. algbra

Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications. Compare how quickly each

asked on March 23, 2011
24. algebra

Graph the following equation: clculte the slope, x-intercept, and y-intercept, and label the the intercelts on the graph. problem: Find an equationin slope-intercept form passing through the points (2,5) and ( 7,-3).

asked on February 27, 2011
25. Economics

What economic impact does a recession have on the finances on a health care facility? On the health care system? Could you direct me to a web site

asked on September 20, 2011
26. algebra

Determine whether each binomial is the difference of two square. If so, factor it. If not, explain why. -m^6

asked on March 22, 2011
27. algebra

Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. Find the area of a rectangle if three of its corners are (-0.1,-3.4), (-7.9,-3.4), and (-0.1,6.8).

asked on February 28, 2011
28. ALGEBRA

Sales tax in Pennsylvania is 6%. Create an equation for the total price (cost plus tax) of a purchase in PA in terms of its cost. How much would a person pay for a car whose cost is \$32,000? PAY = COST + 0.06 * COST P=C(1+1.06) P=1.06C P= (32,000)=

asked on February 26, 2011
29. office procedure

you can place overseas calls directly if your company has the proper connection for

asked on May 3, 2010
30. algebra

Determine whether each binomial is the difference of two square. If so, factor it. If not, explain why. -m^6

asked on March 22, 2011
31. Math

2independant alternators. probabalitity one will fail in a 1 hour flight is .02 what is the probablility both will

asked on July 24, 2010
1. math algebra 1

Amy is running a race. She runs 7 miles at 11.12 per mile. How many hours does she run?

posted on September 5, 2016
2. Science

Convection currents

posted on March 29, 2013
3. algbra

So if you saw my posting earlier why wouldn't you answer it, I just didn't plug it in because I wanted to for my health. I needed help that what I though you were here for not sarcism. I can't help the problem the professor gives me to work with, you may

posted on March 23, 2011