Total # Posts: 787
Right now in physics we are learning about electric potential energy and electric potential. My question is: P and Q are points within a uniform electric field that are separated by a distance of 0.1 m. The potential difference between P and Q is 50 V. How much work is ...
January 9, 2015
In Mr. Johanessen's class, 1/4 of the students failed the final exam. Of the remaining class, 1/3 scored an A. What fraction of the whole class passed the test but scored below an A?
January 8, 2015
Using the numbers 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. Explain why the result of your operations is an ...
January 6, 2015
Science help URGENT
Muscles located in the walls of the small intestine help push digested material along. Muscles located in the walls of arteries help push blood along. Based on this information and your understanding of muscle types, which of the following statements is correct? Both sets of ...
November 20, 2014
ALGEBRA Help Please
Decide whether each equation has one solution, no solution or infinitely many solutions 2(x - 3) = 2x 3(y - 3) = 2y - 9 + y 10x - 2 - 6x = 3x - 2 + x 4(x + 3) + 2x = x - 8 Please Show how you did it if possible please thanks! :)
November 19, 2014
The cholesterol levels of adult American women are approximately normal with the mean of 188 mg/dl and a standard deviation of 24 mg/dl. a company wants to test a certain medication for women falling in the highest 15% of cholesterol readings. what is the lowest cholesterol ...
November 17, 2014
Algebra Help URGENT Please?
Jamie is a salesperson in a shoe store and earns $95 per week, plus 20% of her weekly sales. If Jamie makes $475 in one week, what are her sales for that week?
November 11, 2014
Algebra help URGENT Please?
Chris and five of his friends go out to dinner. The total bill comes to $124.29. They decide to leave a 20% tip. Each person will contribute an equal amount to the total tip. Estimate what each person should contribute. a$29.00 b$21.00 c$5.00 $4.15
November 11, 2014
The coordinates of quadrilateral VXY Are given below. Find the coordinates of its image after a dilation with the given scale factor V(6, 2), W(-2, 4), X(-3, -2), Y(3, -5) scale factor of 2 This question is confusing me and is worth 3 points please help :)
October 18, 2014
Math, Help Please IF you can
Chapter 6, Section 6.1, Question 036 The function g(x) is obtained by shifting the graph of y=x^2 If g(3) = 25 (a) g is the result of applying only a horizontal shift to y=x^2 g(x) = (b) g is the result of applying only a vertical shift to y=x^2 g(x) = g left-parenthesis x ...
October 10, 2014
MATH HELP PLEASE
1. What is the product of (5.1 × 10^3) (3.2 × 10^3)? (1 point) 16.32 × 10^6 1.632 × 10^7 16.32 × 10^9 1.632 × 10^10 2. What is the product of (7.28 × 10^-2) (9.1 × 10^-2)? (1 point) 6.6248 × 10^-3 66.248 &...
September 30, 2014
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 852 N and the drag force has a magnitude of 1012 N. The mass of the sky ...
September 25, 2014
Dust mites are microscopic bugs that are too small to see with a dissecting microscope. To see the details of a dust mites skin, which of the following microscopes would you use? A. dissecting microscope B. compound microscope C. transmission electron microscope D. ...
September 24, 2014
Maggie is making fruit punch. She uses 2 1/2quarts of grape juice and 1 1/2 quarts of orange juice. 1 quart of grape =$1 less and 1 quart of orange juice. The total cost to make the fruit punch is $12.50 how much is each quart of each juice?
September 23, 2014
An object is thrown upward from the top of a 10.0m high building at a speed of 10.0m/s. How fast is the object moving when it reaches the bottom of the building? The answer is 17.2 m/s but how?
September 22, 2014
Your instructor will walk at constant velocity beneath the announcer's booth of the varsity baseball field (a two-story tower). Your teammate will stand tall on top of the announcer booth's steps, with her or his dropping hand raised above his/her head. The egg must ...
September 21, 2014
Law of Cosines
i.imgur. com / CvoC1sB.jpg I'm confused about how to submit a link, but attached is the problem because there is a diagram. I did part of it, but I'm stuck! I put in spaces.
September 13, 2014
use only the 6,+,-,x,divided,and = keys on a calculator to get the display to say 7. you can use these keys as many or as few times as you need,but you can't use any other keys. Record your way
September 1, 2014
You are at a archeological dig an discover a strange artifact. It is a utinsil tha appears to be carved out of an elephant's tusk You analyze it and discover that it has 0.625 the amount of carbon -14 you woul find in a living specimen. How many half lives has the specimen...
August 24, 2014
Charge A has a charge of +2 C. Charge B has a charge of - 3 C and is located 1 meter to the right of A. Charge C is located 1 m to the right of charge Band has a charge of -1C. If a fourth charge (Charge D) is placed 4 m to the right of Charge B, How much charge must it ...
August 23, 2014
The number of vacation days taken by employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? More than 21 days?
August 17, 2014
The Human Resources Department of Apex Manufacturing Company wants a report that shows its employees the benefits of saving for retirement. Produce a report that shows 12 predicted retirement account values for each employeethe values if the employee saves 5, 10, or 15 ...
August 5, 2014
The Fridge-Air Company's preferred stock pays a dividend of $4.50 per annually. If the required rate of return on comparable quality stocks is 14 percent, calculate the value of Fridge-Air's preferred stock.
August 5, 2014
how to write c# program that will calculate for the average of positive integer inputs from 0 to n. Also determine the number of input for numbers that are greater than 10, 30, 50, 70, and 90.
July 2, 2014
3. Create the logic for a program that accepts input values for the projected cost of a vacation and the number of months until vacation. Pass both values to a method that displays the amount you must save per month to achieve your goal.
May 13, 2014
Consider the following reaction at constant P. Use the information here to determine the value of ΔSsurr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature. 4 NH3(g) + 3 O2(g) → 2 N2(g) + 6 H2O(g); ΔH = -1267 kJ A)ΔSsurr...
May 5, 2014
Your vertical spring accelerometer has a 40 g mass hanging from it. You climb aboard the roller coaster that starts at rest and watch the accelerometer read 0.45 for 5 seconds while descending the first peak and then change to 2.8 for 2.5 seconds while going through the bottom...
April 28, 2014
A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c represent the additional ...
April 22, 2014
Sara drives 72 miles on 3.2 gallons of gas. She uses this information to calculate how many miles per gallon she can drive. Using this result, how many miles can Sara drive on 13.3 gallons of gas?
April 9, 2014
A ramp 20m long slopes down 1.2m to the edge of a lake. A force of 300N is needed to pull a boat on a trailer at constant speed up the ramp when they are clear of the water. If friction is negligible, what is the combined mass of the boat and trailer. Hints: Calculate MA of ...
February 16, 2014