# DJ

Popular questions and responses by DJ
1. ## physics

An elevator (mass 4125 kg) is to be designed so that the maximum acceleration is 0.0400g. What is the maximum force the motor should exert on the supporting cable? What is the minimum force the motor should exert on the supporting cable?

asked on October 8, 2009
2. ## software

The questions ask List four major functions of an OS. My answer: Function 1: Provide a user interface Function 2: Manage files Function 3: Manage hardware Function 4: Manage applications Is my answer correct?

asked on February 12, 2013
3. ## physics

An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?

asked on September 26, 2009
4. ## Geometry

A regular hexagon is made from equilateral triangle by cutting along the dotted lines and removing the three smaller triangles. if triangle has a perimeter of 18, what is the perimeter of hexagon?

asked on June 10, 2010
5. ## Science

Angiosperms & Gymnosperms both produce? A.)Flowers B.)Cones C.)Spores D.)Seeds

asked on September 28, 2015
6. ## College Cal 1

A farmer wants to fence off a rectangular field of area 15000 square feet using barbed wire fencing. SInce the opposite of the road is a corn-field, he wants a two-strand fence along the road, and one strand on each of the other three sides. What are the

asked on April 14, 2014
7. ## math problem

very confused could someone help me with this using the elimination method 5r-3s=16 3r+5s=30

asked on January 21, 2012
8. ## Physics Work and Energy

A 55 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 5.5 m/s. (Ignore small changes in gravitational potential energy.) (a) How fast is he going as he lands on the trampoline, 3.0 m below? (b) If the trampoline

asked on November 23, 2009
9. ## Algebra

The volume of a cylinder varies jointly as the height of the cylinder and the square of its radius. If the height is doubled and the radius is halved, determine the effect on the volume.

asked on January 29, 2020
10. ## Organic Chemistry

what is the major product of a reaction with 1-butene and Br2 in water?

asked on October 23, 2012
11. ## MATH PROBLEM

COULD I GET HELP SOLVING THIS PROBLEM USING THE DISTRIBUTIVE PROPERTY 5(W-5)= 10 W =

asked on January 21, 2012

A person whose eyes are H = 1.62 m above the floor stands L =2.24m in front of a vertical plane mirror whose bottom edge is 43 cm above the floor. What is the horizontal distance x to the base of the wall supporting the mirror of the nearest point on the

asked on March 8, 2010
13. ## Physics - Work and Energy

Jane, looking for Tarzan, is running at top speed (3.6 m/s) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward? Does the length of the rope matter?

asked on November 16, 2009

Hidden meaning? PPPP --------- earth Thanks!

asked on September 6, 2007
15. ## math

Last year, Lucy deposited $3000 into an account that paid 5% interest per year and$7000 into an account that paid 4% interest per year. No withdrawals were made from the accounts.

asked on March 8, 2017
16. ## math

a scale drawing has a scale of 1cm:3m explain how the scale can be used to find the actual distance between objects in the drawing

asked on October 22, 2015
17. ## Algebra

The area of a rectangle is 21 ft^2,and the length of the rectangle is 1 ft less than twice the width. Find the dimensions of the rectangle.

asked on November 3, 2014
18. ## chemistry

When the concentration of CH3Br and NaOH are both 0.150M, the rate of the reaction is 0.0020M/S. (a) What is the rate of the reaction if the concetration of CH3Br is doubled? _______________M/s (b) What is the rate of the reaction if the concentration of

asked on February 27, 2013
19. ## physics

b. If you are cruising down the road at 50 mph and a policeman with a radar gun (wavelength 1 cm) reflects radar light off your bumper, what wavelength of radar light does he get back? Assume the policeman is stationary, and you are moving towards him.

asked on April 15, 2012
20. ## Physics 101

A 90-dB sound is absorbed by an eardrum 0.75 cm in diameter for 2 hours. How much energy in joules does the eardrum absorb at that time?

asked on May 19, 2011
21. ## Physics

Two Q = +6.72 mC charges are placed at opposite corners of a square d = 1.5 m on each side, and -Q = -6.72 mC charges are placed at the remaining corners, as shown in the figure. Q___________-Q | | | | | | | | -Q__________Q

asked on April 8, 2010
22. ## science

measurement of an average classroom door is closest to 1 meter

asked on February 12, 2009
23. ## science

measurement of an average classroom door is closest to 1 meter

asked on February 12, 2009
24. ## math

Kendra is using 27 blue patches and some white patches to make a quilt. The quilt has a total area of 540 square inches. Each patch has an area of 5 square inches. How much of the area of the quilt is white? Explain.

asked on January 7, 2018
25. ## I need help!

what is blogging A.online journaling B.posting in photo galleries C.uploading movie online D.sharing photos on a social network i think its A or D

asked on January 3, 2018

You and some friends rent a limousine for a formal reception the bill for the evening is $53.00. A tax of 6% will be added to your total. And you want to tip the chauffeur for his excellent driving. you decide to leave him a tip that is 20% of the bill asked on January 2, 2018 27. ## I need help! Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 6 4/5 a. 68% b. 6.8% c. 6.4% d. 680% asked on January 2, 2018 28. ## Correct me if i'm wrong A bike was originally$240.00. The price war marked up 15%. What is the new price of the bike? A. $250.00 B.$264.00 C. $268.00 D.$276.00***

asked on December 30, 2017
29. ## Physics

10 mol of an ideal gas expands isothermally at 373 K to 2.6 times its initial volume. Find the heat flow into the system. The universal gas constant is 8.31 J/K · mol. Answer in units of J. Any help much appreciated, I have no idea where to begin with

asked on April 16, 2017
30. ## History

1.)Studies conducted in england during the industrial revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The most likely expalanation for this difference in hieghts is a difference in

asked on October 20, 2015
31. ## Math,Science,Algebra,Geography

Beryl Really Likes taking care of all the details needed to finish up a project. Her Belbin Team Role is? A.)Computers/Finisher B.)Resource/Investigate C.)Sharper D.)Plant

asked on September 30, 2015
32. ## Math,Science,Algebra,geography

The 3 Letter code that summaries your 3 strongest career types is called your? A.)Holland-Code B.)Myers-Briggs Type C.)Teamwork Profile D.)Beblin Code

asked on September 30, 2015
33. ## Science

which pair of terms correctly completes the diagram with (a) before "spores" and (b) after "spores"

asked on September 28, 2015
34. ## CHEMISTRY

How many atoms of carbon are present in 12.9 g of a compound that is 36 .7% carbon, by weight? Answer in units of atoms.

asked on March 13, 2015
35. ## aldrabra

Write a rule for the linear function in the table. x f(x) –4 16 0 0 4 –16 8 –32 A. f(x) = –4x B. f(x) = x + 16 C. f(x) = 4x D. f(x) = -1/4x

asked on January 8, 2014
36. ## Math

The height of a parallelogram with an area of 300 square yards and a base of 15 yards and 1 more question A rectangle has verticles W(2,3) X (2,6) Y(7,6) and Z(7,3) Describe how to find the side lengths of the rectangle without graphing

asked on March 6, 2013
37. ## Statistics

Can you explain confidence intervals as it relates to the results of this obesity study? Results. Of 3069 sampled students, 2681 (87%) were measured. The prevalence of overweight was 43% (95% confidence interval [CI] = 39%, 47%), more than half of whom

asked on January 7, 2013
38. ## Chemistry

What is the ionic equation for hydrolysis reaction of NH4C2H2O2 ? Thanks.

asked on October 22, 2012
39. ## statistics

A vending machine dispenses coffee into a sixteen ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 ounces. You can allow the cup to overfill 10% of the time. What amount (in ounces) should you

asked on May 25, 2011
40. ## Statistics

A computer manufacturer is about to unveil a new, faster personal computer. The new machine clearly is faster, but initial tests indicate there is more variation in the processing time. The processing time depends on the particular program being run, the

asked on March 25, 2011
41. ## criminal justice

what are 2 major influencing factors and how dose federal sentencing guidelines have an effect on these influences

asked on November 30, 2010
42. ## chemistry

what is the molecular mass of a solute if a solution containing 150 g of that solute and 1.0 kg of water has a boiling point of 102.0 degree c? (Kb= 0.512 degree C/m)

asked on November 28, 2010
43. ## chemistry

How many {\rm NO}_{2} molecules would form as products if the reaction had a percent yield of 75\%?

asked on September 20, 2010
44. ## MATH

Joe bought 2 dozen eggs at the store. On the way he dropped the eggs and broke 3/4 of them. How many eggs broke?

asked on December 8, 2009
45. ## home economics

what are ten careers in home economics

asked on December 4, 2009
46. ## physics

A window washer pulls herself upward using the bucket-pulley apparatus. The mass of the person plus the bucket is 69 kg.How hard must she pull downward to raise herself slowly at constant speed?If she increases this force by 11 percent, what will her

asked on October 13, 2009
47. ## english

Which of the following is the best opening sentence for a business letter that you want to sound fairly informal? A. I am in receipt of your order of February 10. B. This letter is to make you cognizant of our receipt of your order. C. Your order of

asked on February 28, 2009
48. ## Math

Write 1024 as a power of 4.

asked on September 13, 2008
49. ## science

why do we celebrate earth day? is it important to celebrate earth day?

asked on April 18, 2008
50. ## science

Can someone help me with this question please? explain how earth naturally recycles carbon dioxide.

asked on April 10, 2008
51. ## science

If Earth is 149.6 million Kilometers from the sun, or 93 million miles away. suppose there was an imaginary road from earth to the sun. If you were in a car traveling 100 km an hour, it would take you 1,490,000 hours or just 170 years to reach the sun. If

asked on April 2, 2008
52. ## science

Give example of constructive and destructive interference sound waves?

asked on February 9, 2008
53. ## Science

What are some Positive effects of Genetic Engineering and Negative effects of Genetic Engineering.

asked on June 1, 2020
54. ## Math

there were 35 student in gym class.if they were separated in to teams of 7, how many people would be on each team. what is the number model you used to sove this? please use a drawing to show your work.[4oa2]

asked on April 1, 2020
55. ## English

(1)Everything I know about gardening I learned from my good friend Sandy.(2)When I first moved from Iowa to Georgia last May, I tried planting a vegetable garden right away.(3)As I happily weeded the ground I thought to myself, "My garden's produce will be

asked on October 14, 2019
56. ## Pre-Algebra

1. What is the product of (5.1x10^3)x(3.2x10^3) A. 16.32 x 10^6 B. 1.632 x 10^7 C. 16.32 x 10^9 D. 1.632 x 10^10 2. What is the product of (7.28x10^-2)(9.1x10^-2) A. 6.6248 x 10^-3 B. 66.248 x 10^-4 C. 6.6248 x 10^4 D. 66.248 x 10^-3 3. What is the

asked on September 24, 2019
57. ## math

(-6)+(-3) - (-1) - (4)

asked on August 2, 2019
58. ## Algebra

A machining company manufactures washers. The dimensions of the washer are 2cm for the inner circle and 4cm for the outer circle. And the inner and outer radii is positive and negative 2. The range of acceptable values is called the tolerance. Write an

asked on September 19, 2018
59. ## math

anonymous did you ever get all the correct answers?

asked on May 25, 2018

find 21/25 of $27,000 A.$32,140 B.$5,670 C.$22,680*** D.$23,760 asked on January 2, 2018 61. ## I need to make sure this is right! Order from least to greatest. 0.29, 2/7, 25%, 0.2 25%, 0.2, 2/7, 0.29 0.2, 25%, 2/7, 0.29 *** 0.29, 2/7, 25%, 0.2 0.29, 2/7, 0.2, 25% asked on January 2, 2018 62. ## I need help! 1. Write a ratio and a percent for the shaded area. A 6x6 grid with 12 blocks shaded i don't want the answer i just need help figuring this out. asked on January 1, 2018 63. ## Physics A rollPhyer coaster loaded with passengers has a mass of 2000kg; the radius of curvature of the track at the lowest point of the ride is 24m. If the vehicle has a tangental speed of 18m/s at this point, what force is exerted on the vehicle by the track? asked on November 26, 2017 64. ## Check Answers: Web Browser IMG SRC =imaginaryurls/images/page2/photo.gif What file is being called by this IMG tag? My Answer: /images/page2/photo.gif What type of link is used to call this file? My Answer: HTML???? asked on April 28, 2017 65. ## Physics A uniform rod of mass 444 g and length 1.41 m is pivoted about one end and oscillates in a vertical plane. Find the period of oscillations if the amplitude of the motion is small. The acceleration of gravity is 9.8 m/s^2. Answer in units of s. asked on April 23, 2017 66. ## Math A cylindrical juice glass is 8 centimeters tall and has a diameter of 6 centimeters. If the glass is ¾ full, find the volume of the juice in the glass. asked on April 21, 2017 67. ## Writing What audience was “Why, You Reckon?” short story by the author Langston Hughes written for? asked on March 6, 2017 68. ## Physics A 231 kg block is released at height h = 3.9 m. The track is frictionless except for a portion of length 6.6 m. The block travels down the track, hits a spring of force constant k = 1624 N/m, and compresses it 1.7 m from its equilibrium position before asked on February 26, 2017 69. ## Physics A 231 kg block is released at height h = 3.9 m. The track is frictionless except for a portion of length 6.6 m. The block travels down the track, hits a spring of force constant k = 1624 N/m, and compresses it 1.7 m from its equilibrium position before asked on February 26, 2017 70. ## Math Alex bought 9 tickets for$30. Adult tickets cost $4 and children's cost$2. How many children's tickets did he purchase?

asked on February 16, 2017
71. ## Math

if the union member is able to invest their $12,000 is a fund that pays 1.8% compounded continuously, in how many years will the future values be worth$20,000?

asked on February 13, 2017
72. ## english

(b) Choose two of the scientists you read about in the Stories of Scientists unit. Compare and contrast these scientists. Answer this question in no fewer than two paragraphs. Be sure to include specific details about each scientist’s life, career, and

asked on January 27, 2017
73. ## Civics

How did the ideas of Locke and montesquieu influence our founders views on our government?

asked on October 3, 2016
74. ## Science

A species with two colour variation one mostly green and one is brown.How might populations of species change if the environment becomes a patchwork of tiny green and brown splotches? tnx.

asked on September 7, 2016
75. ## Science

How do the colour of survivor animals relate to their habitat background? possible explanation tnx a lot

asked on September 6, 2016
76. ## Science

what are some barriers to solve the zika virus problem? What are some possible solutions for zika virus problem? According to the off the podium article about zika virus. tnx a lot .

asked on August 31, 2016
77. ## Humanities

Why is the Nice France Attack matters to you right now? *I already wrote a short paragraph but I need one more short paragraph to make it two. Can someone help me. Thanks a lot.

asked on August 23, 2016
78. ## social

Please. Can someone help me write chapter 31 of the "Pay Forward Book" by Catherine Ryan Hyde. The book only have 30 chapters and we are ask to write chapter 31. Thank you

asked on May 9, 2016
79. ## social

Can someone help me write the chapter 31 of the "Pay it Forward Book" by Catherine Ryan Hyde. Thank You

asked on May 9, 2016
80. ## MATH

1 3/4 cups of milk for 8 serving if the recipe increase to 24 serving how many cups of milk are needed. I

asked on February 18, 2016
81. ## MATH

1 3/4 cups for 8 serving if the recipe increase to 24 serving how many cups of milk are needed

asked on February 18, 2016
82. ## Social studies

Can someone make me a fractured fairy of Cinderella. Exposition? Initial incident? Rising Action? Climax? Resolution? THANK YOU.

asked on January 23, 2016
83. ## Science

Describe how changes in society's attitude toward people in wheelchairs may have led changes in the wheelchair available to people who need them.Were these changes made using science or technology or both? Thank you.

asked on January 21, 2016
84. ## Science

How science has been used to improve the vehicles that we drive today?

asked on January 21, 2016
85. ## History

1.)Studies conducted in england during the industrial revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The most likely expalanation for this difference in hieghts is a difference in

asked on October 21, 2015
86. ## Science

What is the difference between the density of cold water and the density of hot water.. Explain using the particle theory of matter. Thank You......

asked on October 19, 2015
87. ## Physics

A hot-air balloon is rising upward with a constant speed of 2.65 m/s. When the balloon is 3.40 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

asked on October 7, 2015
88. ## Math,Science,Algebra,Geography

the personality type theory that gives people codes based on their levels of four traits, including sensing-intuition or making of thinking-feeling is called the? A.)Holland Code B.)Myers-briggs C.)Beblin Roles D.)Team Work Profiles

asked on September 30, 2015
89. ## math

Jeremy enlarged a picture.The length of the original picture is 8cm and the width is 5cm.The length of the enlarged picture is 10cm and the width is 7cm. A.What percent is the 10cm length of the 8cm length? B.What is the area of each picture?By what

asked on September 28, 2015
90. ## Science

In ferns, the sporophyte produces(1 point) A.)CONES,WHICH GROW INTO A GAMETOPHYTE B.)GAMETES, WHICH GROW INTO A GAMETOPHYTE C.)SPORES, WHICH GROW INTO A GAMETOPHYTE D.)SEEDS, WHICH GROW INTO A GAMETOPHYTE ?

asked on September 28, 2015
91. ## stats

A sample has a mean of M = 73 and a standard deviation of s = 5

asked on June 18, 2015
92. ## chemistry

If the theoretical yield of a reaction is 0.173g and the actual yield is 0.165g , what is the percent yield?

asked on June 15, 2015
93. ## chemistry

Stainless steel is an alloy of iron containing 5 percent nickel and 0. 175 percent chromium. How much chromium is present in a 72.2 g sample of this alloy? Answer in units of mol.

asked on March 13, 2015
94. ## chemistry

What is the % carbon by weight in 1.7 grams of potassium carbonate (K2CO3)? Answer in units of %.

asked on March 13, 2015
95. ## Kennedy King

Present Value of an Annuity Sandra and Regina earn the same salary. However, Regina has been far more financially responsible. She pays her bills on time and pays off her credit card debt quickly. Sandra had been less financially responsible. She often

asked on October 12, 2014
96. ## geometry

The lateral area of the right regular triangular prism is 18 cm^2.Find the total surface area.give your answer in decimal form rounded of to 2 decimal places

asked on June 4, 2014
97. ## math

how much money do I need to deposit today to end up with 13000.00 in 3 years with interest rate 6.5

asked on October 7, 2013
98. ## 7th grade pre-algebra

The problem is a(a-c)=23. Solve for c if both a and c are positive numbers. Thanks

asked on September 23, 2013
99. ## Psychology- the Science of the Mind

A reflex, like automatically removing your hand from a hot stove, involves pain message sent to the spinal cord by___neurons, while the movement of your hands is controlled by____ neurons. A. somatic ;sensory B. sensory; motor C. motor; sensory D. somatic;

asked on July 2, 2013
100. ## math

The first term of a geometric sequence is -2 and the common ratio is 3. What is the 12th term of the sequence?

asked on May 24, 2013

1. 1
2. 2
3. 3