1. Physics

Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.6 m/s2 for 4.5 seconds. It then continues at a constant speed for 7.3 seconds, before applying the

2. Science

Compare renewable and nonrenewable energy sources, and discuss the effects of each on biodiversity.

3. physics

A car moving at 50 km/h skids 15 m with locked brakes. Show that a car moving at 150 km/h will skid 135 m with locked brakes. (Hint: The force doing work during the skidding is the same for both speeds. Use the work–energy theorem.)

4. math

Adan drew 2 same size rectangles and divided them into the same number of equal parts. He shaded 1/3 of one rectangle and 1/4 of the other rectangle. What is the least number of parts into which both rectangles could be divided?

5. science

which of the following is a quantitative property of minerals ? a) cleavage b) hardness c) luster d) streak which of the following is not a characteristics of minerals ? a) occur in gaseous and liquid state b) formed by inorganic processes c) naturally

6. physics-forces

1. a fully loaded rocket has a mass of 2.92x10^6kg. It's engines has a thrust of 3.34x10^7N a)what is the downward force of gravity of the rocket at blast off? b)what is the unbalanced force on the rocket at blast off? c)what is the accleration of the

7. Science

Translate into a sentence: 2NaHCO3 --> Na2CO3+H2O+CO2

8. math

write the pair of the fractions as a pair of fractions with a common denominator : a.) 2/4 and 7/8. b.) 3/10 and 1/2. my answer for the a.) is 16/32-28/32. for b.) is 6/20-10/20 please let me know is my answers is right or not

9. computer applications

Microsoft word graded project lesson number...038189

10. Physics-forces

1. Harry is pushing a car down a level road at 2.0m/s with a force of 243N. The total force acting on the car in the opposite direction, including road friction and air resistance, is which of the following? a) slightly more than 243N b) exactly equal to

11. chemistry

1- A compound is 87.5% nitrogen and 12.5% hydrogen. The molecular weight of the compound is 32 g/mol. Describe the molecule referencing shape, and inter-molecular forces. 2- Gaseous butadiene, C4H6 , reacts with hydrogen gas in the presence of a platinum

12. Physics

A power plant burns coal and generates an average of 630.0 MW of electrical power while discharging 1058.40 MW as waste heat. Find the total electrical energy generated by the plant in a 30-day period.

13. Science

he specific heat of gold is 0.031 cal/g°C. Fifty grams of gold will require ____ calories to raise the temperature 1°C. 3.1 6.2 1.55 50

14. Math help :(

I don't get any of these practice problems. 5. 2(x – 3) = 2x one solution no solutions infinitely many solutions 6. 3(y – 3) = 2y – 9 + y one solution no solutions infinitely many solutions 7. 10x – 2 – 6x = 3x – 2 + x one solution no solutions

15. chemistry

Acetic acid (CH3CO2H) is a weak acid. As a result, a solution of sodium acetate (NaCH3CO2) will be _____.

16. trig

Two Airplanes leave an airport at the same time on different runways. One flies on a bearing of N66degreesW at 325 miles per hour. The other airplane flies on a bearing öf S26degreesW at 300 miles per hour. How far apart will the airplanes be after 2

17. Math

P and Q are two towns.The bearing of Q from P is 070 degrees.What is the bearing of P from Q?

18. trigonometry

A ship is sighted directly east of a lighthouse. Another ship, which is 20m away from the first ship, is observed at a bearing of N25degreesE from the lighthouse. If the first ship is 4.1 km away from the lighthouse, what is the distance of the second ship

19. physics-forces

1. Salim has a paper route. He puts his papers on a toboggan to pull them through the snow. The combined mass of the papers and the toboggan is 24kg. The coefficient of static friction between the toboggagn and the snow is 0.18. The coeefficient of kinetic

20. neuroscience

In a laboratory, scientists often study neurons in isolation, outside of a living creature, in a dish. In this setting, one can have a good deal of control over the local ionic environment in which the cell exists, because we can control the makeup of the

21. Science

How are are the viruses, bacteria, fungi, and protists similar? are the all living things or only visisble to through a microscope or infectious diseases??

22. chemistry

Consider the following reaction: CH3X + Y  CH3Y + X At 25oC, the following two experiments were run, yielding the following data: Experiment 1 : [Y]0 = 3.0 M [CH3X] Time(hr) 7.08 x 10-3M 1.0 4.52 x 10-3M 1.5 2.23 x 10-3M 2.3 4.76 x 10-4M 4.0 8.44 x

23. GUESS MY RULE WITH LETTERS

I CAN`T FIND OUT WHAT THE RULE IS I KNOW THAT THE LETTERS THAT ARE IN THE RULE ALL HAVE STRAIGHT LINES N THE ONES THAT DO NOT FIT ALL HAVE CURVES I JUST NEE TO KNOW WHAT THE RULE IS PLEASE SOMEONE HELP ME

24. health

help, check my answers pls!!! asap!! 1. The ability to perform a movement within a short period of time is known as (1 point) agility power reaction time speed 2. In order to do a backflip in the middle of his hip-hop dance routine, Terrance has to

25. math

A store pays a 6% commission on the first \$500 in sales and 8% on sales over \$500. Find the commission on an \$800 sale. I just need the commission on the \$800 sale, cause i finish the other questions in this problem. Please explain how to do it.

26. U.S. History

how did women gain political experience through participation in reform movements?

Is Archaebacteria autotrophic or heterotrophic? Also, is it unicellular or multicellular? I believe it is both autotrophic and heterotrophic and it is multicellular, but I am not sure. Please help!

28. physics

A power plant burns coal and generates an average of 600.0 Megawatts (MW) of electrical power while discharging 900.00 MW as waste heat. Find the total electrical energy generated by the plant in a 30-day period. Coals vary a lot in their energy content.

29. geometry

RST with vertices R (-2, -2) , S (-3, 1) , and T (1, 1) is translated by (x, y) → (x - 1, y + 3) . Then the image, RST , is translated by (x, y) → (x + 4, y - 1) , resulting in R "S"T ". a. Find the coordinates for the vertices of R "S"T ".

30. statistics

True or False For any normal distribution, the proportion corresponding to scores greater than z = +1.00 is exactly equal to the proportion corresponding to scores less than z = 1.00.

31. Need help Statistic

please check answer Unit 4 Test Multiple Choice 1. Which choices listed below indicate that a linear model is not the best fit for a dataset? Choose all that apply. (3 points) • Scatterplot shows a strong linear pattern. • Scatterplot shows a curve

32. math

David currently has a square garden. He wants to redesign his garden and make it into a rectangle with a length that is 4 feet shorter than twice its width. He decides the perimeter should be 60 feet. Determine the dimensions, in feet, of his new garden.

33. Algebra

Solve the system of linear equations using the substitution method. 3x + 3y = 0 -6x + 9y = -10

34. physics

In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m . The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m . a) What is her gravitational potential

35. Science 1 question....

What are the social benefits that traveling into space has for modern society?

36. math

I came across with this last problem that I don't get on this sheet. Dan's uncle ask him to come work for him at his men's clothing store. He will pay him 5% on his first \$1000 in sales and 8% on sales above \$100. How much will Dan earn if he sells \$2500

37. Physics 212

Two copper wires have equal lengths, but the diameter of one is three times that of the other. a) The resistance of the thinner wire is _____ times that of the thicker wire: (Prove your work) 1) 3 2) 1/3 3) 9 4) 1/4

38. Health (Ms. Sue)

Discuss at least four things you can do to contribute to HIV and AIDS education and prevention.

39. phi

A recent study of 100 employees from six departments of a major corporation found 65% to be sleep deprived. The researchers concluded that the majority of corporate employees are sleep deprived. The researcher’s conclusion is suspect because it

40. trigonometry

From a point 150 ft from the base of a building the top and the base of a flagpole on a roof edge have angles of elevation of 27degrees49' and 21degrees42' respectively. Find the height of the pole.

41. math

kristyn is 4 years younger than mario. 3 years from now, she will be two thirds as old as mario. find their present age.

42. math

1.How is the maximum or minimum point of the original quadratic function related to the maximum or minimum point of its reciprocal function? 2.How can you use the leading coefficient of the original quadratic function to tell you whether its reciprocal

43. Health (Ms. Sue)

Is my answer correct? List the steps you should follow to help an individual who appears to have been poisoned. A: To help an individual who appears to have been poisoned, you must follow the steps below: 1. Seek medical assistance immediately. 2. Contact

44. Science

Translate into a sentence: 2NaHCO3 --> Na2CO3+H2O+CO2

45. Physics

Two balls of different masses are set at a height of 3 m above the ground on a frictionless table. The ball on the left is of mass 2M and the ball on the right has a mass of 3M. They both are released simultaneously and slide onto the part of the table 2 m

46. lit 1 question PLS HELP ASAP

what does meager mean in this sentence??!! After this first inspection of the kingdom, we'd scramble down the bank and flop in the meager shadow of the willows next to the wall enclosing the house where the white gate was. I know meager means lacking

47. statistics

True or False If one score is randomly selected from a normal distribution with  = 100 and  = 20, the probability of obtaining a score between X = 80 and X = 120 is 0.3413.

48. English HELP!!

Can you fix the fragments on these two sentences pls.? 1)After all the people left the party. 2)When Halloween arrives,all boys and girls.

49. Health (Ms. Sue)

Differentiate between first, second, and third-degree burns. A: First-degree burns are burns that affect only the outer layer of the skin and look pink, including minor sunburns and burns caused by a very short exposure to intense heat such as an

50. physics

What is the ratio of the spin angular momentum of the earth and its orbital angular momentum about the sun. The mean radius of the earth is R=6400km. The radius of the earth's orbit is r=1.5*10^8km. You may assume the mass of the earth is uniformly

51. Physics

A bullet (m = 0.0250 kg) is fired with a speed of 92.00 m/s and hits a block (M = 2.50 kg) supported by two light strings as shown, stopping quickly. Find the height to which the block rises. Find the angle (in degrees) through which the block rises, if

52. Chemistry

The answeres to the previous post was not what I am looking for...so please try to help me..... How can I make various concentrations of CuSO4(this is a blue solution)? I know that to make 0.1M you would fill the copper solution up to 10mL in the graduated

53. Physics

A car (m = 670.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 35.0 m. Find the average power the engine must deliver to reach a speed of 23.9 m/s at the top of the hill in 22.7 s(NEGLECT frictional losses:

54. physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!

A Venturi flow meter is used to measure the the flow velocity of a water main. The water main has a diameter of 40.0 cm, and the constriction has a diameter of 10.0 cm. The two vertical pipes are open at the top, and the difference in water level between

55. Health (Ms. Sue)

Describe what you would do if you saw a co-worker committing serious safety violations at work. A: If I saw a co-worker committing serious safety violations at work, there are several actions I would take. First, I would advise this co-worker to not commit

57. Chemistry

The answeres to the previous post was not what I am looking for...so please try to help me..... How can I make various concentrations of CuSO4(this is a blue solution)? I know that to make 0.1M you would fill the copper solution up to 10mL in the graduated

58. Health (Ms. Sue)

List and describe three unsafe driver behaviors. A: Three unsafe driver behaviors are speeding, aggressiveness, and impaired driving. These behaviors are hazardous for their own, individual reasons. Exceeding the speed limit, or speeding, for example, is

59. 7th grade acc math prevents

How do I show on a hundred grid what 18% of 520 is? I know what the answer is but don't know how the grid can help me find the answer and that is what the teacher wants us to show. Thanks in advance!

60. math

how much is 965feet of screen wire @ \$.125 a foot?

61. Homework - Math

This is dividing polynomial by monomials How do yu solve these? 1. 5mn divided by 5m^3n - 10m^2n^2 2. -10a^6 divided by -30a^9 + 20a^7 3. -2a divided by 8a^3 - 4a^2b + 6ab^2

62. math

Two of the sides of a right angled triangle are 5m nd 12m.find the length of the third side(there are two possible answers)

63. Psychology

How has the definition of social facilitation evolved

64. Chemistry

How do you express relative amounts pf each element in a compound?

65. math

Find 10% of \$500 and 10% of \$300. Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this with 10% of 30, since 8% is close to 10%.Does your answer make sense. Please show work so i can understand

66. MATH

7/10 of Delia's money is equal to 1/5 of Sarah's money. They have \$225 altogether How much does Delia have?

67. U.S. History

"opportunities for women" main ideas,historical details "gaining political experience" "rise of the woman's suffrage movement" identify women's issues that have been resolved and issues and problems women face today.

68. English

Can someone check these sentences describing Mr Gradgrind? Thank you very much in advance. Mr Gradgrinds's appearance mirrors his beliefs. His eyes contain no light as the square forehead containing facts prevents him from seeing any. His mouth is not more

69. physics

A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Why are marks left on the wooden floor by the woman's shoe heels but not her shoe soles?

70. Algebra 2

I am trying to figure out if these problems are Direct Variation, Inverse Variation, or Neither. Could someone please check my answers? m=-5p Direct c=e/-4 Neither c=3v Direct r= 9/t Inverse n=(1/2)f Direct u=I/18 Neither d=4t Direct z= -0.2/t Inverse

71. Health (Ms. Sue)--Have I answered correctly?

Have I answered this question correctly? Describe the proper hand signals to use when riding a bike. A: Although bicycles are becoming more advanced and include highly sophisticated gadgets and gears, they still aren’t equipped with turning signals and

72. lang arts

List common nouns Anne Morrow Lindbergh soon shared his love of aviation. Answer: love & aviation question: Is shared a common noun also?

73. Health (Ms. Sue)

After school, your friend asks you to give him a lift home on your bike. What would you tell your friend? Why? A: I would tell him that I couldn’t because there would be no room for him to sit upon the bicycle. However, I would also tell him that I

74. math

Check ..... 1. Find 10% of \$500 and 10% of \$300.Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this with 10% of 30, since 8% is close to 10%. Does you answer make sense ?

75. math

When it says "eight less than twice a number is 12 more than four times the number" will its equation Be, 2n-8=4n+12? And if that is true how could I solve it?

76. medical coding

1.LOCATION: Inpatient, Hospital PATIENT: Margaret Hill ATTENDING PHYSICIAN: Ronald Green, MD SURGEON: Gary Sanchez, MD PREOPERATIVE DIAGNOSIS: Chronic cholecystitis and cholelithiasis POSTOPERATIVE DIAGNOSIS: Chronic cholecystitis and cholelithiasis

77. English

Which is the most important step you need to do as a study reader? A. Take notes while you read. B. Survey the chapters before you begin detailed reading. C. Answer questions as you read. D. All of the above. im Stumped :(

78. U.S. History

suppose you are a women who has gained political experience in the abolitionist movement. write a letter to the editor explaining your opposition to the exclusion of women from the proposed 15th amendment

79. Science

Does the burning of biomass give out greenhouse gases?

80. physics

weight 240N/ area 2cm2=

81. math. can someone do this for me please....

* Consider the functions f(x)=1/x +4 and g(x)=2/x. Graph f and g on the same grid. a)Determine the points of intersection of the two functions. b)Show where f(x)

82. History

What are some positives and negatives results from the reconstruction era?

83. english

to needle someone is to a. press him or her into taking a particular action b.make that person try to locate a very small object. c.speak sharply to him or her

84. math

When it says "three times the quantity of a number increased by 2 is 108" what would the equation be?

85. Chemistry

How can I make various concentrations of CuSO4? I know that to make 0.1M you would fill the copper solution up to 10mL in the graduated cylinder and then add water to the rest..but how can you prepare a 0.01M? 0.001? 0.0001?..........using water and

86. Physics-forces

A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Sometimes all this weight acts on the heels of her shoes. What is the pressure under her heels? 240n/2cm^2

87. CHEMISTRY

The answeres to the previous post was not what I am looking for...so please try to help me..... How can I make various concentrations of CuSO4(this is a blue solution)? I know that to make 0.1M you would fill the copper solution up to 10mL in the graduated

1.Explain how to find the equation of the vertical asymptotes of a reciprocal function. 2.The reciprocal of a linear function and a quadratic function have the same horizontal asymptote. What is its equation? 3.Explain how to use end behaviour to find the

1.Give a linear function with its zero at x=a, what is the equation of the vertical asymptote of its reciprocal function? 2.Give a quadratic function with its zeros at x=a and x=b, what are the equations of the vertical asymptotes of its reciprocal

90. math

If it says: "five less than three times a number is 20 More than half a number" would the equation be 3n-5=n/2+20? If so what would the answer be? Please help this is a bit confusing!

91. physics

A 3kg basketball is dropped from the top of a 120m building. if all of the energy is converted into KE, what is the velocity of the ball just before it hits the ground

92. Science

Can energy from wind turbines be used for heating and cooling in a house? If so, please give a website so that I can do some research.

93. science

how can nuclear energy be used for heating and cooling a house?

94. Health (Ms. Sue)

What safety concerns are particularly relevant in homes with small children? A: Injuries from fires or falls, suffocation, and electrocution are particularly relevant in houses with small children.

95. Algebra

Andy has 145 coins in his coin bank. THe number of 5-denomination coins is 10 more than twice the number of 10-denomination coins. The difference between the number of 1-denomination coins and 5-denomination coins is 5 more than the number of

96. Physics-forces

240n/2cm^2 240n/40cm^2 A woman wearing high-heeled shoes stands on a wooden floor. Her total weight is 480N and acts equally on each foot. Why are marks left on the wooden floor by the woman's shoe heels but not her shoe soles? really need help with these

97. math

*Consider the function g(x)=x/x-7. a)Summarize the increasing and decreasing intervals. b)Compare the slopes of the tangents at the points where i) x=7.5 and x=20 ii) x=6.5 and x= -20

1.You want to use the interval method to solve a rational inequality. Explain how to find the intervals. 2.Explain how the interval method works. 3.Explain in your own words what a reciprocal function is.

99. health

Research two hospital explain how the hospital rate according to JCAHO standards?

100. physics

with a velocity of 2.3 m/s at an angle of 110 degrees to the board. at what horizontal distance from the end of the board will the diver enter the water?

101. Math

The area of a cylinder is 956m3. If the circular top is halved, what is the new volume?

102. physics

240n/2cm^2 240n/40 cm^2