1. phyics

Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average velocity of the runner. Express your answer in meters per second to the nearest integer.

2. science

Suppose you are hiking along a trail. Make a comparison between your displacement and your distance traveled. Check all that apply. -Your displacement must be less than your distance traveled. -Your displacement must be greater than your distance traveled.

3. Maths

A shopkeeper purchases 50 dozen eggs at Rs. 16 per dozen. Of these 40 eggs were found to be broken. At what price should he sell the remaining eggs in order to make a profit of 5%?

4. Calculus 1

A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find the velocity and speed when t = 5. (Round your answers to two decimal places.) f(t) = t^−1 − t *We havent learned derivative

5. Chemistry Lab

Suppose that you used 0.75g of iron. What is the minimum volume of 1.5 M_ CuSO4 solution required Using eqn. (3-1)? and eqn. (3-2)? (3-1) Fe(s) + Cu^2+ (aq) ---- Fe^2 (aq)+ Cu (s) (3-2) 2Fe(s)+ 3Cu^2+(aq) --- 2Fe^3+ (aq) +3Cu (s)

6. phyics

Four cars undergo acceleration as described by the data in the following table. Car Initial Velocity (m/s) Final Velocity (m/s) Time period (s) A 2.0 11.0 3.0 B -5.0 3.0 2.0 C 1.0 -5.0 2.0 D 0.0 25.0 10.0 Rank the accelerations from most positive to most

7. physic

Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average speed of the runner. please explain process

8. maths

a small ant climbs 3cm in 1 minute but slips down 2cm. how much time will it take to climb 4cm

9. music and movement

What is the correct developmental sequence of nonlocomotor skills starting from first learned?

10. Magoni secondary school

accounting. economic. business studies n maths literacy if am doing those subject wch career can l get plz help me

11. Chemistry

Suppose that you used 0.75g of iron. What is the minimum volume of 1.5 M_ CuSO4 solution required Using eqn. (3-1)? and eqn. (3-2)?

12. Physics

A rescue helicopter drops a package of emergency ration to a stranded party on the ground. If the helicopter is travelling horizontally at 40m/s at a height of 100m above the ground, what are the horizontal and vertical component of the velocity of the

13. algebra

The sides of a square are three to the power of two sevenths inches long. What is the area of the square? nine to the power of four sevenths square inches three to the power of four sevenths square inches three to the power of the fraction four over forty

14. Government

What is meant by “standards of justice have not always been met”? Provide examples of some efforts that have been made to reach the goals of justice at all?

15. phyics

Consulting the graph shown in (Figure 1) , determine the object's average velocity over the time interval from 2 to 4 seconds. Express your answer in meters per second to the nearest integer. Position versus time graph for an object traveling with a

16. music and movement

a child's strength and balance which allows the child to walk early is considered what type of constraint

17. math

Austin is creating a new trail mix by  combining two of his best­selling blends.  A   pineapple­coconut­macadamia (pcm) mix  that sells for \$18/kg and a banana­papayapeanut (bpp) mix that sells for \$10/kg. Write

18. Trigonometry

a pizza has a diameter of 18 inches and it's divided into 8 equal parts, and you take one slice of it. what is tha central angle of your share in mills measurements? with a solution

19. Duck Ponds High School

1.Identity four environmental issues that cause ill-health to Madadeni community in Newcastle. 2.choose one issue from list as your topic and provide two brief descriptions of the issue. 3.Illustrate three ways how this issue can impact negatively to the

20. alGEBRA 1

the ratio of lemon juice to water in lemonade is 3:7 ,. if 9 cups of water aer used to make a pitcher of lemonade , how many cups of lemon juice are needed

21. PHYSICS

a 2500-kg car is travelling at 20 m/s around a road curve of radius 200 m. Find the central force acting on the car?

22. algrebra

In a recent pancake eating contest, Phil ate three less than twice as many pancakes as Sara. Together they combined to eat 15 pancakes. How many pancakes did they each eat?

23. chemistry

If a rectangular solid has a mass of 59.345 g and measures 10.05 cm by 5.20 cm by 1.25 cm, what is the density of the solid?

24. osizweni

Math,busi age is three time the age if vusi.in six years time their combine age is 18 .what are their ages now

25. PHYSICS

A wheel of radius 1.5 m rotates at a uniform speed. If a point on the rim of the wheel has a central acceleration of 1.5 m/s ^2. what is the point's tangential speed?

26. Physics

A person exerts a force of 90 N on a rope that pulls a sled across a very smooth surface. The rope is oriented 37∘ above the horizontal. The sled has a total mass of 40 kg . The sled starts at rest and moves for 10 m.

27. Math

The Snack Shack is making a batch of trail mix. They use 9 1/3 pounds of granola, 9 1/3 pounds of mixed nuts, and 9 1/3 pounds of yogurt raisins to make a trail mix. They divide the mixture into 14 packages. How much is in each package? Explain.

28. college algebra

A car salesperson's annual income depends on the amount of his sales. His annual income is a salary of \$11500 plus 12% of his annual sales. Write a linear equation for his annual income for sales of x dollars. ( I = mx + b ). 11500=I i Don't know what is

29. math

The number of my hundreds plus the number of y thousands is 3.the number of my tens is 7 times the number of my hundreds.the number of my ones in 3 times the number of my thousands.all my digits are different.What number am i?

30. Children Development

Describe and give examples of changes in your child’s exploratory or problem solving Behavior from 8 through 18 months and categorize them according to Piagetian and Information processing theories. What does this question mean?

31. PHYSICS

A car with a uniform speed of 60km/h enters a circular flat curve whose radius is .50 km. If the friction between the road and the car's tires can supply a central accekeration of 1.25 m/s^2, dies the car negotiate the curve safely? Prove your answer.

32. physics

A stone is dropped from the top of a tower 400 m high and at the same time another stone is projected upward vertically from the ground with a velocity of 100 ms −1 . Find where and when the two stones will meet.

33. Algebra: Avc

A cash register has no one dollar bill in it all of the bills are five dollar bills \$10 bills or \$20 bills there are a total 37 bills in the cash register and the total value of this bills is \$310 if the number of \$10 bills in the register is twice the

34. Computers

Draw the flowchart or pseudocode for an application that allows a user to enter the price of an item and computes 8 percent sales tax on the item.

35. umkc

A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 4.20 g bullets at 970 m/s . The mass of the hunter (including his gun) is 69.5 kg , and the hunter holds tight to the gun after firing it.

36. Algebra

The speed of the current is 4kph. A boat travels 6km upstream in the same time it takes to travel 10km downstream. What is the spees of the boat in still water?

37. PHYSICS

a metal ball tied to the end of a string 1.8 m long is whirled in a horizontal circle at 4 m/s. what is the mass of the ball if the tension on the string is 30 N ?

38. Algbra 2

Divide using the division algorithm. Write your answer in the form Q + RD where the degree of R is less than the degree of D. x^3+3x+4/x+1 How am I supposed to do this?

A company's retained earnings increased \$375,000 last year and its assets increased \$973,000. The company declared a \$79,000 cash dividend during the year. What was last year's net income?

40. Criminal Justice/White Collar Crime

The financial cost of street crime is __________ of the cost of white-collar crime. A. less than 1/10 B. about 1/4 C. about 1/3 D. over 1/2 Textbook says 6% so I am completely lost on this question.

41. probability

An installation technician for a specialized communication system is dispatched to a city only when three or more orders have been placed. Suppose that orders follow a Poisson distribution with a mean of 0.25 per week for a city with a population of

42. Math

5 sin theta +12 cos theta = 13. Prove 5 cos theta - 12 sin theta =0.

43. algebra

Lucas wins \$50,000(after taxes) in the lottery and decides to invest half of it in a 5-year CD that pays 5.35 percent compounded quarterly (4 times/year). He invests the other half in a money market fund that unfortunately turns out to average only 2.6

Write an expression for the distance a car travels in t hours at a speed of s km/h

45. Algebra 2

Jason loves to download music. Downloads R Us sells songs only in packages of three, and it charges \$2.00 for each package of three songs. Jason's favorite group just released their greatest hits CD, which has 17 songs on it. Jason wants to buy all 17

46. ELA

How does jack London build suspense.

47. Physics

Explain how the electric potential energy of a particle can increase when moving from a region of high electric potential to a region of low electric potential energy.

48. Algebra

Joanne paid \$27,840 as a down payment for her house. If the down payment was 12 percent of the actual cost of the house, what was the actual cost?

49. thesis

could this be a thesis for this topic When Bullying Turns Deadly: Can It Be Stopped Thesis" Bullying causes many problems in teenager's lives such as stress, depression and suicide

50. Math

An ordinary plane leaves an airport and flies due west at 180kph. Two hours later a jet leaves the same airport and flies due west at 900kph. How far from the airport will the jet overtake the ordinary plane?

51. Science

On a 120 km trip a motorist travels 60 km at 60 km/h. How fast must the motorist go for the next 60km in order to average 120km/h for the whole trip? i have attempted this question, yet the answers say it is impossible.

52. Elementary Mathematics

The probabilities that May, Lily and Mary will pass a test are 2/5, 7/10 and 9/10 respectively. Find the probability that (i) At least one of them will pass the test, (ii) 2 of the girls will pass the test

53. PHYSICS

An object weighs 480 N on earth. what would its weight be on a planet whose mass is twice the mass and half the ratio of the earth?

54. Algebra

The speed of the current is 4kph. A boat travels 6km upstream in the same time it takes to travel 10km downstream. What is the spees of the boat in still water?

55. real writing

1.Choosing a used car to buy can be _more difficult___ than it might seem. A. more difficult B. most difficult 2. Getting the _most best___ car possible for your money involves a lot of research. A. best B. most best 3.The _cheaper___ car available is

56. Bio

A field mouse eats 10000 g of leaves each year, among other things. Of each gram of leaves has absorbed 150 kj of energy from the sun, about how much energy is available for the mouse?

57. trigonometry

(a) If è is in standard position, then the reference angle è is the acute angle formed by the terminal side of è and the ---Select--- x-axis y-axis . So the reference angle for è = 120° is è = ?°, and that for è = 210°is è = ? degrees. (b) If è

58. ENGLISH

Formal essay topic sentence guidelines: 1.) Topic sen. must be debatable, or, at the very least, worthy of discussion. They should not present straight facts with which most people would readily agree, nor should they be general statements about life. 2.)

59. riddle

20 pigeons sat on the branches of a tree. A man hit 1 pigeon with a cannon. How many were left on the tree?

60. Math

Four members of a club decide to buy shares in a company. They will divide the cost equally. Two new members join the club and agree to contribute to the shares. Their contribution results in a savings of \$200 for each of the original four members. How

61. English

She was sitting in the train. ================== Is she moving to sit down in the train? Or she sat before and now she remains seated in the train?

62. science

Bacteria in swelling on the roots of peanut plants convert blank gas from the air into compounds that the plants need to grow.

63. math ( having difficulty)

Superior has provided the following information for its recent year of operation: The common stock account balance at the beginning of the year was \$18,000 and the year-end balance was \$19,000. The additional paid-in capital account balance increased

64. Math

An individual federal tax return form asks, among other things, for the following information: income (in dollars and cents), number of dependents, whether filing singly or jointly with a spouse, whether or not deductions are itemized, amount paid in local

66. Physics

Find the change of the mechanical energy of a 1000-kg car traveled down an incline with 1:10 grade a total distance of 100 m during which its speed increased from 10 m/s to 20 m/s? Is my answer correct, if not what did I do wrong? ME=KE+PE+Q

67. Algebra

The total of dharma's, Eugene, and Ferns final exam score is 272 Dharma score is added to Eugene score the sum is 28 points less than twice ferns score if Eugene score is eight point higher than Dharma score what is each student's final an exam score?

68. math

How many ways are there to roll out a 3 question True or False?

69. Math

How many ways can you set up a committee of 4 people from 10 people?

70. Algebra

Find the domain of the function. Write in interval notation. sqrt(x^2 − 64). For the answer, I got (-infinity, -8)u(8, infinity), but that's wrong, and I'm not sure what else to try?

71. Physics

A car is at mile marker 132 on the highway heading North. Of the car is traveling with a velocity of 24 mi/hr, what mile marker will the car be at after 150 minutes

72. Algebra

Find the domain of the function. (Write your answer using interval notation.) sqrt(x)/ (4x^2 + 3x − 1) If you set the bottom equal to zero, I got that x can't be -1 or 1/4. But I'm not sure if that's right, or how to write the answer in interval

73. PHYSICS

the gravitational forve between two masses is 500 N. What is the gravitational force if the masses are doubled and distance between them is likewise doubled?

74. math

Jenny gets a salary increment of 20%. She gives 1 5 of her new salary to her mother and spends another 40%. If she has RM600 left,what is her original salary?

75. math egd;science;algebra

Identify environment issues cause illhealth

76. Criminal Justice/White Collar Crime

___________is an especially alarming characteristic of white-collar crime that, ironically, is also an explanation of low public interest in white-collar crime. A. The small number of people actually victimized by white-collar crime B. Excessive government

77. alGEBRA 1

write two verbal expressions for the following: 4+m write a verbal expression for the following;7-y

78. physics relativistic energy

I'm not too good with these special relativity problems :/ The question is: A 20 kiloton bomb releases 8 x 10^13 joules. How much mass must be converted into other forms of energy? You are already given Energy, would I still use the E=mc^2 formula??

79. math

Gabriella has between 2 and 3 hours to spend on Math, Sociology, and English homework. She plans to spend equal amounts of time studying Sociology and English, and to spend 2 times as much time studying Math as in studying Sociology.

80. ENGLISH!! HELP!!!

THE PROMPTS:TAKE A POSITION THAT DEFENDS OR CHALLENGES THE CLAIM THAT THE RECENT PROFUSION OF SURVEILLANCE TECHNOLOGIES CONSTITUTES A THREAT TO CIVIL LIBERTY. ___________________________________ The example Introduction is : George Orwell wrote "1984", a

81. Math Pre Algebra

evaluate 5(14-2^3)+ 8/2 =

82. Pre-calculus

write the complex number -5 in polar form. I don't get how to do this because arctan of b/a would be 5/0 which is a fraction with no solution. Also, is a zero? Sorry if I'm being confusing! Thank you!

83. math

lim x-->-9 x^2+10x+9 / x-9

31+0+(-2)

85. math

1 mulliken = 10 inches 11 9/10 inches = how many mullikens? 5 13/16 inches = how many mullikens?

86. Biology

My hair color is blonde and so is my parents.What is my genotype?

87. Biology

My mom was average height and my dad was short and mine short. I am think my genotype is heterozgous. My mom weight is average and my dad was overweight and my was average. I am think my genotype is homozygous.

88. Math

The volume of water in a container is x(2x²+x+5)cm³ when the depth is Xcm water is added at the rate of 60cm³5¯¹ when the depth is 5cm,at what rate is the level rising.

89. statistic

An individual federal tax return form asks, among other things, for the following information: income (in dollars and cents), number of dependents, whether filing singly or jointly with a spouse, whether or not deductions are itemized, amount paid in local

91. Algebra 2

I have to add this rational expression but I keep on ending up with 2 different answers each time I try to solve the expression. 2/x + 1/2x My answer is 4x+1/2x; but I also got 5/2x. Which one is correct and why?

92. accounting

bought goods on credit from Tom with a list price of 2000, less 10% trade discount

93. PHYSICS

two equal masses of 12kg each are 2m apart. WHat is the gravitational force between them?

94. maths

bhanu went in the motor boat for riding. He paid money for 5 hours 30 minutes. Half of the time finished he came back . how many hours and minutes he spend for the ride

95. Algebra 2

Did I solve this complex rational expression correctly? (2/3)-(x)/(2/3)+(x) 2/3-x = 2/3-x(3)/1(3)= (-x)+(2/3) (2/3)+ (x)= 2/3 + x(3)/1(3)= (x)+(2/3) (-x)+(2/3)/(x)+(2/3) = -(3x-2)/(3x-2)

96. maths

A light house is 30m taller than a building which is 28m tall, how tall is the light house

97. Physics

A 4000 kg trailer is towed up a hill with a 5% grade. If the towing truck starts from rest at the bottom of the hill and reaches a speed of 12 m/s at the top of the hill, how much is the towing force. The road from the bottom to the top of the hill is

98. Calculus

Let f(x) be the function f(x)={x2−c for x

99. math

2/5*-3/7-1/6*3/2+1/14*2/5

100. mathamatics

L.C.M OF 21168

101. discrete math

4m+5n^2=20 (proof by cares)

102. life orietation

list four environmental issues that causes ill health

103. math

2/5c+4-1/5 equals -4

104. algebra

Given f(x)=3x^2-4x-1 and g(x)=8-2x, find each of the following: f(2) g(-2) f(-1) g(1/4) f(-4)

105. algebra

Write an equation of a vertical line through the point (-3,-5).

106. Math

If a - 1/a = 2 then show that ( a + 1/a )^2 = 8

107. algrebra

solve the equation -4(3-x)=3(4x-6)

108. IPV

Solve the equation by Gauss elimination method 6x+3y-z=7 5x-9y+4z=4 8x+5y-z=11

109. science

Do I need the comma after "months" here? Over the past 6 months, OvaScience has been continuously hammered down by short sellers.

110. statistics

I need to figure out the variables one independent and the other dependent from the data set. I forgot what a data set is and what the variables are I have the paper I m supposed to be looking on for it but have no idea what i m looking for.

111. Highland

A cash register has no one dollar bills and all of the bills are five dollar bills \$10 bills or \$20 bills they are a total of 37 in the cash register and the total value of his bills is &310 if the number of the \$10 bill in the register is twice the number

112. english

the performance was a huge disappointment

113. math

If your 4ft from the mirror;the mirror is 15ft.from the wall and your eyes are 6ft from the floor,what is the height of the wall?