# Questions Asked onApril 4, 2010

1. ## math

A contractor is considering a sale that promises a profit of \$ 26,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of \$ 4000 with a probability of .3. What is the expected profit. Can someone help me with this.

2. ## Physics Problem 6.20

The center of a 1.40 km diameter spherical pocket of oil is 1.50 km beneath the Earth's surface. Estimate by what percentage g directly above the pocket of oil would differ from the expected value of g for a uniform Earth? Assume the density of oil is

3. ## Organic chemistry

What are two reasons why the crude product in most reactions is not pure?

4. ## O Chemistry

In the reaction p-aminophenol + acetic anhydride --> acetaminophen , 4.5 ml of water is added into the flask with the p-aminophenol and acetic anhydride at the beginning of the experiment. What is the purpose of this water?

5. ## Physics

The kinetic energy K of an object of mass m moving at a speed v is defined as K=(1/2)mv^2. It seems reasonable to say that the speed of an object--and, therefore, its kinetic energy--can be changed by performing work on the object. In this problem, we will

6. ## chem

what is the major product of this reaction CH2=CH-CH2CH3+H2O H2SO4

7. ## Economics

When Burton Cummings graduated with honors from the Canadian Trucking Academy, his father gave him a \$350,000 tractor-trailer rig. Recently, Burton was boasting to some fellow truckers that his revenues were typically \$25,000 per month, while his operating

8. ## math

A teacher allows the students to each "throw out" their lowest test score in order to increase their overall grade. The original mean score of 5 tests is 72.8. After the removal of the lowest test, the mean score becomes 78.5. What is the score of the

9. ## chemistry

A 1.362 g sample of an iron ore that contained Fe_3O_4 was dissolved in acid and all the iron was reduced to Fe^2+. the solution was then acidified with H_2SO_4 and titrated with 39.42 mL of 0.0281 M KMnO_4 , which oxidized the iron to Fe^3+. Net ionic

10. ## physics

A truck engine transmits 28.0 { kW} (37.5 hp) to the driving wheels when the truck is traveling at a constant velocity of magnitude 60.0km/h( 37.3mi/h) on a level road. 1.Assume that 65% of the resisting force is due to rolling friction and the remainder

11. ## algebra

Find the minimum and maximum values of the objective function subject to the given constraints? Objective Function: C=4x+5y Constraints: x>=0, y>=0, x+y

12. ## Computer Science

w w w (dot)cs(dot)umass(dot)edu(slash)~verts(slash)coins105(slash)quizzes(slash)images(slash)hw10(dot)gif Using the constants in cells A2:A9, create formulae for cells A12:A15 (surrounded by a dark line) to compute the corresponding "derived" physical

13. ## chem

what would the chemical equation look like for each IUPAC name 4-phenyl-2-pentyne b. 2-phenyl-3-pentyne c. 3-phenyl-4-pentyne d. 2-phenyl-4-pentyne

14. ## scientist

How did leeuwenhoek's work influence us today?

15. ## english

I have to write an eight-sentence paragraph that fully develops this topic. A high school diploma is important to my future...... but i keep going in circles and i can't get my ideas together .I keep wondering off the topic. Can anyone help me write this

16. ## Electrical Engineering

At what frequency is a 0.0001 uF capacitor operating if its reactance is 45 k ohm?

17. ## chemistry

What is the solubility of CaF2 in a buffer solution containing .30 M HCHO2 and .20 M NaCHO2?

18. ## psychology

select one theory of personality and use this theory to tell Jennifer what factors about this stage might be impacting her perspetive of this situation. I have no clue what my instructor is looking for. Can you help me?

19. ## Gr, 12 English

I want to find a helpful character guide for a Canadian play called "Leaving Home". It is so tough to look for.

20. ## Physics Problem 6.12

Estimate the acceleration due to gravity at the surface of Europa (one of the moons of Jupiter) given that its mass is and making the assumption that its density is the same as Earth's

22. ## Physics

Two infinitely long slits, S1 and S2, each of width d=0.1 cm are used to prepare a box-shaped electron beam with energy E=400 eV. At what distance x from the slit S2 will the thickness of this electron beam double due to Coulomb's repulsion? The linear

What resistance would produce a current of 120 amps from a 6-volt battery?

24. ## College Chemistry

HELP ME PLEASE! 1. Calculate the weight of 16.2L of pure SO2 gas at STP. (answer in grams) a.16.2 b.31.8 c.39.5 d.46.3 e.64.1 2.A volume of 725mL of a gas is collected at 105Celsius and 745torr. The gas weighs 1.93 grams. What is the Gas? a.Fe2 b.Ar c.Kr

25. ## Physic

A mass attached to a spring oscillates with a period of 3.15 s. If the mass starts from rest at x = 0.0530 m and time t = 0, where is it at time t = 6.69 s? I found online that you use the equation x = Acos(2pi*t/T) where A is the amplitude, t is 6.69s and

What is the potential difference if a resistance of 25 ohms produce a current of 250 amperes?

27. ## English-- Analogies

1. perfunctory : Punctilious :: A. kindly : gently B. avoid : detect C. practical : Feasible D. Perdition : salvation 2. Perspicacity : Mind :: A. reason : excuse B. attorney : trial C. sharpness : blade D. rainstorm : spring

28. ## physics

In a hydrogen atom, if the radius of the orbit of the electron is doubled, then its energy will ... a)Decrease by a factor of 2 b)Remain the same c)Increase by a factor of 2 d)Actually, it is not possible for the radius of the orbit to double e)Increase or

29. ## math

still having a hard time understand these? please help? Logx10 + logx8-logx5=4 Log3256-log327=x Log 2+ 3log 5-log 25=x

30. ## science

If the concentration of glucose in the blood flowing through the kidneys is within the normal range, then which of the following statements is correct? a. The nephron pumps glucose into the collecting duct. b. The Bowman's capsule secrets glucose back into

31. ## trig.

A 2000 pound car is parked on a street that make an angle of 12 degrees with the horizontal figure Find the force perpendicular to the street.

32. ## Intro Chemistry

Which molecule based on the following enthalpies is the most stable? Molecule A: -70 kJ/mol Molecule B: 100 kJ/mol Molecule C: 145 kJ/mol Is it Molecule A? Isn't the lower the enthalpy the more stable the molecule? Thank You

33. ## college physics

How to do this problem? Compute the number of turns of wire on a coil whose resistance measures 15.5 ohms, and which is wound around a 2-inch diameter form in a single layer of 28 gage enameled copper wire.

34. ## Physics

The allowed orbits for the electron around the nucleus of the hydrogen atom are explained by de Broglie as ... a. Quantized values for the total energy of the electron in the atom b. Quantized values for the angular momentum of the electron in the atom c.

35. ## math-grd 11

what do they mean by sine regression? i am currently working on the grd 11 isu and i am just wondering how i am supposed to incorpporate sine regreession into it? my isu is, you have a picture you have to find a curve in it and figure out the equation of

36. ## English

Bring me Ma Linang. Bring Ma Liang to me. Bring Ma Liang for me. (Are they the same? Can we use both 'to' and'for'?)

37. ## physics

A motorist drives along a straight road at a constant speed of 15.0 m/s. Just as she passes a parked motorcycle police officer, the officer starts to accelerate at 2.00 m/s2 to overtake her. Assuming the officer maintains this acceleration, (a) determine

38. ## algebra

the width of a retangle is fixed @30 cm. what lengths will make the perimeter greater than 78 cm?

39. ## grd 11

what is sin regression?

40. ## GRD 11-NEEED IT FAST, EMERGENCY

WHAT IS SIN REGRESSION ?

41. ## math

how to do ratio in simplest from example 5km to 5m

42. ## writing

When a reporter makes a mistake in a magazine article, you can run a correction, but when a health care worker makes a mistake, someone can die. Reflecting on this statement, answer the following questions: * Should we hold people in certain professions to

43. ## Chemistry

I misread the question i posted earlier. The equation is Pb(OH)2 (s) + NaOH (aq)---> ? I know that the complex ion formed is Pb(OH)4^2- , but would that be written in a balanced net-ionic equation?

44. ## Chemistry

This question is: How many orbitals are there in each of the following energy levels.. a) 1s b) 6p c) 10f d) 7d e) 5s Now.. do i use n^2 for the number of orbitals in each energy level? Ex. b) would be 36 OR can i state the number of orbitals in each

45. ## HCA 230

Do I need to do research online fot the paper on the soicallization of caregivers or if the information is in the reading?

46. ## Confidentiality: computors

Should corrections be date and time stamped?

47. ## Physics Problem 6.20

The center of a 1.10 diameter spherical pocket of oil is 1.10 beneath the Earth's surface. Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth? Assume the density of oil is

48. ## Physics Problem 6.9

Four 8.5 kg spheres are located at the corners of a square of side 0.56 m Calculate the magnitude and direction of the gravitational force on one sphere due to the other three?

49. ## physics

how do i solve this, i tried dividing the mass by the height, but its wrong A 407-kg pile driver is raised 15 m above ground. (a) How much work must be done to raise the pile driver?__kj (b) How much work does gravity do on the driver as it is raised?__kj

50. ## college

I am having difficulties doing an eguation for two different times/seconds on an object that is thrown in the air......please help!

51. ## Physics Problem 6.22

It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

52. ## basic math

If 3 pounds (lb) of apples cost 90¢, what will 10 lb cost?

53. ## statistics

A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to know whether the kind of students in this class differs from that of fourth graders in general at her school. On the test, a

is a shortage of tyrosine the cause of albinism? can u explain the answer.

55. ## algebra

Solve tne compound inequality 4x+2>= -22 or 7x+2>= -19 Thank you

56. ## basic math

Determine if the given rates are equivalent. 9in/57 miles = 6 in/38 miles

57. ## Math

Would you be more likely to get at least 70% tails if you flip a fair coin 10 times or if you flip a fair coin 1000 times? A) You would be more likely to get at least 70% tails if you flip a fair coin 10 times than if you flip a fair coin 1000 times. B)

58. ## math

Write the proportion that is equivalent to the given statement. If 16 pounds of fertilizer cover 1,520 square feet, then 21 pounds should cover 1,995 square feet

59. ## calculus

A) How do you prove that if 0(

60. ## Chem

what would the chemical equation look like for each IUPAC name 4-phenyl-2-pentyne b. 2-phenyl-3-pentyne c. 3-phenyl-4-pentyne d. 2-phenyl-4-pentyne

The Book of "The Great Gatsby" Describe the "valley of ashes." What does it look like, and what does it represent?

62. ## Confidentiality: computors

When should a patient be advised of the existence of computerized databases containing medical information about the patient?

63. ## math

Determine whether each pair of fractions is proportional.. 5/12 = 8/20 find each unit rate 657,200 libary books/5,200 students

64. ## accounting

BizKid Company’s adjusted trial balance on August 31, 2005, its fiscal year-end, follows:

65. ## Physics

Neutron stars, such as the one at the center of the Crab Nebula, have about the same mass as our sun but a much smaller diameter. If you weigh 665 on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun

66. ## math 10 general math

what is the yield for 8.5% compound continously?

67. ## Personal Finance Concepts

How to set up the problem. Calculate the after-tax yields on the foregoing investments, assuming the Brittens have a 28% marginal tax rate. And they are going to purchase a condominium for \$100,000 with an expected annual increase in market value = to 2%

What is the current produced by a potential difference of 240 volts through a resistance of 0.2 ohms?

determine m given that m>0 and the points (m,3) and (1,m) lie on a line with slope m

70. ## math

Suzy can paint a house in 4 hours. Peter can paint the same house in 6 hours. How long will it take to paint the house if they painted it together?

71. ## English

Thank you very much for your last corrections. Can you check these sentences, too? Thank you very much in advance. 1)Th urban population was affected by serious diseases such as smallpox nd typhus. 2)The majority of children died before the age of five

72. ## math

Find the best buy on Shampoo: 4oz for 1.16 7 oz for 1.52 15 oz for 3.39

1) Write the first five temrs of the geometric sequence a1 = 2 r=sqrt3 I know the first term is 2 but the sqrt 3 threw me off so I do not know how to find the next numbers. 2) Find the nth term of the geometric sequence. a2 = 3 a5 = 3/64 n=1 I know the

74. ## chemistry

2 litres of acetronitrile is accidently spilt in a school lab of dimensions 40x20x10m and most evaporates calculate the ambient concentration of acetonitrile reach assuming that there are no air changes in the lab

75. ## ruhdugeard

recent intergovernmental scale events

How do you write a character analysis?

Why is magic important in folktales?

78. ## english

what is 3 or 4 methods used to write about literature

What voltage is necessary to produce a current of 200 amperes through a resistance of 1 x 10^-3 ohms?

What is the current produced by a 9-volt battery flowing through a resistance of 2 x 10^-4 ohms?

81. ## physics

how do i go about in solving this? A helium atom (mass 4.0 u) moving at 596 m/s to the right collides with an oxygen molecule (mass 32 u) moving in the same direction at 402 m/s. After the collision, the oxygen molecule moves at 445 m/s to the right. What

82. ## calc

f(x) = e^x/1+e^x find the horizontal and vertical assymptotes? find the interval whr f is increasing? Find the inflection point. Find the interval where the function is concave up. Find the interval where the function is concave down.

83. ## calc

Consider the function below. (Round the answers to two decimal places. f(x) = 2x tan(x) -p/2 < x < p/2 (a) Find the interval where the function is increasing. Find the interval where the function is decreasing. (b) Find the local minimum value. (c) Find

Who's point of view is it from, if it's not any of the character's point of view?

85. ## Math

these are some problems i do not get any help is appreciated. These are copied exactly from the worksheet so i don't think i wrote anything wrong. Please explain it for me and could i get the answer thanks (: Log7 x= ½ log7 36 (log base 7) log x=2log 5+

86. ## Pre-Cal

1) Write the first five temrs of the geometric sequence a1 = 2 r=sqrt3 I know the first term is 2 but the sqrt 3 threw me off so I do not know how to find the next numbers. 2) Find the nth term of the geometric sequence. a2 = 3 a5 = 3/64 n=1 I know the

87. ## language arts

did i punctuate this sentence correctly? "They wanted to have the woman give birth to healthy babies, but they wanted to get as much work out of the woman as possible; therefore, the women were given lighter tasks."

88. ## Chemistry

A gas sample containing only SO2, PF3 and SF6 has the following mass percent composition: 30.4% SO2 and 28.4% PF3. Calculate the partial pressure (atm) of SO2 if the total pressure of the sample is 676.4 torr. I tried taking the total pressure in atm and

89. ## math

Here is the question I have to answer. Find the area of the specified figure. Show how you can use the formula for area to find the answer. I know you can't see the graph but can you direct me in the right direction of solving these. I don't know if there

90. ## Economics

If at least 1 of the conditions for a perfectly competitive market is not met, does this invalidate the model of perfect competition?

91. ## English

Is this sentence already correct? No we have not heard from Mrs. Whittaker since she moved to Iowa City. I think it should be No, we have not heard from Mrs. Whittaker since she moved to Iowa City. I don't think that you need one before the "since". Do

92. ## Corporate Finance

Taylor Inc. has preferred perpetual stock outstanding that has a par value of \$100 per share and a dividend yield of 9.4% of stated value. If the appropriate interest rate for Taylor’s preferred stock is 8.3%, how much is each share of preferred stock

93. ## chemistry(check my work)

Calculate the value of the equilibrium constant (Kp) for the reaction displayed if the following equilibrium pressure data were measured at 25.00 °C: P(H2(g)) = 0.2282 atm, P(I2(g)) = 0.1646 atm, P(HI(g)) = 5.462 atm. H2(g)+I2(g) = 2HI(g) is it like this,

Sue and Tom Wright are assistant professors at the local university. They each take home about \$42,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike and Karen, are 11 and 9. Were either one to die, they estimate that

95. ## Statistics 107

If two dice are rolled simultaneously, what is the probability that the number is the same on both dice?

96. ## PHYSICS

2 people,1 with 3 times the mass of the other, attempt a tug-of-war on frictionless ice. Show that the heavier person will gain a speed 1/3 that of the lighter person.

97. ## Foundations in Information Technology

Give an example of a subset and a proper subset. Explain the difference between a subset and proper subset.

98. ## floral design

cordyline terminails is the botanical name of the

99. ## Survey of Mathematics

Give an example of a subset and a proper subset. Explain the difference between a subset and proper subset. plz help

Radon-22 has a half life of 4 days. If you begin with 32 grams of radon, how many grams will be left after 20 days?

101. ## Economics

When Burton Cummings graduated with honors from the Canadian Trucking Academy, his father gave him a \$350,000 tractor-trailer rig. Recently, Burton was boasting to some fellow truckers that his revenues were typically \$25,000 per month, while his operating

102. ## chemistry

the specific heat of water is 4.184 j/g-c(celcius). how much heat is required to raise the temperature of 5.0 g of water by 3.0 c(celcius)?

103. ## chemistry

how much energy i kj is required to change the temp of 1.00 kg of fe from 25.0 degrees celsius to 1515 degrees celsius?

Why would eggs containing terrible things, are so beautiful on the the outside and eggs containing beautiful things, are plain on the outside?

105. ## Physics

A 500-kg elevator's cable snaps at a height of 15m. fortunately, there's a spring at the bottom of the shaft. If the spring has a spring constant of 500N/m, calculate how much it will be compressed before the elevator comes to a stop.

106. ## spanish

i have to write a sentence using tocar. is this correct a mis padres les toca arreglar la sala.

5^2x=3

108. ## Physics

A new computer has a virus and you throw it out the window which is 10m above the ground. If the mass of the computer is 5.7kg, how much kinetic energy will it have when it has fallen 5m?

how much energy i kj is required to change the temp of 1.00 kg of fe from 25.0 degrees celsius to 1515 degrees celsius? so it would be q= (.449)(1.00)(1490)-correct?

110. ## physics

10 joules of work is done accelerating a 2.0 kg box from rest across a frictionless horizontal surface. calculate the total kinetic energy gained by the box.

111. ## science

where in the renal tubule is potassium and sodium reabsorbed by the blood?

112. ## Language Arts 7th Grade

I am doing a project on Percy Jackson and the Olympians: The Lightning Thief. I need to five 5 Hero's Journey Archetypes, but i can't seem to think of any except for 2 which are The Underworld and The Hero. I do not have my archetypes list with me so i am

113. ## Chemistry

I need help on a complex ion equation. I am not sure what the products are. Please help. Fe(OH)2 (s) + NaOH(aq)-->

114. ## his 125

if the 14 Points were actually followed could World War II have prevented? Even without the League of Nations would the reforms Wilson advocated for foreign relations have worked?

115. ## trig

which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane

116. ## College Accounting

Night office manager's returned \$100 worth of supplies to Gordan office supplies. Night received a \$100 reduction on the account. Which to account was affected

117. ## biology

need a list describing at least five similarities and three differences between plant and animal cells. In addition i need five internal structures of plant or animal cells and describe their functions in my own words.

Do you think all people in real life are all good or all bad? Why?

What are some strategies of persuasive messages used by etailers

120. ## Physics 203

Mars rotates on its axis once every 24.8 hours. What is the speed of a geosynchronous satellite orbiting Mars? What is the altitude of a geosynchronous satellite orbiting Mars?

121. ## trig

which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane

122. ## PLZ HELP!!!! communication

DEFINITION----Selective listening: Involves focusing only on particualr parts of communication QUESTION---Selective listening is effective because we focus on the most important parts of a message. True or False my only problem is the deffiniton says

123. ## astronomy

How many light minutes are in a light year?

124. ## Human Services

1. Analyze the following ethical dilemma from the perspective of rationality and respect (Dilemma Tucker & Marcuson, 1998). A local nonprofit organization that networks with other service agencies in the area was designed to fill gaps in needed services

125. ## economics

Should the manager of EverKleen continue to operate or should the firm shut down

126. ## english

I just need something to get me started. Do you know of a Cultural Symbol or a Cultural Tradition I can write about. I've been trying to do this project for weeks and I do not know what to do. I know it's easy, but I can't find what it;s asking. please

127. ## communications

I have to write about if I think smell should be a non-verbal communication. This is my into and I have some notes, but that's it. I don't know hat else to put and I know it's not enough. Smell communication appears to be unrelated to non-verbal

128. ## college

One Number Is 3 Times Another Number. If The Sum Of The Reciprocals Of The Numbers Is 1/6, What Are The Two Numbers?

129. ## accounting

If you are puchasing furniture from your business and want to use your own owners equity instead of cash what would be the journal entry if any

130. ## science

You are a board member of your Home Owner’s Association. At your next meeting, your goal is to educate other homeowners about energy conservation

131. ## English

Can you please tell me if the following corrections are all right and help me improve them? Thank you very much in advance. 1)During Walpole's government England was fortified in economy and in the relationships between other countries. Correction: ...

132. ## HIV and AIDS

I have to write a 1 to 2 page report about how research and medical advances in the field of AIDS. then I need to mention laws, regulations, and public health warnings that are given today to protect society. I can't find any laws in Ontario (my home

133. ## human resources

Discuss, in 200 to 300 words, the four steps an organization should take to change its personality profile. What should the organization consider before developing such a plan?

134. ## Physics

In the absence of external torques, the angular momentum of a system is conserved. An artificial satellite orbiting the Earth quadruples its kinetic energy. Assuming no external torques act on the system, the radius of the orbit will ... a. Decrease by a

135. ## Chemistry

How much heat on joules is required to melt 3mol of ice? (the heat of fusion is 6.01 kj/mol)

136. ## management

Today, many organizations and managers face new challenges on a daily basis. One critical aspect of the skills that managers lack is planning. You have been asked by your manager to conduct a preliminary search of recommending the two most common types of

137. ## algebra

Solve by the elimination method 0.3x-0.2y=4 0.4x+0.5y= - 55/17 Thank you

138. ## social sciences

Discuss the importance of social capital in achieving sustainable economic development in Caribbean economies.

139. ## algebra

Could you please help me solve. 3x+10>=7 and 2x-14>=-8 >= means greater than equal then thank you

140. ## Physics

In a hydrogen atom, if the radius of the orbit of the electron is doubled, then its energy will ... >> Increase by a factor of 2??

141. ## Physics

To reduce the frequency of a particle when it behaves like a wave, we need to ... -Increase its mass -Reduce its speed -Increase its speed -Hit it with low energy photons -Hit it with high energy photons Does the same wave theory apply? i.e. V = f(lambda)

142. ## Math for teaching.

m∠IJN is 55°; m∠IJN = m∠PLM. What is the measure of ∠FGC? Can you help me this. I do not understand at all

143. ## government

You are a board member of your Home Owner’s Association. At your next meeting, your goal is to educate other homeowners about energy conservation.

144. ## math

A recent poll of 500 randomly chosen voters concludes that 60% of the voters prefer this canidate. Determine the probability that the candidate will get less than 56% of the votes. How do I do this type of question? i have a few to figure out.

145. ## physics

How do i find this? A shooting star is a meteor that burns up when it reaches Earth's atmosphere. Many of these meteoroids are quite small. Calculate the kinetic energy of a meteoroid of mass 6.0 g moving at a speed of 45 km/s and compare it to the kinetic

146. ## Programming Design

Velma and her husband Victor run a full service veterinary clinic. They would like a program to help them calculate costs for their clients. Victor, who is the vet, charges a flat fee of \$100 for medical services and a flat fee of \$50 for shots. Velma does

147. ## English

What is the difference between 'dish' and'plate'?

149. ## physics

how do i go about in solving this? Sean climbs a tower that is 84.6 m high to make a jump with a parachute. The mass of Sean plus the parachute is 66.8 kg. If U = 0 at ground level, what is the potential energy of Sean and the parachute at the top of the

150. ## Geography

51. How do the monsoons and the mountains influence the climate in South Asia? Include in your answer an analysis of how monsoons can be responsible for survival and hardship in this region. Seasonal shifts in the winds are called monsoons. In winter, the

151. ## math

In the linear equation: y =-4x + 5 what is the y intercept?

152. ## Geography

52. Do you think that the British influence in India was positive or negative? Explain your answer. Can I please get some help with this question? Thank you.

153. ## English

1. He painted food for hungry people. 2. He painted food for the hungry. (Are both the same?) 3. In China, there lived a poor boy who loved to paint(,) and whose name was Ma Liang. (Is this sentence grammatical? Do we have to use 'comma' before 'and' or

154. ## physics

in what direction will a freely suspended magnet come to rest?

155. ## physics

in what direction will a freely suspended magnet come to rest?-how can you determine which direction is north and which is south?

156. ## physics

Dirk pushes on a packing box with a horizontal force of 67.0 N as he slides it along the floor. The average friction force acting on the box is 3.00 N. How much total work is done on the box in moving it 3.10 m along the floor?

157. ## physics

how would i solve this? A sled is dragged along a horizontal path at a constant speed of 1.5 m/s by a rope that is inclined at an angle of 30.0° with respect to the horizontal (the figure below). The total weight of the sled is 470 N. The tension in the

158. ## Computers

Does Web-based mail allow me to use a server or browser as e-mail client software? This is confusing since I might use Google to browse for my email and it might also serve as my email provider through my Gmail account. In either case, I hadn't considered

159. ## History

1) What factors shaped the move from colonial, country life to modern, urban life? What was urban city life like during the rise of urbanization? How was it different or similar to modern urban life? 2) With the emergence of urban cities came the need for