# Questions Asked onMarch 26, 2014

1. ## CHemistry

SO2(g) + H2O(l)= H2SO(l) What mass of sulfur dioxide is needed to prepare 36.86 g of H2SO3(l)

Mooncorp Insurance has quoted you an annual premium to insure your car of $3100. You are offered a 15% discount if you pay the lump sum immediately. They also offer an alternative payment method. You can pay the account in full by making 12 equal beginning asked by Anonymous 3. ## physics A baseball of mass m1 = 0.32 kg is thrown at a concrete block m2 = 6.25 kg. The block has a coefficient of static friction of μs = 0.71 between it and the floor. The ball is in contact with the block for t = 0.195 s while it collides elastically. What is asked by Anonymous 4. ## math Write an equation of a line perpendicular to line AB below in slope-intercept form that passes through the point (7, 6). A (0,1) B (-2,5) asked by Henry 5. ## Math Homing pigeons avoid flying over large bodies of water, preferring to fly around them instead. Assume that a pigeon released from a boat 1 mile from the shore of a lake flies first to point P on the shore and then along the straight edge of the lake to asked by Merfit 6. ## physics Suppose that a party balloon is spherical, has a radius of 16 centimetres and is filled with helium. Furthermore suppose that we do our experiment under standard atmospheric conditions, when the air density is $$\rho = 1.225 kg/m^3$$. How many of these asked by Nick 7. ## Chemistry generic salt, AB3, has a molar mass of 333 g/mol and a solubility of 2.30 g/L at 25 °C. What is the Ksp of this salt at 25 °C? asked by Nickcole Jackson 8. ## chemistry a piece of metallic iron (10 moles) was dissolved in concentrated hydrochloric acid. the reaction formed iron (II) chloride and hydrogen gas. how many moles of iron (II) chloride were formed? asked by dee 9. ## pre calculus Find the exact values: tan(7pi/4) - tan (pi/6) asked by Anonymous 10. ## Algebra Find the y value for the point that splits segment EF in half if point E is located at 5,-2 and point F is located at -1,3. asked by Hailey 11. ## Calculus You are given a piece of sheet metal that is twice as long as it is wide an has an area of 800m^2. Find the dimensions of the rectangular box that would contain a max volume if it were constructed from this piece of metal by cutting out squares of equal asked by Marie 12. ## phy113 An ungraduated mercury thermometer attached to a millimeter scale reads 22.8 mm in ice and 242mm in steam at standard pressure. What will the millimeter read when the temperature is. 20oC? asked by sam 13. ## I need help with Physics A baseball of mass m1 = 0.46 kg is thrown at a concrete block m2 = 8.25 kg. The block has a coefficient of static friction of μs = 0.81 between it and the floor. The ball is in contact with the block for t = 0.165 s while it collides elastically. m1 = asked by Maura 14. ## science Na2SO4(aq)+CaI2(aq)→CaSO4(s)+2NaI(aq) as net ionic asked by Anonymous 15. ## Math At some point in the season, the Unicorns had won 60% of their baseball games. After that point, they won 8 more games and lost 2, to finish the season having won 65% of their games. How many games did the Unicorns play during the season? asked by Anonymous A. 16. ## College Calculus The hands of a clock in some tower are 4.5m and 2m in length. How fast is the distance between the tips of the hands changing at 9:00? (Hint: Use the law of cosines) The distance between the tips of the hands is changing at a rate of _______ m/hr at 9:00? asked by MG 17. ## Chemistry Which of the following substances could be heated from 20°C to 100°C most quickly? Assume identical heat sources are used on all substances. Specific Heat (J/g degrees C) Gold: 0.1291 Platinum: 0.1326 Silver: 0.2350 Tin: 0.2274 Can you please explain how asked by Angela 18. ## Phsyics In a shipping yard, a crane operator attaches a cable to a 1130-kg shipping container and then uses the crane to lift the container vertically at a constant velocity for a distance of 30 m. Determine the amount of work done by each of the following. (a) asked by ANdy 19. ## Geometry I need help in this question!!! CD has an endpoint at (2,-1) and a midpoint at (8,3). which measure is closest to the length of CD? A. 20.4 units B. 8.4 units C. 14.4 units D. 11.7 units asked by Alicia 20. ## Math Could somebody please help me with a few Math questions? 1. Provide an appropriate response. True or False? 100.567 is between 10 and 100. 2. Use an annual percentage rate table to solve the problem. A family purchased a new ski boat for$20,000. The loan

Line AB contains points A (-8, -4) and B (1, -5). The slope of line AB is A. -7 B. -1/7 C. 1/7 D. 7

22. ## Geometry

The vertices of a triangle are P(-3,8), Q(-6, -4), and R (1, 1). Name the vertices of R (smaller letters)y-0 (triangle PQR). A. P'(-3, 8), Q'(-6,-4), R'(1,1) B. P'(-3,-8), Q'(-6,4), R'(1,-1) C. P'(3,-8), Q'(6,4), R'(-1,-1) D. P' (3,8), Q'(6,-4), R'(-1,1)

23. ## Calculus

If 40 milligrams of strontium-90 radioactively decays to 12 milligrams in 30 years, find its half-life (the number of years it takes until half of it remains). Use the formula A = p ⋅ e−kt, where p is the amount and A the (smaller) final amount.

24. ## chemistry

Which nucleophile, when reacted with 1-bromopropane (CH3CH2CH2Br), would produce an ether? I- OH- -OCH3 SH-

25. ## math

period of x(t)=10 sin(12 pi t)+4 cos(18 pi t)

26. ## `Statistics

A public relations firm found only 9% of voters in a certain state are satisfied with their US senators. How large a sample of voters should be drawn so that the sample proportion of voters who are satisfied with their senators is approximately normally

27. ## Statistics

A population has a standard deviation of 15.2. How large a sample must be drawn so that a 95% confidence interval for the population mean will have a margin error equal to 3.5?

60. ## English/Social Studies

I'm writing an essay and need help coming up with economic reasons to to be against Caps on Punitive Damages. Google is not turning up what I need. I need how will implementing this program be bad economically?

61. ## math

what is -8 squared +(17 - 9)x 4 + 7

62. ## Chemistry

CIE and NIE for 2 K3PO4 + 3 Fe(NO3)2 --> 6 KNO3 + Fe3(PO4)2

63. ## Chemistry

he Ksp of mercury(II) hydroxide, Hg(OH)2, is 3.60 × 10-26. Calculate the solubility of this compound in g/L. I came up with x=2.8*10^-13

64. ## Biology

Why does an increase in light intensity cause the rate of photosynthesis to increase?

65. ## chemistry

A solution is made with 2.0 g of substance that cause the temperature of 75.0 g of water to decrease from 23.1 C to 18.7 C. The specific heat of water is 4.18 J/g C.

66. ## 6th grade Lang Arts

Can you check my answers? Name type of sentences 1. I believe my students are ready to take this test because everybody has worked hard to learn the material. Ans:complex independent - I believe my students are ready to take this test dependent - because

70. ## Socials

What year was Canada's first railway : the Champlain and Saint Lawrence railroad built in?

71. ## integer Math

Estimate the value of integer 52 to the nearest whole number

72. ## Chemistry

a 4.000grams sample of aluminum metal is added to a solution containing 5.000grams of dissolved iron chloride. the reaction results in the formation of aluminum chloride and metallic iron. when the reaction is complete, unreacted aluminum remains, and this

73. ## physics

what is the final temperature when 3 pound of water at 100 degree fahrenheit is added to 500 lb at 40 degree fahrenheit

74. ## social studies

The political strategy in which the Republicans and Populists joined together was known as___________ movement.

75. ## math

for the line segment whose endpoints are r(1,2) and s(6,7), find the point located 3/4 the distance from r to s.

76. ## Math

Dominic drove 324 miles from Salt Lake City,Utah, to Bryce Canyon National Park in 6 hours and 34 minutes. What was his average speed, in miles per hour?

77. ## science

A 3.5-cm tall object is placed 10.0 cm in front of a concave mirror having a focal length of 14.5 cm. Find the location position and height by drawing a ray diagram to scale. Verify your answer using the mirror and magnification equations. cm (location) cm

78. ## Math

There are ten yellow 6 green 9 orange and 5 red cards in a stack of cards turned faced down once a card is selected it is not replaced what is the probability they will get two yellow cards

79. ## MATH

14% of what number is 84?

80. ## Calculus

The height in feet above the ground of a ball thrown upwards from the top of a building is given by s=-16t^2 + 160t + 200, where t is the time in seconds. If the maximum height is 600 feet, what is v^-1(32)? The answer is supposed to be 4 seconds, but I

81. ## Calculus

If position is given by p(t)=t^2 +1, find the velocity v(t) at t = 2. I'm completely lost as to where to even start with this problem.

82. ## E.M.U

For the same solution components as in part (f), buffers are prepared with a total concentration of NH3 + NH4Cl = 0.10 M. The pH values are 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, and 11.0. Find the molar solubility of CdS in these solutions

83. ## physics

What force should the woman in Figure 9.45 exert on the floor with each hand to do a push-up? Assume that she moves up at a constant speed.

84. ## Math!!!!

y-(-3)= -1/2(x-(0)) How do you solve this equation and graph?????

85. ## Physical science

A man loads 1000 sacks of flour into a truck in 30.0 minutes. Each sack has a mass of 20.0kg and the man must lift each sack 1.00m from a cart up onto the truck bed. how much power did the man develop?

86. ## English II

That day I was so worried that I

87. ## physics

Others say that the balloon was 23 metres high and 14 metres wide. Calculate the temperature of the air in the balloon (in degrees Celsius) for this situation as well

108. ## Math

The Brock family uses a 12-cup coffee maker, which leaks. For every 6 cup of coffee brewed, 1/12 cup leaks out. Mrs. Brock makes a full pot. If 4 coffee drinkers receive the same amount, how many cups (use a mixed number) will each individual receive?

109. ## Math

Historically, an acre was the amount of land that an ox could plow in one day, which was deemed to be 4,840 square yards. Supposing that an ox could plow 4,840 square yards in a day, how manyyears would it take an ox to plow a square mile?

110. ## english essay

* I need help writing research essay. The topic is to write about an issue or problem that you want to change. Well, I am mostly interested in Science, particularly Chemistry and Nature.

111. ## MOUAU(physics)

F̶̲̥̅̊o̲̣̥я̲̣̥ a metallic conductor,Ohm's law holds provided

112. ## Math

A store has found that 60% of their customers spend more than $75 each visit. What is the probability that the next two customers will spend more than$75.

113. ## physics

How long will it take a watch dropped from a bridge (20.3 meters above the water) to hit the water?

114. ## global warming science

1a (5 points possible) A schematic of a two layer model of the Earth-atmosphere energy balance is shown in the image below. The atmosphere is assumed to be transparent to solar radiation, and the total solar radiation absorbed by the surface is written in

115. ## home economics

what are the reasons for disposal of fullness

117. ## Chemistry

So my chem professor had a slide with a question that follows: If you combine 100 ml of 0.10 M HCl and 100 ml of 0.10 M NaOH, and find that the temperature goes up 0.67 degrees K  What is ΔH° for the reac/on: OH(aq)- + H+(aq)->H2O(l)(c H2O= 4.18 J/°C

118. ## Math

What is the pattern for 2,6,4,12,10,30,28

119. ## Maths

4x+1,2x+4 and x+3 are first three terms of arithmetic sequence determine the value of x

120. ## Algebra

1) which number(s) is/are a solution of the inequality? There can be more than one correct answer. A) -13 B) 25 C) 10 D) 33 2) which number(s) is/are a solution of the inequality? There can be more than one correct answer. A) 1 B) 2 C) 3 D) 4

asked by Help me 2 questions
121. ## American History

During the bitter struggle over reconstruction policy, Congress overrode Johnson;s veto of the a. bill extending the life of the Freeman's Bureau. b. bill intended to nullify the soth's black codes. c. Radical Reconstruction Act. d. Civil Rights Act.

122. ## math

36/1.5 = ? how to divide this

123. ## Maths

Which term of the sequence has a value of -123?

124. ## American History

Which of the following statements is true regarding the constuction of the transcontinental railway? a.Most workers for the Union Pacific Railroad were Chinese. b. Most workers on the Central Pacific leg of the railway were Chinese. c. Construction began

125. ## LA PLS HELP!!!!! (check my work)

1. What causes Brer Lion to be tied to a tree? (1 point) >>>his fear>Brer Lion will never trust Brer Rabbit again.>brother.>to aid in your comprehension

asked by sonamy & robstar 4eva
126. ## Algebra

Hi I have a question concerning how to factor on a TI84plus what are the steps to doing that? much help is appreciated thanks!

127. ## math

John is looking at a map and it says that 1 inch = 50 miles. John wants to travel to a town that is 7.5 inches away on the map. How many miles must he travel to get there?

128. ## Chemistry

Which nucleophile, when reacted with 1-bromopropane (CH3CH2CH2Br), would produce a thiol? OH- SH- I- -OCH3

129. ## American History

Which of the following noted American authors wrote works that supported slavery? a. Ralph Waldo Emerson b. Henry David Thoreau. c. Edgar Allan Poe d. Harriet Beecher Stowe

130. ## Equations Help

how many real number solutions are there to the equation y=5x^2+2x-12 how many real number solutions are there to the equation y=3x^2+18x+27 Can somebody tell me how to get the solutions?

131. ## Science

If an astronaut could hop 40 cm high on Jupiter, how high could he or she jump on earth? On the moon? Please help me fast I have a bunch of questions over this and I have no idea what this even means

132. ## Math

-2 1/5 divided by -3 2/3. Show work also thanks (:

133. ## Math

The length of a table is 3 1/3 inches. The width is 1/5 of length. Find the width and perimeter of table

134. ## Math

Order from greastest to least -1 13/14 , -1.9 , -1 9/11, -1.95 show work

135. ## Chemistry

CIE and NIE for 2 K3PO4 + 3 Fe(NO3)2 = 6 KNO3 + Fe3(PO4)2

136. ## Math

Use the following four coordinates to determine which one has a distance of 10 units from point C (1, 2). (3, 4) (7, 1O) (6, 7) (8, 9)

137. ## Math. Help

Anna's dad is replacing a table in their house. The table is currently 3 feet wide by 4 feet tall. Her dad wants to add 9 inches to the legs of the table. What is the new perimeter of the table in feet?

138. ## Physical science

An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronaut's mass is 100kg. He takes a 1kg "safety weight" and shoves it away in exactly the direction of his motion at a speed of 6m/s. at what speed does

139. ## Math

If Mike has 8 dimes and 6 pennies in his pocket. If he randomly selected one coin and then a second coin without replacing the first, what is the probability that both coins were dimes?

140. ## math

Solve for v: C=6u2v

141. ## Math

solve for y 2y = 18x y - 6 = 2x trying to help with homework and at a loss here.

142. ## math

solve for A B=3/8(A-10)

143. ## Fractions

Last night 16/28 of the tenth grade girls and 19/30 of the tenth grade boys went to go ice skating. Did a greater fraction of tenth grade girls or boys went ice skating? Prove it.

144. ## Physics

suppose that you drop the ball from a height of about 2m above the floor, releasing it from rest. on the axes that follow, sketch your predictions for the velocity-time and acceleration-time graphs of the ball's motion. assume that the positive y direction

145. ## math

a painter is painting the ceiling of a square room. The walls are all 15 ft long. If a gallon of paint covers 45 square feet, how many gallons of paint will be needed to cover the entire ceiling? A. 4 Gallons B. 5 Gallons C. 6 Gallons D. 3 Gallons

146. ## math

Tessa feeds her dog 3 3/4 cups of dog food per day. If she buys a bag of food that has 165 cups how many days will the bag of dog food last?

A drawer contains 3 blue ribbons, 4 red ribbons, and 3 green ribbons. A ribbon is randomly chosen from the drawer, replaced, and another ribbon is chosen. Find each probability"

148. ## social studies

During world war I, where in Louisiana was a large military camp establish? a) Baton Rouge b) Crowley c) Pineville d) Vidalia

149. ## social studies

The political strategy in which the Republicans and Populists joined together was known as___________ movement.

Tower A is about 1450 feet tall. Tower B is about 4/5 as tall. How tall is the B tower?

151. ## Finance

One of your customers is having trouble paying her account. You agree to a repayment schedule of $300 per month. You charge 1% per month interest on late accounts. If the current balance is$2000, how long will it take to pay off the debt?

152. ## Science

Without newtons second law would there be gravity on earth??????? Help!!! And also how are newtons second and third laws of motion important to your everyday life?

153. ## health

people living with HIV can have a longer and healthier life by ____

154. ## social studies

What are the other special benefits that senators and representatives receive beyond salaries?

155. ## english

What is the tone in "a thankless experience

156. ## math

find the next term in the sequence 6,11,21,36,56,81

157. ## Pre calculus

For the most part, will a law of cosines always be one triangle? As in one triangle to solve?

158. ## Chemistry

Write the reactions that occur for the benzoic acid/sodium benzoate buffer when you react it with HNO3 and KOH. How would I go about writing it? Thanks.

159. ## Precalculus II

Find all real solutions to four decimal places to the equation sec^2(x)+ 3 tan(x)=5

160. ## Science

Compare and contrast a desert ecosystem and a forest ecosystem.

161. ## Calculus

The vertical position of an object is modeled by the function h(t)=-16t^2 +5t+7, where h is measured in feet and t is measured in seconds. Find the object's initial velocity (that is, the velocity at t=0). Is it 5 feet per second?

162. ## Math

Write an equation of a line perpendicular to y=1/2x-5 in slope-intercept form that passes through the point (2, -7).

163. ## chemistry

URGENT!!! How many grams of sodium benzoate (NaC6H5CO2) must be added to 500 mL of 0.15 M benzoic acid (HC6H5CO2) to make a buffer solution with pH of 5.0? Assume no volume change upon sodium benzoate dissolution. Ka = 6.46 x 10-5 How would I go about this

164. ## Chemistry

Given that the vapor pressure of water is 17.54 Torr at 20 °C, calculate the vapor-pressure lowering of aqueous solutions that are 1.90 m in (a) sucrose, C12H22O11, and (b) aluminum chloride. Assume 100% dissociation for electrolytes. I got .5799 Torr for

165. ## Chemistry

Vitamin K is involved in normal blood clotting. When 1.05 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 3.53 °C. The freezing point and Kf constant for camphor can be found here. Calculate the molar

166. ## Chemistry

A hospital saline solution is analyzed to confirm its concentration. A 60.0 mL sample with a mass of 50.443 g is evaporated to dryness. (a) If the solid sodium chloride residue has a mass of 0.413 g, find the mass/mass percent concentration of the NaCl

167. ## physics

A simple pendulum consists of a small object of mass 1.2 kg hanging at the end of a 2.07 m long light string that is connected to a pivot point. Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string