# Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18

40,002 questions, page 288
1. ## algebra

a ball is thrown straight up into the air with an initial velocity of 128 ft/sec, the total amount of time in seconds that it takes the object to return to the earth can be calculated by using the quadratic, 128t-16t^2=0. Determine the "flight time," t, of

asked by Shelly on December 12, 2011
2. ## math

Assume the brakes of an automobile produce a constant deceleration of k ft/sec^2. Determine what k must be to bring an automobile traveling 60 mph to a rest in a distance of 100 ft from the point where breaks are applied? With the same k, how far would a

asked by Barry on April 15, 2015
3. ## Physics

A rotating turntable of mass 200g and radius 10 cm is uniformly accelerated from rest to attain it's maximum velocity of 33 and half revolution per minute through an angular displacement of 240 degree . Determine the (1). uniform angular acceleration.

asked by Bill on May 29, 2018
4. ## Chemistry

When 1914.8C of electricity was passed through two electrolytic cells connected in series 0.6g of a metal M1 was deposited in one of the electrolyte, if 2.14g of another metal M2 was deposited at the other cathode and the sum of the quantity required to

asked by Jeane on December 15, 2018
5. ## Math

a conical vessel 6 meters across the top and 4 meters deep is filled with water. A portion was spilled out by slanting the cone such a way that its slant height is in vertical position. determine the cross section area of the water surface that remains on

asked by Shanu on January 22, 2015
6. ## electrostatic physics

2. At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.9 × 10^-15 m. What is the magnitude of the repulsive force pushing these two spheres apart? The value of

asked by jc on February 12, 2012
7. ## Grammar

Determine if the following sentence employ Correct use of Commas and apostrophes.True=correct False=wrong 1. The child was initially started on ceftriazone, but developed a rash and was therefore changed to chloramphenicol. Answer: TRUE nedd the comma

asked by Leslie on May 11, 2011
8. ## math

Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The

asked by Anonymous on April 30, 2014
9. ## chemistry

Can someone please explain how to do this question? A 0.057M solution of a weak acid has a pH of 4.93. Determine the ionization constant, Ka, of the acid. a) 2.1 x 10^-4 b) 2.4 x 10^-9 c) 4.1 x 10^-8 d) 2.8 x 10^-7 e) 1.4 x 10^-10 -- Well, to be honest, I

10. ## statistics

Dylan wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.03? [To find n, use the

asked by fm on April 4, 2014
11. ## maths

An initial-value problem is given by the differential equation, f(x,y) = x + y, y(0) = 1.64 The Euler-midpoint method is used to find an approximate value to y(0.1) with a step size of h = 0.1. Then use the integrating factor method, to find the exact

asked by Matthew on September 29, 2013

Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

asked by ibrahim on April 4, 2011

Determine the amount of each payment to be made to a sinking fund in order that enough money will be available to pay off the following loan. $29,000 loan, money earns 12% compounded annually, 42 months. I tired doing this using the future value of an asked by Ben on February 18, 2010 14. ## physics A helicopter is flying with a constant horizontal velocity of 144.2 kmph and is directly above the point A when a loose part begins to fall. The part lands 6.5seconds later at point B on an inclined surface. Determine (a) The distance 'd' between points A asked by Anonymous on April 16, 2015 15. ## Chemistry use the appropriate standard reduction potentials in the appendix of your book to determine the equilibrium constant at 285 K for the following reaction under acidic conditions 4H+(aq) + MnO2(s)+2Fe+2(aq)----> Mn+2 (aq)+2Fe3+(aq)+2H2O(l) The reductions asked by Rachel on April 28, 2016 16. ## Chemistry Write the balanced chemical equation for the decomposition of sodium azide. If this is a redox reaction, show half reactions and determine if spontaneous. The chemical equation is 2NaN3(s) -> 2Na(s)+3N2(g) right? I am confused on the oxidation states for asked by Heather on October 8, 2012 17. ## Physics An equivalent definition can be based on the fact that an exposure of one roentgen deposits 8.30 x 10-3 J of energy per kilogram of dry air. Using the two definitions and assuming that all ions produced are singly charged, determine the average energy (in asked by Beth on August 4, 2012 18. ## math Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat asked by ibrahim on April 4, 2011 19. ## Physics { The subscripts are in curly brackets } A mass m is at rest on a horizontal frictionless surface at t=0. Then a constant force F{0} acts on it for a time t{0}. Suddenly, the force doubles to 2F{0} and remains constant until t=2t{0}. Determine the total asked by Phil on September 16, 2010 20. ## CHEM CaCO3 can be roasted to produce CaO ans CO2 this reaction is carried out in flask connected to an open end Mercury manometer the atmospheric presure in 762tor if the pressure of the CO2 produced is 0.254 determine the total pressure asked by mow on November 13, 2014 21. ## CHEMISTRY! A 20.00 mL of 0.200mol/L magnesium chloride solution is added to a 95.00 mL of 0.800 silver (I) nitrate solution, and a precipitate is formed. a.Determine the concetration of the nitrate ions at the end of the reaction I was able to calculate the things asked by michael on April 22, 2014 22. ## Chemistry Draw the structure of the tripeptide “Asp-Ala-Ile” at pH = 1. Then determine the total charge of the tripeptide. The side chain of each amino acid is shown below in the form at pH = 7. (So when you use them to answer this question, you might need to asked by Jennifer on April 27, 2017 23. ## math formula? Mary would like to save$10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end of each week in a savings account that pays 12%/a, compounded monthly, to meet her goal? d. Determine the weekly deposit

asked by Aly on January 20, 2011
24. ## chemistry

I did a chemistry lab on polarimetry where we separated two enantiomers into individual salts and then used a polarimeter to determine the specific rotation and optical purity. What is the relationship of the proline salts to one another? i said that being

asked by laura on March 31, 2008
25. ## differential equations

Search: A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine

asked by mike on April 18, 2011
26. ## physics

1 - Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25.

asked by zainab on March 25, 2014
27. ## math

Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

asked by tom on April 4, 2011
28. ## physics

Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The

asked by zainab on March 25, 2014
29. ## Production and Operations management

A ball bearing assembly firm wants to set up an assembly line which must have an output of 60 units per hour. The work elements are A to J and the task times are 40, 30, 50, 40, 6, 25, 15, 20, 18 and 30 seconds respectively. a. Determine the cycle time

asked by Special on July 6, 2010
30. ## Math

Triangle AOB has vertices A(4,4), O(0,0), and B(8,0). EF right bisects AB at P. GH right bisects OA at Q. Determine the coordinates of the circumcentre of triangle DEF. I really need help, please. Today, my teacher just gave us all this work for over the

asked by Katja on October 12, 2007
31. ## Physics4

2. At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.9 × 10^-15 m. What is the magnitude of the repulsive force pushing these two spheres apart? The value of

asked by jc on February 12, 2012
32. ## physics

Two fi gure skaters are moving east together during a performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2 pushes on skater 1 with a force of 64 N [W]. Assume that no friction acts on either skater. T / I (a) Determine the acceleration of

asked by shan on April 16, 2012
33. ## cuyamaca

Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of $8.00 per unit. During the year, purchases were: Feb. 20 600 units at$9 Aug. 12 300 units at $11 May 5 500 units at$10 Dec. 8 200 units at \$12 Eddings Company uses a

asked by ali on October 19, 2010
34. ## Physics and chemistry

Chapter 1 & 2 Review Questions 1. Compare and Contrast the two main branches of physical science. 2. Distinguish between scientific laws and scientific theories. 3. Describe the steps of the scientific method. 4. Explain the objective of a consistent

asked by mido on December 13, 2010
35. ## math!

for f(x)=x^2+kx+k, determine all values of k such that f(x)>0 The minimum of f(x) occurs when f'(x) = 2x + k = 0, x = -k/2 The value of f(x) at that minimum is f(-k/2) = k^2/4 -k^2/2 +k = k^2/4 + k That minimum is >0 if k>0 or k< -4

asked by moi on October 29, 2006
36. ## Math

Determine the solution of the equetion: 2cos x-1=0? 2cos x=0? and 2cos x+1=0?

asked by Miley on September 8, 2015
37. ## Math

Determine whether or not the network is traversable. (Points : 1) No, it is not traversable. Yes, it is traversable.

asked by CC on June 7, 2011
38. ## Functions

I need help with the following question. I am sure how to tell if something is a function or not. Determine whether the realtion is a function. {(-6,2),(-2,5), (3,2),(3,-7)} I think its not a function, but then again I think it is cause you have different

asked by Soly on September 1, 2007

Let f(x)=[x^3-9x] [] --- absolute value a. does f'(x) exist? b. does f'(3) exist? c. does f'(-3) exist? d. determine all extrema of f.

asked by dt on November 4, 2008
40. ## Physics

A person lifts a 5.2 kg cement block a vertical distance 1.2 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process.

asked by Mike on January 9, 2012
41. ## physics

a helicopter of mass m has an acceleration of magnitude 0.12 upward. a)determine the force required to cause this aaceleration? b) how much work is done by this force in moving the helicopter a distance deltay upward?

asked by samima sabah on October 31, 2010
42. ## Math: Scalar Equation of a Plane

Determine whether the following pairs of planes are coincident, parallel and distinct or neither. a) x + 3y - z - 2 = 0 and 2x + 6y - 2z - 8 = 0 TEXTBOOK ANSWER: parallel and distinct Please provide a step by step solution so I can understand the

asked by Anonymous on March 25, 2008
43. ## Physics

3.2 kg block is given an initial velocity of 12 m/s across horizontal surface. after travels 8 m speed is 2.4 m/s. determine coefficient of friction bewern block and surface and how far it travels before coming to rest

asked by Anonymous on November 3, 2014
44. ## dynamics

the power developed by a man in riding up a 6 percent grade at a constant speed is 200w. the man and his bicycle have a combined mass of 80 kg. Determine the speed of riding

asked by Anonymous on July 22, 2013
45. ## Calculus

3. Discuss the graph of y=x/3+2+3/x. Determine the values of x for which the graph is a. Continuous b. Rising c. Falling d. Concave upward e. Concave downward f. Has a relative maximum g. Has a relative minimum

asked by Anonymous on January 16, 2012
46. ## chemistry

A steel tank contains carbon dioxide at 34 celsius and is at a pressure of 13.0 atm. Determine the internal gas pressure when the tank and its contents are heated to 100 celsius

asked by lavonne on October 18, 2010
47. ## Physics

A 3.00 uF and a 5.00 uF capacitor are connected in series cross a 30.0V battery. A 7.00 uF capacitor is then connected in parallel across the 3.00 uF capacitor. a)Calculate the equivalent capacitance of the circuit I think the answer is 3.33 uF.

asked by ALan on February 16, 2010
48. ## Math

Determine the costing plaster work of room of size 15x20 ft. Take height of room =10ft. Consider two windows of size 5x4 ft,assume rate of plaster Rs.20 sq.ft ??

asked by Devendra on August 4, 2017
49. ## Physics

A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.

asked by Megan on February 7, 2011

The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure

asked by Brandon on June 7, 2015

The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure

asked by Sasha on June 6, 2015
52. ## Math

The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure

asked by Sasha on June 6, 2015
53. ## chemistry

assuming the density of a 5% acetic acid solution is 1.0g/ml, determine the volume of the acetic acid solution necessary to neutralize 25.0 ml of 0.10 m NaOH. also record this calculation on your report sheet.

asked by janvi on October 22, 2009
54. ## math

I have a plant that measures 4 inches tall. I measured it two weeks later and it was 6 times its original height. Write an equation using the variable, p, to determine the height of the plant two weeks later.

asked by kathy on January 6, 2016
55. ## chemistry

SO2 and O2 are placed in a 2.00 L container at a temperature of 786 °C and a pressure of 6.99 atm. During the reaction, SO3 forms and the pressure falls to 1.89 atm. Determine how many moles of SO3 are generated.

asked by leo on September 12, 2017
56. ## physics

A 1.3 kg mass accelerates at 8.2 m/s2 in a direction 23 degrees north of east. One of the two forces acting on the mass has a magnitude of 7.85 N and is directed north.Determine the magnitude of the second force. Im in need of serious help I only have one

asked by Joe Rogers on September 29, 2012
57. ## geometry

A 12-foot ladder that is leaning against a wall makes a angle with the level ground. What equation can be used to determine the height in feet (y) from the ground to where the ladder touches the wall?

asked by why on March 9, 2017
58. ## physics

A cart released from rest at the top of a track 90. cm long takes 4.00 seconds to reach the bottom. determine the velocity as the cart reaches the bottom of the track

asked by Anonymous on October 5, 2014
59. ## Chemistry Check

Determine the missing values of deltaH in the diagram shown below ^ | ^ N2O3(g) + 1/2 O2(g) (Enthalpy)| | ^ | | deltaH= +16.02 | | | | | | 2 NO2(g) | | | ^ | |deltaH=? | | | | | | deltaH=?| | | | | | | | N2(g)+202(g) | Answer: Delta H for the right= 66.36

asked by Nancy on October 18, 2014
60. ## CHM

Assuming the density of acetic acid solution is 1.0 g/mL, determine the volume of the acetic acid solution necessary to neutralize 25.0 mL of 0.10 M NaOH. Record this calculation on your report sheet

asked by JACK on January 25, 2011
61. ## chemistry

A flask contains 0.260 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask. Express your answer numerically in molecules.

asked by diana on August 16, 2016
62. ## Math

The circumference of earth is about 40,030.02km. The formula for circumference is c=2(3.14)r.jennifer determines the radius of earth is about 12,700km.use estimation to determine if Jennifer measurement is reasonable.

asked by Kari on September 5, 2016
63. ## Linear Programming

Tab 1: Linear Program: 50 points Consider the Linear Program: Max 2A + 3B s.t. 1A + 2B

asked by Patrick on January 20, 2011
64. ## math

samuel is painting the toy chest shown in the diagram (including the bottom). He needs to know the surface area to determine how much paint to buy.Which of the following is the surface area of the chest.

asked by HELP PLZ on March 15, 2017
65. ## Microeconomics

LTC=2q-2q^2+q^3 Demand p=100-q Determine the long run equilibrium Price Representative firm's output(q) Industry output q and number of firm's in the industry

asked by Daniel on November 15, 2016
66. ## chemistry

Determine the of mole of water molecules in one mole of a sample of an iron containing (nh4)2so4. FeSO4. nH2O. titrate a solution of the iron containg (solution Y)

asked by fiona on December 3, 2011
67. ## chemistry

The reaction 2NOCl(g) ¨ 2NO(g) + Cl2 (g) has an activation energy of 100.0 kJ/mol and a rate constant at 350.0 K of 8.5 x 10-6 mol-1 L s-1. Determine the rate constant at 400 K.

asked by G-Unit 32 on February 9, 2010
68. ## Physics -URGENT-

A 2 kg mass accelerates at 5.7 m/s 2 in a direction 19◦ north of east. One of the two forces acting on the mass has a magnitude of 17.1 N and is directed north. Determine the magnitude of the second force. Answer in units of N

asked by Jenna on October 13, 2013
69. ## Physics

Michael Jordan was said to have a hang time of 3 seconds. Use kinematic equations to determine the height to which MJ could leap if he had a hang time of 3 seconds. Hint: You are solving for distance!

asked by Lilly on November 2, 2010
70. ## Physics

A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.

asked by Megan on February 7, 2011
71. ## CHEMISTRY

The standard electrode potential for the reduction of Eu3+(aq) to Eu2+(aq) is −0.43 V. determine which of the following is capable of reducing Eu3+(aq) to Eu2+(aq) under standard-state conditions? (a) Sn2+(aq) (b) ln(s) (c) HCN(aq) (d) La(s)

asked by help on November 30, 2012
72. ## Mathematics

Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

asked by Camille on July 9, 2016
73. ## Pre Calculus

Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

asked by Jessica Maths on July 10, 2016
74. ## physics

a bullet leaves the barrel of a gun with the speed of 320m/s. the barrel is 80.0cm long. Assuming uniform acceleration, determine a)the time it took b)the acceleration of the bullet

asked by Cindy on October 31, 2011
75. ## chemistry

In the gaseous phase PCl5 dissociates according to the following equilibrium: PCl5⇌PCl3+Cl2 and Kc=0.8 at 613K .Determine the equilibrium composition when 0.12 moles/L of the three compounds are mixed at 613K.

asked by Anonymous on July 10, 2016
76. ## Physics

A projectile is shot horizontally at 34.5m/s from the edge of a 55.0metre building a) Determine the height of the projectile from the ground after 2.0 seconds. b) Calculate the velocity of the projectile when the projectile reaches the ground.

asked by Ara on January 18, 2018
77. ## Physics

A 1 m diameter wagon wheel consists of a thin rim having a mass of 6 kg and six spokes each having a mass of 1.5 kg. Determine the moment of inertia of the wagon wheel for rotation about its axis.

78. ## Chemistry

3.05 g of hydrated copper sulfate produce 1.94 g of anhydrous salt. Assuming complete removal of water of crystallisation, determine the formula of hydrated copper sulfate.

asked by Melissa on March 11, 2015
79. ## algebra

a) Find a polynomial R(p) that represents the total revenue when the shirts are p dollars each. b) Find R(5), R(10), and R(20). c) Use the bar graph to determine the price that will give the maximum total revenue.

asked by Anonymous on November 11, 2010
80. ## Physics-Mechaincs

A 1.3 kg mass accelerates at 5.8 m/s2 in a direction 36◦ north of east. One of the two forces acting on the mass has a magnitude of 17.3 N and is directed north. Determine the magnitude of the second force. Answer in units of N.

asked by Genevieve on September 19, 2010
81. ## Chem 1010

Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer.

asked by Sirena on April 10, 2012
82. ## statistics

A certain number of articles manufactured in a batch were classified into three categories according to some particular characteristic, being less than 50, between 50 and 60 and greater than 60. If this characteristic is known to be normally distributed,

asked by Jeshani on August 21, 2014
83. ## physics

Piston circled 1 in the figure below has a diameter of 0.28 in.; Piston circled 2 has a diameter of 1.6 in. In the absence of friction, determine the force vector F necessary to support the 500-lb weight. in lb i got 1.53 lb but it is incorrect

asked by anna on April 10, 2016
84. ## physics

A hand exerciser utilizes a coiled spring. A force of 82.0 N is required to compress the string by 0.0191 m. Determine the force needed to compress the spring by 0.0520 m.

asked by Lola on July 4, 2015
85. ## math

At a park, 96 brown-bag lunches were given out in thirty minutes. If 29 bags remain and x represents the starting number of brown-bag lunches, which equation could be used to determine the value of x?

asked by Anonymous on February 28, 2013
86. ## Chemistry

Given the following equilibrium constants are given at 377°C, 1/2 N2(g) + 1/2 O2(g) NO(g) K1 = 110−17 1/2 N2(g) + O2(g) NO2(g) K2 = 110−11 N2(g) + 3/2 O2(g) N2O3(g) K3 = 210−33 N2(g) + 2 O2(g) N2O4(g) K4 = 410−17 determine the values for the

asked by Margaret on February 13, 2013
87. ## math

a person who is 1.9m tall has a shadow that is 1.5m long. at the same time a flagpole has a shadow that is 8m long. determine the height of the flagpole to the nearest tenth of a metre. draw a diagram

asked by Anonymous on August 9, 2011
88. ## Math

In the triangle ABC given, side AB is twice as long as side AC. We have: m

asked by L on June 13, 2016
89. ## multivariable calculus

Consider the surface given by the equation: 2x2 - 3z2 - 4x -4y - 12z + 2 = 0 (a) Write in standard form ) (b) Determine and classify the traces with planes parallel to the xy-, xz- and yz- planes. (c) Hence classify the surface.

asked by cheuk on March 26, 2013
90. ## physics

The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 27.4 cm from the origin O. For each of the situations in the drawing, determine the magnitude of the net electric field at the

asked by fyf on May 18, 2016
91. ## Dynamics

The power developed by a man in riding up a 6 percent grade at a constant speed is 200 w. The man and his bicycle have a combined mass of 80 kg. Determine the speed of riding

asked by Dhilsath on July 31, 2012
92. ## Chemistry

A bag contains a mixture of copper and lead BBs. The average density of the BBs is 9.80 {\rm g/cm^3}. Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB.

asked by Anonymous on June 5, 2011
93. ## Chemisty

We recently did the baking soda vinegar reaction to determine how much acetic acid was in 15 mL of vinegar. What is the minimum amount of baking soda that you could do to inure an accurate result? Thank you so much for your help!

asked by Anonymous on February 6, 2014
94. ## physics

A car is driven east for a distance of 88 km, then north for 28 km, then in a direction 30 degrees east of north for 25 km. Determine the magnitude of the displacement (in kilometers) of the car from its starting point. thanks!

asked by lisa on June 14, 2011
95. ## physics

an object moving on the x axis with a constant acceleration increases its x coordinate by 108 m in a time of 9.5 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion?

asked by chris on August 10, 2014
96. ## Physics

A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.

asked by Megan on February 7, 2011
97. ## Chem 1010

Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer.

asked by Sirena on April 10, 2012
98. ## Physics

A water bed has dimensions of 1.83 m 2.17 m 0.247 m. The floor of the bedroom will tolerate an additional weight of no more than 6660 N. Find the weight of the water in the bed and determine whether it should be purchased.

asked by joe on November 1, 2007
99. ## Science

The temperature of a silver bar rises by 10. 0°c when it absorbs 1230 jof energy by heat. The made of the bar is 525 g. Determine the specific heat of silver.

asked by Kathryn Moore on May 15, 2016
100. ## algebra

find the following for the function f(x)= (x+5)^2(x-1)^2 a) find the x and y intercepts for the polynomial function f b) determine whether the graph of f crosses or touches the x axis at each x intercept C) put all information together to obtain the graph

asked by alli on August 18, 2012