1. physics

    1- An elevator, when fully loaded, has a mass of 5500 kg. The elevator needs to accelerate anywhere from 2.7 m/s^2 [D] to 2.7 m/s^2 [U]. What is the maximum tension force that the elevator cable will need to support during normal use? can we use fnet

    asked by Anonymous on October 26, 2014
  2. statistics

    For a normal distribution with a mean of 140 and a standard deviation of 55 find each value requested. a. What is the minimum score needed to be in the bottom 10% of the distribution? b. What scores form the boundaries for the middle 75% of the

    asked by tammy on April 29, 2012
  3. statistics

    The lifetime of a 2- volt non- rechargeable battery in constant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z-score for batteries with lifetimes of 600 hours?

    asked by Gee on September 6, 2012
  4. Physics

    A space station is designed so that people can walk on the inside of the outer wall and feel their normal weight. The station is to be 750 m in diameter. What is the period of the station's rotation?

    asked by Juan on February 26, 2018
  5. Math

    Use the normal distribution of weights of adult men, which has a mean of 170 pounds and a standard deviation of 7.5 pounds. Use the z-score chart to find the percentage of heights less than 155 pounds.

    asked by Edwin on November 17, 2016
  6. Physics

    A 5 kg block is placed on top of a 10 kg block as shown above. A horizontal force of 45 N is applied to the 10 kg block, while the 5 kg block is tied to the wall. The coefficient of kinetic friction between the moving surfaces is 0.20. Determine (a) the

    asked by Chrxeyshthoufov on February 23, 2014
  7. Life sciences

    The question says. You are on the grade10 dance committe. Your job is to draw up a budget for the grade10 dance which is to be held in your school hall. There are 110 grade10 learners,and each will pay R120 to attend the function .draw up a realistic

    asked by Success on August 11, 2014
  8. Physics

    An airliner lands with a speed of 48.5 m/s. Each wheel of the plane has a radius of 1.25 m and a moment of inertia of 110 kg · m2. At touchdown, the wheels begin to spin under the action of friction. Each wheel supports a weight of 1.40 ✕ 104 N, and the

    asked by Elsie on December 17, 2014
  9. walden

    Assume that you are considering a 7-night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering

    asked by trista on March 9, 2015
  10. Microeconomics

    Assume that you are considering a 7-night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering

    asked by Anonymous on September 7, 2015
  11. HELP!!!! math

    Find the measures of the interior angles of the pentagon below. A- 90 degrees B- x + 40 degrees C- x degrees D- x + 40 degrees E- x+ 50 degrees

    asked by Anonymous on April 4, 2011
  12. Maths - trigonometry

    if sec theta*sin(36° + theta )=0 , find the value of theta so that theta and 36°+theta are acute angles

    asked by Safi on April 16, 2017
  13. aritmetics

    how do you figure two thirds of 36 is 24? please tell me! I know its simple This is the easy way to figure it. Divide 36 into 3 equal parts. The three is the bottom number. To SEE this , use dried peas or blocks. Now, put two of the parts together... The 2

    asked by chrissy on July 10, 2007
  14. math

    Calculate the answers |-3-|-7-7|| Does |n+m| = |n|+|m| for all integers na and m? If so, give some examples. If not, give a counterexample. The Weathertalk Analysis Problem. Read the following story about the TV weatherperson and identify as many places as

    asked by bubba on February 21, 2011
  15. Physics

    Two objects x and y with a total mass od 2.5 x 10^3 kg are joined together in outer space and are at rest. An astronaut in a space shuttle presses a button that is explosive and separates the two objects from each other. X moves to the right with a

    asked by Xanther on August 8, 2011
  16. PHYSICS

    A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, the total force exerted on the driver has magnitude 115 N. What are the magnitude and direction of the total vector force exerted on the driver if the

    asked by Laila on January 18, 2010
  17. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max on February 15, 2012
  18. Angular Acceleration

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by MaxX on February 15, 2012
  19. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max on February 15, 2012
  20. Physics

    When a horizontal force of 350 is applied to a 86.0 box, the box slides on a level floor, opposed by a force of kinetic friction of 130 .What is the magnitude of the acceleration of the box?

    asked by EL on May 25, 2011
  21. AED

    Select one strategy from your list. Cultural Diversity Then How can this strategy be applied to both types of learners you identified? Can this single strategy be effective for all learners? Why or why not? the other one i chose was lang. but they are not

    asked by Dawn on April 19, 2008
  22. physics

    9) A force in the +x-direction with magnitude F(x) = 18.0 N – (0.530 N/m) x is applied to a 6.00-kg box that is sitting on a frictionless surface. F(x) is the only horizontal force on the box. If the box is initially at rest at x = 0, what is its speed

    asked by papy on September 20, 2014
  23. physics

    A 3.40 kg block is pushed along the ceiling with an constant applied force of F = 82.0 N that acts at an angle θ = 50° with the horizontal. The block accelerates to the right at 5.80 m/s2. Determine the coefficient of kinetic friction between the block

    asked by Elli Johnson on January 14, 2013
  24. stats

    Three scholarships are available for needy students. Their values are $2,00, $2,400 and $3,000 12 students have applied and no student may receive more than one scholarship. Assuming all 12 students are in need of funds, how many different ways could the

    asked by Maria B on March 16, 2011
  25. Physics

    If the output piston in a hydraulic pump exerts a greater force than one applied to the input poston, is the pressure at the outpit piston also larger than at the input piston? Im really not even sure how to go about this question.

    asked by Abida on January 17, 2011
  26. Physics

    A perpendicular force of 600n acts on a circular surface of radius 1.4 m. The surface breaks if additional force of 16N is applied on it . What is the maximum pressure that the surface can withstand with.

    asked by Achintya Sharma on November 29, 2014
  27. algebra

    the length of a coil l (in centimeters) is a function of the weight w (in kilograms) applied to the coil. For a particular coil, the function is represented by the equation l=54-3w. Explain the meaning of the numbers 54 and -3 within the context of this

    asked by Latoyia on June 11, 2016
  28. physics

    In the outer space, a constant force is applied to a 32.5 kg probe initially at rest. The probe moves a distance of 100 m in 10 s. (a) What acceleration does this force produce? (b) What is the magnitude of the force?

    asked by chyenne on January 13, 2016
  29. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 24, 2008
  30. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 23, 2008
  31. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 23, 2008
  32. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 23, 2008
  33. stats

    8-A bakery stated that the average number of breads sold daily is 3000. An employee thinks that the actual value might differ from this and wants to test this statement. The correct hypotheses are: (1) H0 : ¦Ì = 3000 H1 : ¦Ì not= 3000 (2) H0 : ¦Ì >

    asked by Judy and group on April 1, 2010
  34. Math

    A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,

    asked by confused on September 27, 2011
  35. Math

    A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,

    asked by confused on September 27, 2011
  36. math

    PLEASE HELP ME ANSWER THIS QUESTION. THIS QUESTION IS HARD FOR ME AND i DON'T GET IT. please show working when answering. Just in case your wondering this is a practice question. Use the following pattern to answer the question Design (n) Number of

    asked by Rakshana on September 4, 2011
  37. physics

    1)An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of spring is? 2)A force of 100N stretches an elastic spring to a total of 20cm. If an additional force of

    asked by Anne on April 9, 2013
  38. Math

    Find the total surface area if q solid cube of volume 98 cm cube. An open water tank with length 20 cm and width 15 cm holds 4.8 liters of water. Calculate the height of the water level in tank and the total sitface area of the cuboid in contact with

    asked by Julie charmster on February 20, 2011
  39. Physics

    A force is applied to a door at an angle of 56.8° and 0.34 m from the hinge. a) What force produces a torque with a magnitude of 2.18 N·m? b) How large is the maximum torque this force can exert?

    asked by Mike on March 13, 2013
  40. physics

    when excerising using a spring you pull the spring 0.30m with a force of 365N. What distance will the spring stretch from its zero position if you applied a force of 400N?

    asked by Tabitha on October 15, 2007
  41. Physics

    A 15 kg sled experiences an applied force of 5.5 N [north] and an opposing frictional force of 2.5 N [south]. If the sled starts from rest, what will be the velocity of the sled after 4.0 s?

    asked by Matthew on October 27, 2014
  42. Science

    A horizontal force of 24 N is being applied to a box on a level surface. The box is accelerating at the rate of2280889against a frictional force of 14 N. What is the mass of the box?

    asked by Jabrika on March 16, 2015
  43. physics

    two forces f1 and f2 are acting at a point such that the angles between them are (1) 30 degree (2) 60 degree and (3) 45 degree show that resultant forces will be

    asked by cat on March 23, 2013
  44. math

    if the measures of the angles of a triangle are represented by 2x, 3x-15, and 7x-15, the triangle is 1)an isosceles triangle 2)a right triangle 3)an acute triangle 4)an equiangular triangle

    asked by derek on May 30, 2008
  45. geometry problems

    two angles are complementary. the measure of one angle is 1/5 of the measure of its compliment.find the measure of the smaller angle

    asked by cronica fay on December 2, 2015
  46. physics

    two forces f1 and f2 are acting at a point such that the angles between them are (1) 30 degree (2) 60 degree and (3) 45 degree show that resultant forces will be

    asked by cat on March 23, 2013
  47. Geometry

    One pattern on my worksheet has angles. The first is 90 degrees, 135 degrees, then 157.5 degrees. I don't really see any pattern. Could anyone help me with this? Thank you so much. :)

    asked by Celine on September 10, 2009
  48. Algebra

    I have a pair of supplementary angles, the measure of one angle is 8 times the measure of the other. What is the measure of the larger angle?

    asked by samay on February 6, 2018
  49. math

    if the measures of the angles of a triangle are represented by 2x, 3x-15, and 7x+15, the triangle is 1)isosceles triangle 2)right triangle 3)acute triangle 4)equiangular triangle

    asked by derek on May 31, 2008
  50. geometry

    Is it always true, sometimes true, or never true that the centroid is outside its associated triangle? Is it always true, sometimes true, or never true that two complementary angles have a common vertex?

    asked by lisa on May 31, 2010
  51. math

    Which statements about a rhombus are always true? Its diagonals are congruent. All angles are congruent. All sides are congruent. Its diagonals are Û to each other.

    asked by kyle on July 17, 2014
  52. GEOMETRY

    What is the value of p? A right triangle with angles measuring 45, 45 and 90 and a leg measuring P and hypotenuse measuring 44 22 22 sqrt 2 44 44 sqrt 3 It always helps to know how...thanks

    asked by Anonymous on February 18, 2015
  53. Math... PLEASE HELP!!

    If one angle in a pair of vertical angles measures 42 degrees and the other measures 2n-4 degrees, which is the value of n? I got 23 degrees but I am not sure if it is correct. Please help me...

    asked by Nicole on November 12, 2013
  54. Economics

    Consider a single price monopoly that faces a market demand curve for a good is given by the equation 𝑃=100−.1𝑄 and the total cost function is given as 𝑇𝐶=1000+20𝑄+.4𝑄2. a. What is the total fixed cost for this monopoly? P/TC

    asked by Steven on August 23, 2016
  55. math-algebra

    A launched rocket has an altitude, in meters, given by the polynomial h = vt -4.9t^2, where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the rocket is airborne. If a

    asked by Michelle on October 9, 2010
  56. chemistry

    A student generates H2(g) over water using the reaction between zinc and hydrochloric acid Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g) Data: Mass of vial and zinc 15.5082 mass of vial 15.3972 mass of zinc 0.111 final burette reading 45.30mL barometric pressure:

    asked by Yuli on November 24, 2011
  57. AP CHEMISTRY

    An experiment was carried out to determine the value of the equilibrium constant Kc for the reaction. Total moles of Ag+ present = 3.6 x 10-3 moles Total moles of NH3 present = 6.9 x 10-3 moles Measured concentration of Ag(NH3)2+ at equilibrium= 3.4* 10-2

    asked by Jamba on March 12, 2012
  58. physical

    Problem 1 A goalkeeper kicks a ball of mass 400 g in the air, and reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. During its flight, the ball experiences a horizontal friction

    asked by sumi on December 8, 2011
  59. physical

    Problem 1 A goalkeeper kicks a ball of mass 400 g in the air, and reaches a position of height 15.9 m above the ground corresponding to a horizontal distance 19.7 m from its initial position. During its flight, the ball experiences a horizontal friction

    asked by sumi on December 8, 2011
  60. Chemistry

    three separate questions 1. An empty graduated cylinder weighs 82.450 g. When filled to 50.0 mL, with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid? 2. It is valuable to know that 1 milliliter (mL) equals 1 cubic

    asked by Lisa on February 12, 2014
  61. Social Impact of Technology

    VEhrlich’s dire projections differed from those of Malthus in that he applied the principle of geometric progression to: A. vital resources such as oil, copper, and top soils. B. significant climate change variables. C. increasing species die-off. D. the

    asked by Angela on December 22, 2016
  62. maths

    1 at what time betweeen 7o'clock and 8o'clock will the hands of a watch be at right angles (for the first time) 2 the floor of a room is in the form of a rectangle 'x'cm long and 'y'cm broad but with one corner rounded off by a quadrant of a circle of

    asked by raffin on May 21, 2012
  63. Trigonometry

    Two points, A and D, are in a horizontal line with the foot of a tower, CB, and on opposite sides. The distance between A and D is 535.4 feet while the angles of elevation of the top B are 12 degrees 46 minutes from A and 18 degrees 38 minutes from D. Let

    asked by Alivia on April 26, 2010
  64. physics 8b

    A piece of wire with mass per unit length 88 g/m runs horizontally at right angles to a horizontal magnetic field. A 6.5A current in the wire results in its being suspended against gravity. What is the magnetic field strength? Express your answer using two

    asked by help on September 16, 2011
  65. Math

    A hot air balloon rising vertically is tracked by an observer located 4 miles from the life off point. At a certain moment, the angles between the observers line of sight and the horizontal is Pi/4 and it is changing at a rate of 0.1. How fast is the

    asked by Victoria on December 5, 2016
  66. Physics

    A velodrome is built for use in the Olympics. The radius of curvature of the surface is 19.6 m. At what angle should the surface be banked for cyclists moving at 11.5 m/s? (Choose an angle so that no frictional force is needed to keep the cyclists in their

    asked by Jess O. on June 16, 2012
  67. math

    Tony has a piece of wire 36 inches long.He bent it into a quadrilateral with sides of equal length and angles of equal measure. (Part A) Classify the quadrilateral.Give all the names that fit. (Part B) Justify your answer with evidence.

    asked by Johnny on September 21, 2011
  68. Trig

    A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 3 mi apart, to be angle x = 31° and angle y = 49°, as shown in the figure. (Round your answers to two decimal places.) Find the distance of the plane from

    asked by Dan on March 1, 2012
  69. math

    Tony has a piece of wire 36 inches long. He bent it into a quadrilateral with sides of equal length and angles of equal measure. (Part A) Classify the quadrilateral. Give all the names that fit. (Part B) Justify your answer with evidence.

    asked by Johnny on September 23, 2011
  70. Calculus

    The CIA published data about foreign countries on its web page. In particular they show total population as well as population growth. If a student is looking at Russia, they will see that the total population of Russia is declining. When they look at the

    asked by Jamie on June 18, 2014
  71. Chemistry

    Question: Antimony (V) chloride, SbCl5, dissociates on heating to SbCl5(g)goes to SbCl3(g)+ Cl2(g). A closed 3.50 L vessel initially contains 0.0125 mol SbCl5. what is the total pressure at 248 degree's C when equilibrium is achieved? The value of Kc at

    asked by eliz on February 26, 2009
  72. math

    a recent survey was conducted on 6 grade students. Of those surveyed, 180 of the students prefered basketball over football. if the 180 students was 5/8 of the total students surveyed, how many total students were surveyed? write an equation to model this

    asked by kenzcow on January 16, 2015
  73. Chem

    A solution is made by mixing 50.0 g C3H6O and 50.0 g of CH3OH. What is the vapor pressure of this solution at 25 degrees C? What is the composition of the vapor expressed as a mole fraction? Assume ideal solution and gas behavior. (At 25 degrees C the

    asked by Christopher on March 24, 2007
  74. Econ MC

    I am having trouble solving this MC. Marylyn and Rebecca sell lemonade on the corner. Each glass costs them $0.05 to make. At the end of the day, they have sold 50 glasses and received a total producer surplus of $12.50. That would mean that Marylyn and

    asked by Econ on April 17, 2007
  75. Math

    A diagonal of a parallelogram is 10 inches long and makes angles of 25 degrees and 43 degrees with the side. how long is the longest side?

    asked by Jacob on April 21, 2017
  76. MATHS 2

    If x+y=45°, prove that {(cotx+1)(coty+1)}/{cotx×coty}=2 Please help me in this TRIGONOMETRY problem. From the topic - TRIGONOMETRY Ratios of compound angles

    asked by A GOODSTUDENT on October 26, 2016
  77. Geometry

    R, S, and T are the vertices of one triangle. E, F, and D are the vertices of another triangle. m

    asked by Steve on November 9, 2015
  78. math

    Two angle of a quadrilateral is 90 degree and 100 degree. the remaining two angles are equal. calculate the size of each remaining angle.

    asked by Rofhiwa on October 24, 2016
  79. geometry

    Suppose the bisector of an angle divides the angle into 2 angles, each of which has a measure of 15 degrees less than the complement of the angle. What is the measure of the original angle?

    asked by Anonymous on September 15, 2011
  80. Physics

    Does displacement always have to include angles and direction? For example a man travels 3 m (N) and 4m (E). Can you just put 5m for displacement or do you have to put the angle and direction? Explain why

    asked by Anonymous on May 12, 2015
  81. Maths

    Two polygons have te number of their sides in the ratio 1:3.The sums of their interior angles are in the ratio of 4;1. Find the number of sides of each polygon.

    asked by Erin on February 7, 2011
  82. algebra

    Two angles are complemtary. The large angle is 1 less than 6 times the smaller angle. which system could be used to determine the larger angle X and the smaller angle Y?

    asked by chris on May 26, 2011
  83. Math

    A triangle has side lengths of 15 inches and 30 inches. It also has angles that measure 45° and 20°. Which of the following identifies the possible third side length and third angle of the triangle?

    asked by Anonymous on February 17, 2016
  84. Physics

    Does displacement always have to include angles and direction? For example a man travels 3 m (N) and 4m (E). Can you just put 5m for displacement or do you have to put the angle and direction? Explain why.

    asked by Anonymous on May 12, 2015
  85. math

    Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.

    asked by dan on March 17, 2010
  86. math

    Tom drew a triangle with angle measures of 130°, 24°, and 26°. How would you classify Tom’s triangle based on the measures of the angles?

    asked by Anonymous on May 24, 2010
  87. Geometry

    Use any tools to construct each of the following, if possible: a. A right triangle with one acute angle measuring 75° and a leg of 5 cm on a side of the 75° angle b. A triangle with angles measuring 30°, 60°, and 90°

    asked by Adalgisa on August 1, 2011
  88. math

    Two forces of 7 lb. and 14 lb. act on a body at right angles to each other. Find their resultant. Find the angle their resultant force makes with the force of 14 lb.

    asked by ruca on March 17, 2010
  89. geometry

    The following are angles in a convex quadrilateral: Angle A = 75.3 degrees Angle B = 114.8 degree Angle C = 65.9 degrees What is the measure of the missing angle?

    asked by ari on June 4, 2012
  90. Geometry

    Vw is bisected by xy and xz at x creating 3 angles if m< vxy= 6x-14 and m

    asked by John on October 16, 2011
  91. science

    In the following diagram, the greem ball changes direction after colliding with the red ball because the red ball has more momentum. True

    asked by thenameisjordan on March 10, 2014
  92. science

    according to ohms law what is the resistance of a lightbulb if that applied voltage is 21.0 V and the current is 3.0 amps? 24 ohms 7.0 ohms** 18 ohms 3.0 ohms

    asked by cat on November 1, 2016
  93. algebra

    To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one

    asked by Jack on April 8, 2008
  94. algebra

    What in the world does this mean? To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write

    asked by Laura on September 14, 2008
  95. math

    Consider a student loan of $17,500 at a fixed APR of 9% for 25 years. Calculate the monthly payment, determine the total amount paid over the term of the loan, and of the total amount paid, what percentage is paid towards the principal, and what percentage

    asked by suresh on March 30, 2016
  96. math

    Please check my answers and make sure there right. Joe had a total of 8 slices of pizza he gave jack 3 slices what is the ratio of total slices to slices eaten? A. 8 to 3****** B. 3 to 8 C. 4 to 9 D. 16 to 6 Read the question above what is the fraction of

    asked by spongebob squrepants on February 8, 2017
  97. algebra

    There were a total of 2000 tickets sold at a recent sporting event on Saturday. The cost of an adult ticket was $4.00 and a child's ticket was $2.00. The total amount of money collected was $6400.00. How many adult and child tickets were sold at the game?

    asked by natalie on August 18, 2014
  98. Math

    Daniel drives 30 mph to the toy store and 45 mph back home, taking the same route both ways. If the total trip took two hours, how many total miles does he drive on the round-trip from home to the store and back? Can you please explain how to do it?

    asked by Gina on July 14, 2016
  99. physics

    Hockey Puck A 110 g hockey puck sent sliding over ice is stopped in 13 m by the frictional force on it from the ice. (a) If its initial speed is 5.0 m/s, what is the magnitude of the frictional force? 1 N (b) What is the coefficient of friction between the

    asked by zack on December 11, 2011
  100. algebra

    A cup of coffee is heated to 180°F and placed in a room that maintains a temperature of 65°F. The temperature of the coffee after t minutes is given by T(t) = 65 + 115e^−0.042t.(a) Find the temperature, to the nearest degree, of the coffee 10 minutes

    asked by Barb on November 17, 2014