1. Physics

    Am i correct? Which of the following is a reasonable power rating on an electric oven? 220 V 8.0 A

    asked by Me and I on May 23, 2014
  2. science

    an electric oven of 2kW power heating is operated in a domestic circuit that has a current rating 5A. If the supply voltage is 220V. What result do you expect? Explain

    asked by akanshs on June 23, 2013
  3. Multiple Choice

    Physics 2. Which of the following is equivalent to one ampere? (Points : 1) 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s Question 3.3. A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point?

    asked by Steven on May 8, 2014
  4. Physical Science

    The current in a toaster oven is 15 A when plugged into an electrical outlet that is 110 V. How much electric power is used by the toaster oven? Formula: P = IV

    asked by Anonymous on March 19, 2014
  5. Physics

    The temperature in an electric oven is 160°C. The temperature at the outer surface in the kitchen is 50°C. The oven ( surface area = 1.6 m2) is insulated with material that has a thickness of 0.02 m and a thermal conductivity of 0.045 J/s.m.C°. (a) How

    asked by Maryo on March 24, 2010
  6. physics

    please help The power rating of an electric motor which draws a current of 5 amperes from a 240-volt line is? a. 12.0 kW b. 1.2 kW c. 48.0 kW d. 4.8 kW

    asked by pub on March 24, 2016
  7. Algebra

    Is this correct? You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high temperature whn it is not baking, but you also do not want to waste a lot of time waiting for the oven to reach the desired baking

    asked by A.W. on February 1, 2009
  8. physics

    a 6.0 kW electric oven is connected to a fuse box by a cable of resistance 0.25 ohms. when the cooker is switched on at full power, a current of 26 A passes through it. Calculate the potential difference between the two ends of the cable and the power

    asked by eleena on April 19, 2014
  9. Physics

    The temperature in an electric oven is 165°C. The temperature at the outer surface in the kitchen is 55°C. The oven (surface area = 1.6 m2) is insulated with material that has a thickness of 0.023 m and a thermal conductivity of 0.045 J/(sm°C). a) How

    asked by papito Urgent help needed on April 18, 2007
  10. Calculus (Derivatives)

    A tray of lasagna comes out of the oven at 200°F and is placed on a table where the surrounding room temperature is 70°F. The temperature T (in °F) of the lasagna is given by the function T(t) = e^(4.86753 - t) + 70, where t is time (in hours)after

    asked by Mishaka on October 29, 2011
  11. maths

    An electric heater with a p.d of 240V connected across its terminals has a total resistance of 950Ω . Find the power rating of the heater?

    asked by poppy on April 26, 2019
  12. statistics

    Healthy breakfast contains the rating of 77 cereals and the number of grams of sugar contained in each serving. A simple linear regression model considering "sugar" as the explanatory variable and "rating" as the response variable produced the following

    asked by Gee on September 19, 2012
  13. algerbra1

    2. You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high temperature when you are not baking, but you also do not want to waste a lot of time waiting for the oven to reach the desired baking temperature.

    asked by Connie on November 16, 2011
  14. Finance

    If a financial institution is backed by any government program or indirect guarantee, any bonds purchased must be "rated" at investment grade or better. The rating agency is a third party with no connections with the bond issuer or the bond investor. Which

    asked by Rajini on April 11, 2007
  15. Physics

    An electric kettle operates at 110V. What is the resistance of the kettle if the power is 1.5kW? 8.1 Ω 1.4 Ω 81 Ω 14 Ω Both A and B seem reasonable, and I'm leaning more towards B. Help..?

    asked by Herp on October 21, 2012
  16. Physics

    am i correct? An electric oven has a resistance of 10.0Ω and a voltage of 220 V. How much current does it draw? A. 2.2 A B. 22 A

    asked by Me and I on June 3, 2014
  17. Physics

    A 120-V motor has mechanical power output of 2.00 hp. It is 82.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor (b) Find the energy delivered to the motor by electrical

    asked by Jessi on October 18, 2009
  18. chemistry

    A certain microwave oven delivers 800. watts (J/s) of power to a coffee cup containing 45.0 g of water at 25.0°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to make the water boil?

    asked by Anonymous on October 6, 2013
  19. physics

    On its highest power setting, a microwave oven increases the temperature of 0.350 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti, given its specific heat is 0.900 kcal/kg·°C? W (b) Find the average

    asked by taryn on April 7, 2013
  20. physics

    On its highest power setting, a microwave oven increases the temperature of 0.350 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti, given its specific heat is 0.900 kcal/kg·°C? W (b) Find the average

    asked by taryn on April 5, 2013
  21. physics

    Which of these are correct for an electric field? A) It's a vector quantity, and can be cancelled.B) Three of three are correct.C) It stores electric energy.D) Two of three are correct.E) It's the altered space surrounding electric charge.

    asked by Kristie on April 10, 2012
  22. Applied Physics

    Which is a vector quantity? electric energy electric charge electric power electric field intensity

    asked by Scott on May 29, 2011
  23. Science/Astronomy

    Large geomagnetic storms can cause surges of electric current here on Earth. What is the MOST LIKELY result of a large surge in electric current? F. power outages G.better TV reception H. cheaper electric power I. Local Group galaxy What is the answer???

    asked by Austin on April 13, 2010
  24. Geometry

    A performance was rated on a 3-point scale by an audience. A rating of 1 was given by 30%, a rating of 2 was given by 60%, and a rating of 1 was given by 10%. To the nearest tenth, what was the average of the ratings?

    asked by Callie on April 16, 2012
  25. AP Chemistry

    Microwave ovens emit microwave radiation that is absorbed by water as heat. Suppose that the wavelength of the radiation that is 12.5 cm in an oven that has a power rating of 900 watts. (1W = 1 J/s) a) How many moles of photons are released per minute b)

    asked by qwerty123 on November 16, 2010
  26. science

    The temperature of an electronic oven is 160 °C. The temperature at the outer surface of the oven in the kitchen is 50 °C. The oven (surface area = 1.6 m2) is insulated with material that has a thickness of 0.020 m and a thermal conductivity of 0.045

    asked by Nhlanhla on November 21, 2012
  27. physics

    An electric car accelerates for 7.2 s by drawing energy from its 430-V battery pack. During this time, 1700 C of charge pass through the battery pack. Find the minimum power rating of the car.

    asked by Mike on February 1, 2012
  28. Environmental Science

    I'm confused about how hybrid cars work...is gas used to accelerate, or is that electric power? So on highways, they just rely on electric power, right?

    asked by Heather on April 13, 2011
  29. Science

    Oregon and Washington generate far more hydro-electric power than most states. How does all this hydro-electric power help keep our electric bills low (half the cost of electricity in many states)?

    asked by Kaai97 on June 11, 2016
  30. physics

    On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by 45.0 °C in 120 s. The specific heat of spaghetti is 3760 J/kg °C and the microwaves are absorbed over a circular area 20.0 cm in diameter. What is the

    asked by carolyn on November 27, 2015
  31. physics

    A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut with no tension when the temperature in the oven is 250 °C. What is the the tension force in the wire when the oven cools to a

    asked by sand on February 23, 2012
  32. physics

    A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut with no tension when the temperature in the oven is 250 °C. What is the the tension force in the wire when the oven cools to a

    asked by sand on February 25, 2012
  33. physics

    A 90 cm length of steel wire with a diameter of 0.5 mm is stretched between the inside walls of an oven the wire is just taut with no tension when the temperature in the oven is 250 °C. What is the the tension force in the wire when the oven cools to a

    asked by sand on February 24, 2012
  34. science

    A microwave oven has a power requirement of 1264 W. A frozen dinner requires 5.5 min to heat on full power.

    asked by moe on February 9, 2012
  35. Physics

    A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power rating of the mover. I solved by using P= mgh/t and came up with 220.5 watts. Is this correct or am I suppose to use P=w/t and not use gravity in the equation?

    asked by Mack on December 5, 2011
  36. Physics

    A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power rating of the mover. I solved by using P= mgh/t and came up with 220.5 watts. Is this correct or am I suppose to use P=w/t and not use gravity in the equation?

    asked by Jim on December 5, 2011
  37. physics

    A pump lifts 200kg of water per hour a height of 6.0m . Part A What is the minimum necessary power output rating of the water pump in watts? Part B What is the minimum necessary power output rating of the water pump in horsepower?

    asked by HELP on October 24, 2013
  38. Physics

    A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 33° C from 181° C, its net radiant power decreases to 13.3 W. What was the net radiant power of the baking dish when it was first removed from the oven?

    asked by Sam on November 29, 2012
  39. Physics

    A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 33° C from 181° C, its net radiant power decreases to 13.3 W. What was the net radiant power of the baking dish when it was first removed from the oven?

    asked by Jim on December 6, 2012
  40. Microeconomics

    The Burning Belly Taco Stand is considering buying some new special ovens. Each oven will cost $1,000, and will last for 2 years before it wears out. The ovens will be used to make the Taco Stands famous "Burning Ring of Fire" tacos, and will generate a

    asked by Jessica on November 26, 2012
  41. College Physics II

    A typical gamma ray emitted from a nucleus during radioactive decay may have an energy of 736 keV. What is its wavelength? A microwave oven produces electromagnetic radiation at λ = 12.1 cm and produces a power of 778 W. Calculate the number of microwave

    asked by VJC on November 25, 2010
  42. Algebra

    The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7

    asked by Mary K on August 2, 2009
  43. physics....

    Suppose that the inside length of a microwave oven is 30 cm. If the length of a microwave oven is one half of the wavelength of microwaves used by the oven, find the frequency of the microwaves used in the oven. What is the equation that relates the three

    asked by kennedy on June 13, 2012
  44. Chemistry

    A particular microwave oven delivers 800 watts. (A watt is a unit of power, which is the joules of energy delivered, or used, per second.) If the oven uses microwave radiation of wavelength 12.2 cm, how many photons of this radiation are required to heat

    asked by Lance on June 14, 2011
  45. nsu

    A microwave oven has a power requirement of 1256 W. A frozen dinner requires 4.0 min to heat on full power. (a) How much electrical energy (in kWh) is used?

    asked by tyrone on February 9, 2013
  46. physics

    A microwave oven has a power requirement of 1250 W. A frozen dinner requires 6.5 min to heat on full power. How much electrical energy (in kWh) is used?

    asked by kim on September 18, 2016
  47. Math

    When they dial 3 and turn the oven on, it is like pushing the old button 3 times. That means if they start with one pizza in the oven, dial 3, and turn the oven on, they will get 27 pizzas. (33 = 27) Then if they dial -3 and turn the oven on it is like

    asked by Michelle on September 30, 2013
  48. Public Administration

    I believe I have the correct answer for this one, but just want to make sure. According to theories of French and Raven, Martin Luther King Jr exemplified which style of power in his leadership of the civil rights movement? A. Referent power B. Coercive

    asked by Keith on December 15, 2007
  49. Physics

    An electric current of 50 +/- 1 mA flows through an electric bulb filament that has a resistance of 10 +/- 2 ohm. Estimate the power dissipated by the filament and the associated error in the power.

    asked by Robert on January 26, 2012
  50. h.e

    name me 5 labour saving appliances you would find at home My robot vacumn cleaner. My dishwasher My washer and dryer. My remote control on the stereo, TV, car, My wordprocessor My email. My online banking. My shopping online. My microwave. My convection

    asked by Shauna on September 3, 2006
  51. algebra 1

    you are preheating an oven to 350 degrees Fahrenheit before you bake muffins. several minutes later, the oven thermometer reads 346 degrees Fahrenheit. the measured temperature has an absolute deviation of at most 2 degrees Fahrenheit. write and solve an

    asked by anonymous on December 4, 2013
  52. Microeconomics

    The Burning Belly Taco Stand is considering buying some new special ovens. Each oven will cost $1,000, and will last for 2 years before it wears out. The ovens will be used to make the Taco Stands famous "Burning Ring of Fire" tacos, and will generate a

    asked by Jessica on November 27, 2012
  53. physics

    The table shows the power ratings of four electrical appliances. Fan heater 2 kW Oven 3 kW Kettle 2 kW Microwave oven 0.75 kW The kettle is used for a total of 30 minutes a day. It has an efficiency of 0.9 What is the cost of the energy wasted by the

    asked by Aaron on March 1, 2011
  54. Dynamics

    It takes 16s to raise a 2800lb car and the supporting 650lb hydraulic car-lift platform to a ht of 6.5 ft. Knowing that the overall conversion efficiency from electric to mechanical power for the system is 82% determine a) the average power output

    asked by Amelia on February 22, 2013
  55. help

    If you know the power rating of an appliance and the voltage of the line it is attached to, you can calculate the current the appliance uses by A. multiplying the voltage by the power. B. subtracting the power from the voltage. C. dividing the voltage by

    asked by sid on October 20, 2015
  56. Chemistry

    A certain microwave oven delivers 633 watts (J/s) of power to a coffee cup containing 53.1 g of water at 25°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to make the water boil?

    asked by Sarah on January 23, 2012
  57. Math

    Hey, I just need my answer checked. Simplify: y to the 4th power times y to the 3rd power y to the 1st power y to the 7th power ** y to the 12th power y to the 43rd power correct? If not, please show work for me. thanks.

    asked by IAmNotARobotTrustMe1 on September 6, 2017
  58. Financial Management

    As the financial analyst for a corporation, you are evaluating various types of bonds. The firm is gathering research about bonds currently issued. Understanding how to properly value a vanilla bond (a plain bond) is essential for finance. 1) What makes

    asked by Angie on October 23, 2012
  59. Physics

    An electric power plant that would make use of the temperature gradient in the ocean has been proposed. The system is to operate between 20.0°C (surface water temperature) and 5.00°C (water temperature at a depth of about 1 km). The first question asks

    asked by Z32 on February 26, 2011
  60. math help pls pls pls

    Choose the correct simplification of the expression the quantity a to the 2nd power over b to the 3rd power all raised to the 4th power. A. a to the 6th power over b to the 7th power B. b^12 C. a^8b^15 D. the quantity a to the 8th power over b to the 12th

    asked by Oscar on March 21, 2016
  61. Physics

    An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W of power to the ice cube and that it takes 32,200 J to melt it. How long does it take for the ice cube to melt?

    asked by John on March 16, 2010
  62. Physics

    An ice cube is placed in a microwave oven. Suppose the oven delivers 105 W, of power to the ice cube and that it takes 32,200 J to melt it. how long does it take for the ice cube to melt?

    asked by Rosco on March 15, 2010
  63. Physics

    An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice cube and that it takes 30200 J to melt it. How long does it take for the ice cube to melt?

    asked by Anonymous on March 9, 2010
  64. Physics

    Jemima is sanding some floorboards with an electric sander which has a power rating of 360W. Jemima has the sander on for 45 minutes. The Sander is only 55% efficient. The electricity supplier charges 14.8p per kWh. What will be the cost of the 'wasted'

    asked by Need Help ASAP on May 15, 2013
  65. science.......

    An electric bulb is marked 220v60w. An ammeter in the circuit shows the bulb uses a current of 0.2727A. The bulb burns for an hour. Calculate the following: A. The electrical energy consumption B. The cost for the bulb to burn for one hour if the cost of

    asked by owamiii on April 7, 2015
  66. Algebra

    Oven temperature will increase by 45 degrees fahenheit per minute. when the oven is turned on the temperature is 70 degrees farenheit. what will the temp. of the oven be after 7 minutes? write an expression & explain answer. Help please!

    asked by Anonymous 2 on September 27, 2009
  67. science

    On a particular day, the following appliances are used for the times indicated: coffee maker, 40 min, and microwave oven, 23 min. Using the power requirements given in the table below, find how much it costs to use the appliances at an electrical cost of

    asked by ashley on September 4, 2010
  68. physics! HELP!

    A filament lamp- cost- 80p effiency- 0.2 expected life- 1000 hours a compact fluorescent lamp (CFL)- cost- £3.00 effiency- 0.8 expected life- 8000 hours a filament lamp with a power rating of 100W gives 2000 units of light. what power rating would a CFL

    asked by 4611star on February 29, 2012
  69. Physics

    Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER) rating that consumers can use to compare different models. A SEER rating is the ratio of heat pumped to energy input, similar to a COP but using English units,

    asked by Morgyn on November 16, 2016
  70. electricity

    the function of a capacitor in an electric circuit is to? A)allow current flow between its plates. B)measure the amount of current in the circuit. C)increase circuit power. D) store electric charges. A and D are both correct, if you include in "current

    asked by angela on August 23, 2005
  71. Economics

    What is usually the relationship between a bond’s rating and the interest rate a company pays to buyers? A. The rating is the same as the rate. B. The higher the rating, the lower the rate. C. There is no relationship. D. The higher the rating, the

    asked by Anonymous on June 4, 2012
  72. physics

    An average of 120KW of electric power is sent to a small town from a power plant constant 10km away.the transmission lines have a total resistance of 0.4ohms, calculate the power loss if the is transmitted at 240v.

    asked by poppy on April 28, 2019
  73. physics

    An RC car has a power rating of 12 W and a mass of 1.0 kg. How long would it take to reach 5 m/s ? thanks.

    asked by erin on November 24, 2010
  74. physics

    an electric hot water heater takes in cold water at 13.0 degrees celsius and delivers hot water. the hot water has a constant temperature of 45 degrees celsius when the "hot" faucet is left open all the times, and the volume flow rate is 5.0 x 10 ^-6

    asked by Anonymous on June 18, 2014
  75. political science

    The book has a chart listing the public approval of several things/people/events and compares it to the approval rating of Congress. Who/what has a LOWER approval rating than Congress? The IRS Paris Hilton All of these choices have a HIGHER approval rating

    asked by ryan on March 27, 2016
  76. HR

    In which performance technique are managers given three performance rating scales per dimension and asked to indicate whether the employee's performance is above (+), at (0), or below (-) the statements? A. Behavioral-observation scale B. Mixed-standard

    asked by blue on June 30, 2018
  77. physics

    filament lamp: cost-80p efficiency-0.2 expected life- 1000 hours compact fluorescent lamp (CFL): cost- £3.00 efficiency-0.8 expected life- 8000 hours A filament lamp with a power rating of 100 w gives 2000 units of light. what power rating would a CFL

    asked by sam on November 22, 2015
  78. Physics

    Three resistors are connected in series across a battery. The value of each resistance and its maximum power rating are as follows: 7.1Ω and 20.9 W, 29.5Ω and 11.4 W, and 13.6Ω and 12.5 W. (a) What is the greatest voltage that the battery can have

    asked by Brooke on March 3, 2017
  79. Algebra

    The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the over is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7

    asked by yolanda on May 23, 2008
  80. math116

    The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the over is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7

    asked by Tamika on August 1, 2009
  81. algebra

    The instruction manual on the industrial oven suggests your oven temperature will increase by 45 degrees Fahrenheit per minute. When the over is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7

    asked by danette on April 30, 2008
  82. math problem

    please help me solve The oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7 minutes? Write an expression and

    asked by Lavern on November 21, 2011
  83. Physical Science

    A camcorder has a power rating of 16 watts. If the output voltage from its battery is 4 volts, what current does it use?

    asked by Francisco on February 7, 2018
  84. consumers

    you go to the whome insurance company for auto insurance the charge $525.00 as a base rate for six months of insurance for your vehicle they offer a 15% discount for safe driver habits and a 10% discount for an excellent credit rating of 5% for a good

    asked by Anonymous on January 30, 2015
  85. statistics

    How do ethics affect your chosen level of significance? I am not sure if I understand what the instructor is wanting can some look at my answer and see if I am close and if I am missing something Answer: The level of significance to my understanding is

    asked by JOHN on February 12, 2009
  86. Physics

    A steam-electric power plant delivers 900 MW of electric power. The surplus heat is exhausted into a river with a flow of 2.91×105 kg/s, causing a change in temperature of 1.07 oC. A. What is the efficiency of the power plant? B. What is the rate of the

    asked by Abbey on April 6, 2016
  87. Integers

    A hockey players play minus rating compares the number of goals scored by his or her team (plus) to the number scored by the opponents (minus) while he or she is playing. In 1986 eight players on the San Jose Sharks had an average plus-minus rating of -17.

    asked by Edward on May 23, 2015
  88. Physics

    Using 3 - 4 complete sentences, explain the role of both types of transformers in getting electric energy from an electric power plant (coal-fired, natural gas or nuclear) to our homes.

    asked by Alisia on November 30, 2015
  89. physics

    I'm supposed to design a PV system that could provide an average electric power of 10kW. The average power generation of a solar panel is 20% of the peak power generation. Determine Peak power.

    asked by Tim on March 12, 2008
  90. physics

    A microwave oven has a power requirement of 1250 W. A frozen dinner requires 6.5 min to heat on full power. If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?

    asked by kim on September 18, 2016
  91. Algebra 2

    if one class had 20 students participating in the taste test and each student's rating is represented as ak, how do you write the formula for finding the mean rating using summation notation?

    asked by Mary on February 29, 2012
  92. Physics II

    The heating element of an electric oven is designed to produce 3.3 kW of heat when connected to a 240-V source. What must be resistance of the element?

    asked by Jenny on February 8, 2008
  93. Physics

    Power transmission lines often use a form of electric current called alternating current, but in many regions, such as the Province of Quebec, high-voltage direct-current lines are used instead. Direct current is the kind of electric current you are

    asked by Sheree on May 31, 2012
  94. Science grd 9

    Calculate the cost of watching TV for 5 h at night at a rate of 8.8 cents/kW•h. The TV has a power rating of 180W. Please show work

    asked by Gagan on December 2, 2010
  95. Math

    Posted by Pam on Thursday, July 21, 2016 at 10:41am. One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum

    asked by Pam on July 21, 2016
  96. Math

    Posted by Pam on Thursday, July 21, 2016 at 10:41am. One day 3/8 of the students in Jack's class ate toast for breakfast. Another 1/8 of the students ate oatmeal. Jack added the fractions and found the sum was 7/8. Which statement best describes the sum

    asked by Pam on July 22, 2016
  97. Linear Programming

    A Company wishes to assign six of its workers to six different jobs (one worker to each job and vice versa). The rating of each worker with respect to each job on a scale of 0 to 10 (10 being a high rating) is given by yhe following table: Job 1 Job 2 Job

    asked by Abi on October 14, 2014
  98. chemistry

    A 2.000g sample of FeF2 times xH2o is dried in an oven. When the anhydrous salt is removed from the oven, its mass is 0.789g. What is the value of x?

    asked by Danielle on September 9, 2010
  99. physics

    At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m^2, averaged over a 24-hour day.If the average power requirement in your home is 2.8 kW and you can convert solar power to electric power with 8.0 % efficiency, how

    asked by Christy on April 4, 2012
  100. physics

    At a certain location, the solar power per unit area reaching Earth's surface is 200 W/m^2, averaged over a 24-hour day.If the average power requirement in your home is 2.8 kW and you can convert solar power to electric power with 8.0 % efficiency, how

    asked by christy on April 3, 2012