a freezer in a refrigerator takes 2 hrs to comvert 2.15kg of water initially at 21.5 degrees celsius to just frozen ice. calculate the rate at which the reezer absorbs heat.
40,343 results
math
find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles I don't

Math:)
The data in the table represents the average number of daylight ours each month in Springfield in 2015, rounded to the nearest quarterhour. Jan~9.5 hrs Feb~10.5 hrs Mar~12 hrs Apr~13.25 hrs May~14.5 hrs Jun~15 hrs Jul~14.75 hrs Aug~13.75 hrs Sep~12.5 hrs

physics
An ideally efficient freezer cools food to 260 K. If the room temperature is 300K, how much work does the freezer consume when removing 100J heat from the food?

chemistry
Five kg of ice cubes are moved from the freezing compartment of a refrigerator into a home freezer. The refrigerator's compartment is kept at 4.0 celsius. the home freezer is kept at 17 celsius. How much heat does the freezer's cooling systeam remove

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What is the work needed to lift 15kg of water from well 12m deep. Assume the water has a constant upward acceleratin of 0.7m/s^2?

chemisry
Why does luis place 3 cups of water without any solute in the freezer? a. if some water spills, he will have extra b. the plain water is the control group c. he wants to know how long water takes to freeze d. the 3 cups of water are unnecessary to the

Physics
1. A worker pushes horizontally on a 2000 N refrigerator on a kitchen floor with a force of 25 N. Which statement is the most accurate about the situation? A. If the refrigerator moves forward, this person feels it pushing back with less than 25 N. B. The

math
Suppose you are driving to visit a friend in another state. you are driving 60 miles per hour. you must drive 480 miles total . if you have already driven 120 miles , how long will it take you to reach your destination? a. 2 hrs b. 4 hrs c. 6 hrs c. 12 hrs

physics multiple choice
A worker pushes horizontally on a 2000 N refrigerator on a kitchen floor with a force of 28.0 N. A. If the refrigerator moves forward, this person feels it pushing back with less than 28.0 N. B. The person always feels a 28.0 N push from the refrigerator.

Math
With time, t, in minutes, the temperature, H, in degrees Celsius, of a bottle of water put in the refrigerator at time t=o is given by H = 4 + 16e.02t How fast is the water cooling initially? After 10 minutes? Include units in your answer

math
a water tank is a cubiod with dimensions 40cm by 90cm by 70 cm. the tank is initially empty and is then filled with water which flows from a pipe of cross sectional area 1.2 sqcm at a speed of 3.5m/s. calculate the timein minutes that it takes to fill the

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How do you set this up? Solve the system using substitution: A boat travels 18 miles downstream in 1.5 hrs. It then takes the boat 3 hrs. to travel upstream the same distance. Find the speed of the boat in still water and the speed of the current. Thanks

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Analyze the following statement. Brandon puts his water in the refrigerator so it will stay cold. Is the statement an example of correlation or causation? A. Correlation because there aren't enough observable trials B. Causation because a refrigerator

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Why does the temperature remain constant around 0 degrees C and 100 degrees C? For what? For water when it is freezing or boiling? Or do you have another question in mind? Sorry, it's for water when it is freezing or boiling. Think of it this way. Start

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Two drivers start at the same time to make a 100 km trip. Driver 1 takes 2 hrs to complete the trip. Driver 2 Thames 3 hrs, but stops for an hour at the halfway point. Which driver had a greater average speed for the whole trip? Explain

Physical Science
An ice tray with 175 g of water at 30°C is placed in a freezer at –9°C. How much energy must be removed from the water to lower its temperature to the freezing point?

Chem please help
Which of the following would have the greatest entropy? A. Water placed in the refrigerator B. Water sitting out on the kitchen counter C. Water vapor D. An ice cube I think c what about you drbob222

Physics
A freezer has a coefficient of performance of 6.30. It is advertised as using 486 kWh/yr. Note: One kilowatthour (kWh) is an amount of energy equal to running a 1kW appliance for one hour. a) On average, how much energy does it use in a single day? I got

math
find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles i need to show

chemistry
Five kilograms of ice cubes are moved from the freezing compartment of a refrigerator into a deep freezer. The refrigerator’s freezing compartment is kept at 4.0 degrees Celsius. The deep freezer is kept at 17 degrees Celsius. How much heat does the

Uniform Motion
A certain fish requires 3 hrs to swim 15km downstream. The return trip upstream takes 5 hrs. What is the speed of the fish still in water? How fast is the current of the stream?

math
1. With time, t, in minutes, the temperature, H, in degrees Celsius, of a bottle of water put in the refrigerator at time t=o is given by H = 4 + 16e.02t How fast is the water cooling initially? After 10 minutes? Include units in your answer

Physics
a): Two 50 g ice cubes are dropped into 200 g of water in a thermally insulated container. If the water is initially at 25 degree Celsius, and the ice comes directly from a freezer at 15 degree Celsius, what is the final temperature at thermal

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You are unloading a refrigerator from a delivery van. The ramp on the van is 5.0m long and its top end is 1.4m above the ground. As the refrigerator moves down the ramp, you are on the downside of the ramp trying to slow the motion by pushing horizontally

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A person pushes on a 59kg refrigerator with a horizontal force of 260 N; the minus sign indicates that the force points in the x direction. The coefficient of static friction is 0.60. (a) If the refrigerator does not move, what are the magnitude and

Chemistry  Heat of Fusion
When water is frozen into ice cubes in the freezer, where does the released heat go? I think it just goes into the air in the freezer, nowhere special. Because won't the heat become cold air then? That's right. The heat just adds to the heat load that the

physics_heat
an ideal refrigeratorfreezer operates with a COP=7.0 in a 25 degree room. what is the temperature inside the freezer?

New Consumer Math
Luis Giron works at the Pancake Palace from 3:00 p.m. until 12:15 a.m. 5 nights a week. If he takes a 30minute break each evening, how many hours per week does he work? 46.25 hrs 44.75 hrs. 43.75 hrs.

consumer math
Luis Giron works at the Pancake Palace from 3:00 p.m. until 12:15 a.m. 5 nights a week. If he takes a 30minute break each evening, how many hours per week does he work? 46.25 hrs 44.75 hrs. 43.75 hrs.

Alegebra
Working alone it takes Jerry 9 hrs to mop a warehouse. Ruth can mop the same warehouse in 10 hrs. If they worked together how long would it take them?

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A freezer contains 20 kg of food with a specific heat of 2 x 10^3 J/kgC. The freezer motor then operates for 10 minutes reducing the temperature to 8 degrees Celsius. a) How much heat is removed from the food during this time? The freezer motor operates

had
A 0.106 kg ice cube is taken out of a freezer with temperature 16°C. It is then added to a glass of water with mass 0.25 kg. The water initially has a temperature of 24.2 °C. Assume no heat is added or lost to the surroundings. Calculate the amount heat

physics
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 294 N for 7.6 s, during which time the refrigerator moves a distance of 3.2 m at constant velocity. (a) What is the total work (by all forces) done on the

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ou are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of F = +214i − 171k N to try and move the 64.0kg refrigerator. The coefficient of static friction is 0.660. (a) How much static frictional force does the

Physics
A person pushes on a 56kg refrigerator with a horizontal force of 251 N; the minus sign indicates that the force points in the −x direction. The coefficient of static friction is 0.7. (a) If the refrigerator does not move, what are the magnitude and

physics
A person pushes on a 55kg refrigerator with a horizontal force of 250 N; the minus sign indicates that the force points in the x direction. The coefficient of static friction is 0.56. (a) If the refrigerator does not move, what are the magnitude and

Physics
A water bath contains 15kg of water at 50°C. If hot and cold taps are turned on such that they deliver water at the rate of 30kg per minute. Determine the temperature of the mixture after 20minutes, if the temperature of the hot and cold water is 100°C

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1). A hot iron horseshoe (mass=.40kg), just forged, is dropped into 1.35L of water in a .30kg iron pot initially at 20.0 degrees Celsius. If the final equilibrium temperature is 25.0 degrees Celsius, estimate the initial temperature of the hot horseshoe.

Physics Help Please!!!! Urgent!!
1) A 10 kg lead brick rests on a wooden table. if a force of 46N is required to slide the brick across the table at a constant velocity, what is the coefficient of friction? 2) A horizontal force of 100N is applied to a 200 kg refrigerator sitting on a

physics
a freezer in a refrigerator takes 2 hrs to comvert 2.15kg of water initially at 21.5 degrees celsius to just frozen ice. calculate the rate at which the reezer absorbs heat.

chemistry
Hi. We did a popcorn popping lab for chemistry and I was wondering if someone could help me with these few questions here: 1) Why is popcorn better stored in the freezer or refrigerator rather than on the shelf at room temperature? My Answer: I think it

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An ideal refrigeratorfreezer operates with a COP = 8.0 in a 28°C room. What is the temperature inside the freezer?

math
a motorboat takes 4 hours to travel 256miles going up stream. the return trip takes 2 hrs going downstream. what is the the rate of the boat in still water and what is the rate current. rate of the boat in still water = mi/hrs rate of the current=mi/hrs.=

college
Does this passage contain an argument? Will a beverage begin to cool more quickly in the freezer or in the regular part of the refrigerator? Well, of course it'll cool faster in the freezer! There are lots of people who don't understand anything at all

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can someone please help me, Rob is going to college in Oklahoma which is 680 miles from their his home in Tennessee. He can travel on state highways at 55mph or on the interstate at 70mph. Approximately, how much longer will his trip be if he takes state

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School is out at 3:50 pm. Band practice is 2 1/2 hrs dinner takes 3/4 of an hour homework takes 1 1/4 hrs. You have to go to bed at 10. About how much time is left to play video games? A. 3 1/2 B.5 hours C.1 hour D. 2 hours D?

science
The bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. DON'T include the rest stops. A bus driver runs a round trip route between 3 cities. It takes 5 hrs for the 400 km

science
The bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. DON'T include the rest stops. A bus driver runs a round trip route between 3 cities. It takes 5 hrs for the 400 km

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gabriella volunteers 15 hours in a week. How many weeks in a year would that total in?  10 hrs?  4 hrs?  3 hrs?  2 hrs?

Physics
A mass of 4.77 kg of chilled water at 0C is placed in a freezer which is kept at −19.2C. Approximately how much electric energy is needed to operate the compressor to cool this water to −19.2 C if the room temperature is maintained at 24.2C? The

math urgent
a motorboat takes 4 hrs to travel 256 miles going upstream. the return trip takes 2 hours going down stream. what is the rate of the boat in still water and what is the rate current. rate of the boat in still water=mi/hr rate of the current=mi/hr

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Find the time for two people working together to complete a task if it takes them 4.5 hrs and 6 hrs working individually.

Physics
Can someone, please help me out with this question. A uniform rectangular 91.21 kg refrigerator with height h = 2.069 m and width w = 1.153 m is pushed at a constant velocity across a level floor. The refrigerator is pushed in the horizontal direction

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JoJo exerts a horizontal force of 276 N in attempting to push a freezer across a room, but the freezer does not move. what is the friction force that the floor exerts on the freezer?

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A certain refrigerator is rated as being 39% as efficient as a Carnot refrigerator. To remove 102 J of heat from the interior at 0 °C and eject it to the outside at 23 °C, how much work must the refrigerator motor do?

physics
A certain refrigerator is rated as being 39% as efficient as a Carnot refrigerator. To remove 102 J of heat from the interior at 0 °C and eject it to the outside at 23 °C, how much work must the refrigerator motor do?

physics
a) Two 36 g ice cubes are dropped into 300 g of water in a thermally insulated container. If the water is initially at 19°C, and the ice comes directly from a freezer at 19°C, what is the final temperature at thermal equilibrium? (b) What is the final

physics
You are trying to slide a refrigerator across a horizontal floor. The mass of the refrigerator is 199 kg, and you need to exert a force of 343 N to make it just begin to move. (a) What is the coefficient of static friction between the floor and the

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Three people can wash clothes in 1/3 hrs, 1/4 hrs and 1/4 hrs. If they started together at 8:30 am, at what time will they finish this work together? *Please anyone to help me out this question*

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Blow up a balloon & tie it up. Measure its diameter with a measuring tape. Place it in a freezer for at least an hour.Predict what happens to the balloon after some time in the freezer when its diameter is measured again. The answer given is,"The balloon

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A 135 g sample of ice is in a freezer at 21 ˚C. It is removed from the freezer and allowed to melt and the resulting water warms up to the room temperature, 23˚C. How much energy is absorbed by the 135g sample? The specific heat capacity of ice is 2.0

Physics
A carnot refrigerator uses an ideal carnot cycle to cool its interior. The outside air has a temp of 304K and the refrigerator is kept at a temp of 279K. 1) what is the coefficient of performance of this refrigerator? 2) if the refrigerator does 1500J of

Physics
A carnot refrigerator uses an ideal carnot cycle to cool its interior. The outside air has a temp of 304K and the refrigerator is kept at a temp of 279K. 1) what is the coefficient of performance of this refrigerator? 2) if the refrigerator does 1500J of

Math
Trina works after school and on weekends. She always works three days each week. This week she worked 2 3/4 hrs on Monday. 3 3/5 hrs on Friday and 5 1/2 hrs on Saturday. Next week she plans to work the same number of hrs as this week but will work the same

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Dylan hangs a calendar on a refrigerator with a magnetic hook. Unfortunately, the magnet is too weak, so the magnet and calendar slide down the side of the refrigerator to the floor with an acceleration of magnitude 3ms2. If the coefficient of sliding

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one ballon is in the freezer and other is at room temprature wht is the size of baloon in freezer

Algebra Word Problems
A long sleeve blouse requires 1.5 hrs of cutting and 1.2 hrs of sewing. A short sleeve blouse requires 1 hr of cutting and .9 hrs of sewing. Sleeveless blouse requires .5 hrs of cutting and .6 hrs of sewing. There are 380 hrs of labor available in the

physics
John pushes on a 400 kg refrigerator with a force of 800 N. While sliding a friction force of 300 N acts on the refrigerator. What is the acceleration of this refrigerator?

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Help!!!! Please!!! The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator. A certain refrigerator has a coefficient of performance of 4

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Refrigerator Suppose that you want to freeze 1.2 kg of water for a party, and only have 10 minutes to do it. Relying on nothing but your keen physical abilities, a dixie cup, duct tape and a piece of string, you manage to build a refrigerator unit which

Chemistry
Suppose that a mixture of ice and water is placed in a refrigerator that is held at the freezing point of water, exactly 0.0C. Calculate deltaS for the icewater mixture, deltaS for the refrigerator, and deltaStotal when 5.00g of ice forms. Is this process

physics multiple choice
A worker pushes horizontally on a 2000 N refrigerator on a kitchen floor with a force of 28.0 N. A. If the refrigerator moves forward, this person feels it pushing back with less than 28.0 N. B. The person always feels a 28.0 N push from the refrigerator.

science
the diagram above shows the heating curve for the process of ice to liquid to gas. Rachel put a bottle of soda in the freezer while she finish getting ready for school. When Rachel retrieve the starter from the freezer the soda is slushy just like the way

mechanics
Dylan hangs a calendar on a refrigerator with a magnetic hook. Unfortunately, the magnet is too weak, so the magnet and calendar slide down the side of the refrigerator to the floor with an acceleration of magnitude 3ms2. If the coefficient of sliding

physics
Suppose that you want to freeze 1.2 kg of water for a party, and only have 10 minutes to do it. Relying on nothing but your keen physical abilities, a dixie cup, duct tape and a piece of string, you manage to build a refrigerator unit which can do the job.

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A.Driving from El Paso to San Antonia on a bus ...560 miles traveling at avg speed of 60 miles per hr how do I make a graph with the time & distance. B. have to estimate distance bus tvls in 2 hrs...2 3/4 hrs...3.5 hrs...7.25 hrs.. C.need to describe in

CONSERVING HOME ENERGY
READ EACH OF THE STATEMENTS BELOW. THEN, IN ONE OR TWO WORDS, WRITE WHAT YOU COULD DO TO CONSERVE ENERGY FOR THAT PARTICULAR ITEM. 1. A DRIPPING FAUCET 2. AN OPEN WINDOW WITH HEAT ON 3. DRAFT AROUND A CLOSED DOOR 4. THROWING OUT PLASTIC CONTAINERS 5.

Physics
A Carnot refrigerator is used in a kitchen in which the temperature is kept at 301 K. This refrigerator uses 216 J of work to remove 2360 J of heat from the food inside. What is the temperature inside the refrigerator?

Physics
0.2 kg of water at 30 degrees celsius is put into a freezer to make ice. much energy has to be removed from the water to freeze it?

Physics
A person pushes on a 60kg refrigerator with a horizontal force of 260 N; the minus sign indicates that the force points in the x direction. The coefficient of static friction is 0.68. (a) If the refrigerator does not move, what are the magnitude and

Physics
A person pushes on a 62kg refrigerator with a horizontal force of 280 N; the minus sign indicates that the force points in the x direction. The coefficient of static friction is 0.70. (a) If the refrigerator does not move, what are the magnitude and

Physics
A person pushes on a 56kg refrigerator with a horizontal force of 260 N; the minus sign indicates that the force points in the x direction. The coefficient of static friction is 0.58. (a) If the refrigerator does not move, what are the magnitude and

Chemistry
If 82.4 g of cold water (initially at 22 °C) is mixed in an insulated container with 96 g of hot water (initially at 88 °C), what will be the final temperature of the water in °C?

science
when the beaker of water is heated what will happen to the level of water in the tube. this thermometer would be no use to measure the temperature in the freezer.write 2 sentences to explain why

Science asap!!!
This question is about energy efficiency. e.g. more efficient A= B C D E Less Efficient my question An old freezer has an energy consumption per year of 350kwh use the equation in the box to calculate the extra cost of using the old freezer for one year

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Week 1 42hours(including 4 hrs sick leave,6 hrs travel) Week2 46 hours(including 5 hrs travel) What percentage of the recorded time did the worker spend traveling

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A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90◦C. The metal and water are placed in an insulated container. The specific heat for water is 4186 J kg K . The metal has a melting point of 60◦C. The latent

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Carnot refrigerator A has a 21 % higher coefficient of performance than Carnot refrigerator B. The temperature difference between the hot and cold reservoirs is 30 % greater for B than for A. If the coldreservoir temperature for refrigerator B is 150 K,

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Your house has a voltage of 120V. You want to estimate how much energy (in Joules) you use one morning. You wake up at 7am and leave your place at 9 am. The appliances turned on in your kitchen at breakfast time are: •One hot plate: runs for 10 minutes,

Physical Science
A 1.0 kg glass bowl at 37 °C is placed in a freezer. How much heat will the freezer have to remove from the bowl to take it to 0 °C? (cglass = 0.2 cal/deggm)

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The halflife of a certain radioactive sub stance is 8 hrs. There are 5 grams present initially. Which of the following gives the best approximation when there will be 1 gram remaining?

chemistry  radioactive decay
suppose you have a 150 gram sample of radioactive decay god191 which has a half life of 3.4 hours. how many grams of gold will ramain after 10hrs ? after 24 hrs? answer : 10 hrs :10/3.4= 2.94 times 150*(1/2)^2.94 = 18.75 grams 24 hrs: 24/3.4 = 7.06

physics
It takes you 5 hrs to climb the top of a peak. The altitude of the peak is 400m, and you started from your camp that is an altitude of 300m. Estimate your power output during the climb. First i found that you move 1000m in 5 hrs, which would be .0556m/sec.

Science : Physics
A 15kg object takes 26.3 meters to stop because of friction. Assume no skidding. If the frictional force is 60 N, what is the initial velocity of the object?

Algebra 2
An appliance store manager is ordering chest and upright freezers. One chest freezer costs $250 and delivers a $40 profit. One upright freezer costs $400 and delivers a $60 profit. Based on previous sales, the manager expects to sell at least 100 freezers.

Algebra
An appliance store manager is ordering chest and upright freezers. One chest freezer costs $250 and delivers a $40 profit. One upright freezer costs $400 and delivers a $60 profit. Based on previous sales, the manager expects to sell at least 100 freezers.

kalinga apayao state college
keith has to grind tha values on his mercedes. he estimates it will take him 8 hrs.. his friends joe and russ have done the samejob in 10 and 12 hrs. respectively. keith had worked for 2 hrs... joe for another half an hour alone and russ came along and