Consider two cold canned drinks, one wrapped in a blanket and the other placed on a table in the same room. Which drink will warm up faster?

Q: Two spheres to same material have their radii in the ratio 2: 3. They are heated to same temperature…

A: To compare - Initial rate of fall of temperature Given- r1r2=23Here,r1=radius of first…

Q: It’s a hot day, and your apartment is rather warm. Your roommate suggests cooling off the apartment…

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Q: Ex. 124 A body cools from 75° to 55°C in 10 minutes in a surrounding of 31°C. At what temperature…

A: To find-Temperature of body (θ)=?Given-θ1=750 Cθ2=550 Ct1=10 minθ0=310 C

Q: to loosen the metal lid on a hard-to-open glass jar by running hot water over top of it for a few…

A: We know that here we have given the when we put the glass jar which has a metal lid which is hard to…

Q: Imagine a special air filter placed in a window of a house. The tiny holes in the filter allow only…

A: Air molecules moving with high speed indicate that they have higher kinetic energy and hence they…

Q: It is possible to approximate the outside temperature based on how fast crickets are chirping.…

A: The points will be:

Q: An interval of one Celsius degree is equivalent to an interval of: O 5/9 kelvin one Fahrenheit…

A: Given data:  The difference in temperature = 1 °C Required: Difference in Celsius scale of 1 °C is…

Q: Is it possible to chill a room by leaving the fridge door open?

A: Reason:  It is not possible to chill a room just by leaving the refrigerator(fridge) door open as it…

Q: A car weighing 1.30×10^3 kg reduces its speed with strong braking from 130 km/h to 90.0 km/h. By how…

A: SOlution: Given that M = 1.3 x103  kg V1 = 130 km/h v2 = 90 km/h m = 6 kg C = 450 J/kgK

Q: A student has a calorimeter with 211.7 grams of 24.7 degrees celsius water is contained within it.…

A: Mass of first sample of water (m) = 211.7 gram Initial temperature of first sample of water (t) =…

Q: In the ball-and-spring atomic model for thermal expansion, the statement “More thermal energy means…

A: In ball-spring atomic model, the atoms (balls) are connected to each other with springs of spring…

Q: You fill an insulated mug with 360 g of coffee at 99 °C. How many grams of ice at -10 °C should you…

A: The mass of the water = 360 gramThe temperature of the coffee = 99 degree celciuscoffee's specific…

Q: Most objects tend to expand when heated. Which of the following statements is true? At higher…

A: Answer:- At higher temperatures objects have higher kinetic energies so their their particles…

Q: You visit your friend and find her in her kitchen with a rubber ball and a bucket of ice water…

A: Here she said that she wanted to know how high a rubber ballbounces is affected by its temperature.…

Q: Which of the following statements is always true?   The mass of the substance is inveresely…

A: Statement 1 is false   heat capacity =  Cp q = m Cp ∆T  q = heat transfer  m =mass  heat is…

Q: An old tale says: On a hot summer day you can cool the kitchen by leaving the refrigerator door…

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Q: A tub containing 47 kg of water is placed in a farmer's canning cellar, initially at 10° C. On a…

A: Given: Heat lost by walls = 1200 J/sec Mass o the water = 40 kg Initial temperature of the cellar =…

Q: Two bowls of soup with identical temperatures are placed on a table. Bowl 1 has a metal spoon in it;…

A: We must assess if the soup in bowl 1 is hotter, colder, or the same temperature as the soup in bowl…

Q: How much heat transfer is required to raise the temperature of a 0.32-kg aluminum pot containing 3.2…

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Q: An astronaut has two objects that are identical in all respects, except that one is painted black…

A: Which of the two objects painted black and silver cools down at a faster rate.

Q: What is the increase in temperature (in Celsius) of 2 m3 of air at 30°C after 15000 calories of heat…

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Q: lice of Ampalaya cake is removed from an oven at 240 °F and left to cool at room temperature, which…

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Q: Nuclear fusion, the energy source of the sun and hydrogen bombs, occurs much more readily when the…

A: The average kinetic energy of the atoms is given as K=2.10×10-14 J

Q: The heat of combustion of gasoline is approximately 47 kJ /g . If a gasoline engine operated between…

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Q: Using Newton's Law of Cooling: The manager of a company was reported murdered, the body originally…

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Q: A cup of rather dilute hot tea initially at 140 degrees F is served to a customer at Howard…

A: As the mixing process is adiabatic, no heat is lost to the surroundings. So, Q = ∆H = 0, where ∆H is…

Q: Which requires more heat: 1 g ice at 0° C or 1 g water

A: Given; 1g of ice at 00C or 1 g water at 00CWhich requires more heat to raise its temperature to…