Essential University Physics
4th Edition
ISBN: 9780134988559
Author: Wolfson, Richard
Publisher: Pearson Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 16, Problem 74P
To determine
To plot: The given data, determine a best fit line ,and use the slope of that line to determine the microwave power of the particular oven.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Consider a surface of area A at which the convection and radiation heat transfer coefficients are hconv and hrad, respectively. Explain how you would determine (a) the single equivalent heat transfer coefficient and (b) the equivalent thermal resistance. Assume the medium and the surrounding surfaces are at the same temperature.
On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by 45.0 °C in 120 s. What was the rate of power absorption by the spaghetti, given that its specific heat is 3.76× 103 J/kg.°C?
Thermal energy is being transferred through a 0.8 mm layer of human skin at a rate of 1.1 x 104 W/m2. The room temperature is 27 °C.To reduce heat flux, the skin is wrapped with a clothing material. What should be the thickness of the clothing material covering the surface of this skin tissue to reduce the heat flux to half of its original value? What is the temperature at the skin-clothing material interface?
Note: if you think you need to have more information to solve this problem, you can make assumptions. Please state them clearly in your answer, if you need to make such assumptions.And please explain step by step to the answer to better understanding
Chapter 16 Solutions
Essential University Physics
Ch. 16.1 - Is there (a) no temperature, (b) one temperature,...Ch. 16.2 - A hot rock with mass 250 g is dropped into an...Ch. 16.3 - The figure shows three slabs with the same...Ch. 16.3 - Prob. 16.4GICh. 16.4 - A houses thermostat fails, leaving the furnace...Ch. 16 - Does a thermometer measure its own temperature or...Ch. 16 - Compare the relative sizes of the kelvin, the...Ch. 16 - If you put a thermometer in direct sunlight, what...Ch. 16 - Why does the temperature in a stone building...Ch. 16 - Why do large bodies of water exert a...
Ch. 16 - Stainless-steel cookware often has a layer of...Ch. 16 - Prob. 7FTDCh. 16 - Glass and fiberglass are made from the same...Ch. 16 - To keep your hands warm while skiing, you should...Ch. 16 - Global warming at Earths surface is generally...Ch. 16 - Prob. 11ECh. 16 - A Canadian meteorologist predicts an overnight low...Ch. 16 - Normal room temperature is 68F. Whats this in...Ch. 16 - Prob. 14ECh. 16 - At what temperature do the Fahrenheit and Celsius...Ch. 16 - The normal boiling point of nitrogen is 77.3 K....Ch. 16 - Prob. 17ECh. 16 - Prob. 18ECh. 16 - Prob. 19ECh. 16 - Whats the specific heat of a material if it takes...Ch. 16 - The average human diet contains about 2000 kcal...Ch. 16 - Prob. 22ECh. 16 - Prob. 23ECh. 16 - Building heat loss in the United States is usually...Ch. 16 - Find the heat-loss rate through a slab of (a) wood...Ch. 16 - Youre a builder whos advising a homeowner to have...Ch. 16 - An 8.0 m by 12 m house is built on a concrete slab...Ch. 16 - Find the -factor for a wall that loses 0.040 Btu...Ch. 16 - Compute the -factors for 1-inch thicknesses of...Ch. 16 - A horseshoe has surface area 50 cm2, and a...Ch. 16 - An oven loses energy at the rate of 14 W per C...Ch. 16 - Youre having your homes heating system replaced,...Ch. 16 - The filament of a 100-W lightbulb is at 3.0 kK....Ch. 16 - A typical human body has surface area 1.4 nr and...Ch. 16 - Example 16.2: An iron frying pan of mass 2.65 kg...Ch. 16 - Prob. 36ECh. 16 - Example 16.2: During the refueling of a nuclear...Ch. 16 - Prob. 38ECh. 16 - Example 16.7: A solar greenhouse has 435 ft2 of...Ch. 16 - Prob. 40ECh. 16 - Example 16.7: An asteroid in the belt between Mars...Ch. 16 - A constant-volume gas thermometer is filled with...Ch. 16 - A constant-volume gas thermometer is at 55-kPa...Ch. 16 - In Fig. 16.2s gas thermometer, the height h is...Ch. 16 - Prob. 46PCh. 16 - Typical fats contain about 9 kcal per gram. If the...Ch. 16 - A circular lake 1.0 km in diameter is 10 m deep...Ch. 16 - How much heat is required to raise an 800-g copper...Ch. 16 - Initially, 100 g of water and 100 g of another...Ch. 16 - Prob. 51PCh. 16 - Two neighbors return from Florida to find their...Ch. 16 - Prob. 53PCh. 16 - In the 2011 nuclear accident at Fukushima, Japan,...Ch. 16 - Prob. 55PCh. 16 - The temperature of the eardrum provides a reliable...Ch. 16 - Prob. 57PCh. 16 - Prob. 58PCh. 16 - A piece of copper at 300C is dropped into 1.0 kg...Ch. 16 - While camping, you boil water to make spaghetti....Ch. 16 - A biology labs walk-in cooler measures 3.0 m by...Ch. 16 - One end of an iron rod 40 cm long and 3.0 cm in...Ch. 16 - Prob. 63PCh. 16 - An electric stove burner has surface area 325 cm2...Ch. 16 - Youre considering purchasing a new sleeping bag...Ch. 16 - A blacksmith heats a 1.1-kg iron horseshoe to...Ch. 16 - Whats the power output of a microwave oven that...Ch. 16 - A cylindrical log 15 cm in diameter and 65 cm long...Ch. 16 - A blue giant star whose surface temperature is 23...Ch. 16 - Prob. 71PCh. 16 - Prob. 72PCh. 16 - Estimate the average temperature on Pluto,...Ch. 16 - Prob. 74PCh. 16 - Prob. 75PCh. 16 - Prob. 76PCh. 16 - Prob. 77PCh. 16 - In a cylindrical pipe where area isnt constant....Ch. 16 - Prob. 79PCh. 16 - Prob. 80PCh. 16 - A passive solar house has south-facing windows...Ch. 16 - A more realistic approach to the solar greenhouse...Ch. 16 - Fiberglass is a popular, economical, and fairly...Ch. 16 - Fiberglass is a popular, economical, and fairly...Ch. 16 - Fiberglass is a popular, economical, and fairly...Ch. 16 - Fiberglass is a popular, economical, and fairly...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Consider a circular grill whose diameter is 0.3 m. The bottom of the grill is covered with hot coal bricks at 950 K, while the wire mesh on top of the grill is covered with steaks initially at 5°C. The distance between the coal bricks and the steaks is 0.20 m. Treating both the steaks and the coal bricks as blackbodies, determine the initial rate of radiation heat transfer from the coal bricks to the steaks. Also, determine the initial rate of radiation heat transfer to the steaks if the side opening of the grill is covered by aluminum foil, which can be approximated as a reradiating surface.arrow_forwardFor objects at thermal equilibrium, Thermal energy between them does not exist. TRUE OR FALSE ? Explain why.arrow_forwardConsider a surface at a uniform temperature of 800 K. Determine the maximum rate of thermal radiation that can be emitted by this surface, in W/m2.arrow_forward
- A Styrofoam container used as a picnic cooler contains a block of ice at 0 oC. If 0.5 kg of ice melts in 0.79 hours, how much heat energy per second is passing through the walls of the container (in Watts)?arrow_forwardSuppose that you have left a 200 mL cup of coffee sitting until it has cooled to 30◦ C, which you find totally unacceptable. Your microwave oven draws 1100W of electrical power when it is running. If it takes 45s for this microwave oven to raise the temperature of the coffee to 60◦ C, what is the efficiency of heating with this oven? You will need to use the fact that 4.2 J of energy is required to raise the temperature of 1.0 mL of coffee by 1.0◦ C.arrow_forwardIn calculating temperatures in Fahrenheit and Kelvin, in which conversion do you have to apply the addition rule for significant figures?arrow_forward
- While painting the top of an antenna 225m in height, you accidentally let a1.00-L water bottle fall from your lunchbox. The bottle lands in some bushes at ground level and does not break. If a quantity of heat equal to the magnitude of the change in mechanical energy of the water goes into the water, what is the increase in temperature?arrow_forwardHow much energy (in J) is required to evaporate 25% of 4g of water currently at 100 degrees C? The answer (in fundamental SI unit) is ___________ (type the numeric value only, please do NOT use scientific notation)arrow_forwardThe first low of the thermodynamics shows U = Q - W, where U is a changing internal energy of the gas in the system, Q is a heat that the system received, and DW is work done by the system. If 15 kJ of heat flows out of a system and 30 kJ of work is done by the system, then what is the change in internal energy?arrow_forward
- Suppose you want to raise the temperature of a mass m of ice from T0 < 0 °C to T > 100 °C. In this problem, represent the heat of fusion as Lf, the heat of vaporization as Lv, and the temperatures at which the phase changes occur as Tf and Tv. How much heat must be transferred for this to happen, including the energy needed for phase changes? Your answer should be in terms of the variables in the introduction and the specific heats of ice (ci), water (cw), and steam (cs). The talent heats are Lf= 334kJ/kg and Lv=2256kJ/kg?arrow_forwardThe Earth intercepts 1.27 × 1017 W of radiant power from the Sun. Suppose the Earth, of volume 1.08 × 1021 m3, was composed of liquid water. How long would it take for the liquid water Earth at 0 ◦C to reach liquid water at 23.8 ◦C, if none of the power was radiated or reflected back out into space? Hint: There are 3.154 × 107 s in one year. The density of water is 10 × 103 kg/m3 and the specific heat of water is 4186 J/(kg K). a)113 years b)2.69 × 104 years c)1.13 × 105 years d)2.69 × 107 years e)26.9 yearsarrow_forwardA bowl with 4.0 ꞏ102 g of water is placed in a microwave at 500 W and left for 22 minutes. How much water is left in the bowl after the 22 min if the initial temperature of the water was 22 °C. (neglect the heat losses due to the bowl)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning