Physics for Scientists and Engineers
10th Edition
ISBN: 9781337553278
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 33, Problem 14P
(a)
To determine
The power per unit area utilized by the family.
(b)
To determine
The power per unit area utilized by the car.
(c)
To determine
The reason due to which the solar energy is not use directly.
(d)
To determine
The practical uses of solar energy.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
At a certain location , the solar power per unit area reaching Earth’s surface is 200 W/m square , average over a 24 hours day. If the average power requirement in your home 4.0 KW you can covert solar power to electric power with 13% efficiency. How large a collector area will you need to meet all your household energy requirements from solar energy?
A typical desktop personal computer uses around 100 W of power when carrying out intensive processing, such as running a video game. If you play such a game for 90 minutes, how much energy (in joules) will it use?
I often make tea in my microwave oven. I know that it takes two minutes to bring the temperature of a cup of water from room temperature to just about boiling: ready for the teabag. I looked up the characteristics of a microwave oven. Typically their power rating is about 1000 W, but I know that this is the power consumed from the power company, not the power delivered to the water. I looked up the efficiency of microwave ovens, and found that it is about 64%, meaning that a typical oven delivers 640 W to the water. I also looked up the frequency of the microwaves that an oven uses, and found thatf= 2,450 MHz.
(a) How much energy is delivered to the water in the making of a cup of tea?
(b) What is the wavelength of the microwave?
(c) What is the energy of one microwave photon?
(d) How many microwave photons are absorbed by the water in making a cup of tea?
Chapter 33 Solutions
Physics for Scientists and Engineers
Ch. 33.1 - Prob. 33.1QQCh. 33.3 - What is the phase difference between the...Ch. 33.3 - Prob. 33.3QQCh. 33.5 - Prob. 33.4QQCh. 33.6 - If the antenna in Figure 33.11 represents the...Ch. 33.7 - Prob. 33.6QQCh. 33.7 - A radio wave of frequency on the order of 105 Hz...Ch. 33 - Prob. 1PCh. 33 - Prob. 2PCh. 33 - A proton moves through a region containing a...
Ch. 33 - A diathermy machine, used in physiotherapy,...Ch. 33 - The distance to the North Star, Polaris, is...Ch. 33 - A radar pulse returns to the transmitterreceiver...Ch. 33 - The speed of an electromagnetic wave traveling in...Ch. 33 - You are working for SETI, the Search for...Ch. 33 - Review. A microwave oven is powered by a...Ch. 33 - Verify by substitution that the following...Ch. 33 - Why is the following situation impossible? An...Ch. 33 - At what distance from the Sun is the intensity of...Ch. 33 - If the intensity of sunlight at the Earths surface...Ch. 33 - Prob. 14PCh. 33 - High-power lasers in factories are used to cut...Ch. 33 - Review. Model the electromagnetic wave in a...Ch. 33 - Prob. 17PCh. 33 - Prob. 18PCh. 33 - Prob. 19PCh. 33 - Prob. 20PCh. 33 - A 25.0-mW laser beam of diameter 2.00 mm is...Ch. 33 - The intensity of sunlight at the Earths distance...Ch. 33 - Prob. 23PCh. 33 - Prob. 24PCh. 33 - Prob. 25PCh. 33 - Assume the intensity of solar radiation incident...Ch. 33 - Extremely low-frequency (ELF) waves that can...Ch. 33 - A large, flat sheet carries a uniformly...Ch. 33 - Prob. 29PCh. 33 - Prob. 30PCh. 33 - Prob. 31PCh. 33 - An important news announcement is transmitted by...Ch. 33 - Assume the intensity of solar radiation incident...Ch. 33 - Classify waves with frequencies of 2 Hz, 2 kHz, 2...Ch. 33 - The eye is most sensitive to light having a...Ch. 33 - Prob. 36APCh. 33 - You are working as a radio technician. One day,...Ch. 33 - One goal of the Russian space program is to...Ch. 33 - The intensity of solar radiation at the top of the...Ch. 33 - The Earth reflects approximately 38.0% of the...Ch. 33 - Consider a small, spherical particle of radius r...Ch. 33 - Consider a small, spherical particle of radius r...Ch. 33 - Review. A 1.00-m-diameter circular mirror focuses...Ch. 33 - Prob. 44APCh. 33 - Prob. 45APCh. 33 - You may wish to review Sections 16.4 and 16.8 on...Ch. 33 - You are working at NASA, in a division that is...Ch. 33 - Prob. 48APCh. 33 - Prob. 49APCh. 33 - Prob. 50CPCh. 33 - Prob. 51CP
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
- A typical incandescent reading lamp runs at 60W. If it is left on constantly, a) how much energy (in MJ) is consumed per day, and b) what is the weekly cost (in $) if energy is charged at a rate of 12.5 cents per kilowatthour? Write your answer in two (2) decimal placesarrow_forwardSolar panels are rated by their theoretical maximum output capacity. A 2-kW PV panel would theoretically produce 2 kW of electricity at its maximum output (during peak solar radiance). If the average daily peak sun-hours in Philadelphia are approximately 4.0 hr and a rowhome is outfitted with 10 PV panels each having a capacity of 260 W, how much energy (kilowatt x hours) would be generated in one year (in units of kWh/year)?arrow_forwardIn a hydroelectric dam, water falls 30.0 mm and then spins a turbine to generate electricity. You may want to review (Pages 234 - 238) . What is ΔUΔUDeltaU of 1.0 kg of water? Express your answer with the appropriate units. Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 51.0 MWMW of electricity? This is a typical value for a small hydroelectric dam. Express your answer using three decimal places.arrow_forward
- (1) An incandescent light bulb produces 5.85 Joules of light energy each second. This bulb is 7.80% efficient, meaning that only 7.80% the total energy it consumes becomes light and the rest becomes waste heat. A 12.0 W fluorescent bulb is designed to produce the same illumination (in Joules of light energy per second) as the incandescent bulb. A large building uses 17,530 light bulbs. At a cost of 8.56€/kW-hr for electricity, how much money will the owners of the building save each year if they use fluorescent bulbs instead of incandescent bulbs? Express your answer in dollars. [answer: about $828,000]arrow_forwardAstronomers using a 2.0-mm-diameter telescope observe a distant supernova−−an exploding star. The telescope's detector records 7.9 ×10-11 JJ of light energy during the first 10 s. It's known that this type of supernova has a visible-light power output of 6.0 ×1037 W for the first 10 s of the explosion.How distant is the supernova? Give your answer in light years, where one light year is the distance light travels in one year. The speed of light is 3.0 ×108 m/sarrow_forwardIf you follow a diet of 1600 food calories per day (1600 kilocalories), what is your average power consumption in Watts? (A food or "large" calorie is a unit of energy equal to 4.2 ×10³ J.) Note for comparison that the power consumption in a table lamp is typically about 100 Watts.arrow_forward
- A standard computer has a power supply of 550 W, and many people just leave their computer on all thetime. Calculate the amount of money it costs to run a 550 W computer for 24 h, if electricity costs 7.5¢/kWh.arrow_forwardYou are renting a car to take a road trip from Ottawa to Halifax, about 1400 km. The car rental agency will allow you to choose either the gas or electric version of certain car model and the mileage fee is the same for both. If you choose the electric vehicle, you will need to do about 200 km extra driving since you need to stray from the main route to find electric charging stations. Assume the effective energy prices are constant at $0.108/MJ for gas and $0.063/MJ for electric. Further assume that the force due to rolling resistance is 260 N and the force due to air drag is 270 N. What total price in dollars will you pay for energy for each of the car types to overcome just these two forces while making this trip? Question 31 options: $15.12 for gas and $10.08 for electric $80.14 for gas and $53.42 for electric $40.82 for gas and $27.22 for electric $80.14 for gas and $46.75 for electricarrow_forwardA family uses 8 kW of power, (a) Direct solar energy is incident on the horizontal surface at an average rate of 200 W per square meter. If 20% of this energy can be converted to useful electrical energy, how large an area is needed to supply 8 kW? (b) Compare this area to that of the roof of a typical house.arrow_forward
- 1. (a) What is the available energy content, in joules, of a battery that operates a 2.00-W electric clock for 18 months? (b) How long can a battery that can supply 8.00 × 104 J run a pocket calculator that consumes energy at the rate of 1.00 × 10−3 W? 2. Albertine finds herself in a very odd contraption. She sits in a reclining chair, in front of a large, compressed spring. The spring, with spring constant k = 95.0 N/m, is compressed 5.00 m from its equilibrium position, and a glass sits 19.8 m from her outstretched foot. (a) What is Albertine's initial potential energy before the spring is released? (b) Assuming that Albertine's mass is 60.0 kg, for what value of μk, the coefficient of kinetic friction between the chair and the waxed floor, does she just reach the glass without knocking it over? (c) The principle of conservation of energy states that energy is neither created nor destroyed. Describe the transformation of energy in this problem.arrow_forwardA 40 Watts bulb is used for 12.5 hours everyday for 30 days. Calculate the consumption of electrical energy.arrow_forwardMost electrical appliances are rated in watts. Does this rating depend on how long the appliance is on? (When off, it is a zerowatt device.) Explain in terms of the definition of power.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
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author: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
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning