A geothermal heating system is installed outside a house by laying pipes underground, as shown in the image. The heat is transferred from the ground to the pipes to keep the house warm. How does this system of heating the house reduce the impact on the natural environment? A by providing energy to the ground B by conserving underground energy C by using a sustainable source of energy D by transforming one form of energy to another

Q: Judy exercises for 15 minutes and uses up 185 kJ of energy. Her efficiency of pedaling is 35% A.…

A: The efficiency of pedaling is calculated as the ratio of output energy to the input energy, that is…

Q: (a) A shirtless rider under a circus tent feels the heat radiating from the sunlit portion of the…

A:

Q: The following figure shows a system and its environment. In figure a, the system gains 1500 J of…

A: Given data: Part a- Heat gained from the surrounding is, Q1=1500 J. Work done by the system is,…

Q: 1.An electric kettle transfers 900 000 J of energy to some water in 10 minutes. (a) Estimate the…

A:

Q: (a) If you want to construct a wind turbine in a location where taller structures are prohibited,…

A: 1. First of all we have to understand the turbine and the types of the turbines.   The turbine is a…

Q: 27. This problem compares the energy output and heat transfer to the environment by two different…

A: In the diagram, QS and QR is the heat supplied and heat rejected form the power stations…

Q: A 55.0-kg woman eats a 540 Calorie (540 kcal) jelly doughnut for breakfast. (a) How many joules of…

A:

Q: A 46-kg woman cheats on her diet and eats a 685-Calorie (685 kcal) jelly doughnut for breakfast.…

A:

Q: Wind energy is becoming more common form of energy that can be used to run household appliances. a.…

A:

Q: A person does work, WP = 750 Joules, to pull a 12.0 kilogram sled with a force of FP = 100 Newtons…

A: (a) Apply work-energy theorem on the sled, from point A to point B, and solve for the displacement…

Q: (a) Calculate the power per square meter reaching Earth’s upper atmosphere from the Sun. (Take the…

A:

Q: a) A 950 joule of heat energy is transferred to 34 gram of mercury. By how much does the temperature…

A:

Q: (a) A shirtless rider under a circus tent feels the heat radiating from the sunlit portion of the…

A: (a) The formula for the radiation rate from Stefan’s law is: Convert the temperature from degree…

Q: (a) If you want to construct a wind turbine in a location where taller structures are prohibited,…

A: a)There are two basic types of wind turbines: Horizontal-axis wind turbines Vertical-axis wind…

Q: Why its it important, when building a terrarium, to use a clear container, such as glass? (a) so…

A: We use clear glass to build a terrarium. Terrarium is a closed glass container use to grow plants.…

Q: A refrigerator does 20 kJ of work while moving 105kJ of thermal energy from inside the refrigerator…

A: Given  Work Done W = 20 kJ thermal energy inside the refrigerator QL = 105 kJ we have to find out…

Q: A gasoline engine has a power output of 170 kWkW (about 228 hphp ). Its thermal efficiency is 29.0%.…

A: Write the given values with the suitable variables. P=170 kW=170×103 J/sη=29%=0.29 Here, P is the…

Q: A 55-kg student eats a 540-Calorie (540 kcal) jelly doughnut for breakfast. (a)  How many joules of…

A: a)The required energy is,

Q: Identify the type of energy transferred to your body in each of the following as either internal…

A: Energy is transferred from one body to other as heat transfer, doing some work, or by the change in…

Q: (a) The number of kilocalories in food is determined by calorimetry techniques in which the food is…

A:

Q: A 60 kg woman cheats on her diet and eats a 493 Calorie (493 kcal) jelly donut for breakfast. (a)…

A:

Q: a) A 650 joule of heat energy is transferred to 46 gram of mercury. By how much does the temperature…

A: a) Q = 650 J , m = 46 gram , c = 0.0334 cal/g°C = 0.0334 x 4.184 = 0.1397 J/g°C Q = mc∆T Therefore,…

Q: Energy conservation experts estimate that homeowners can save 5% to 10% on winter heating bills by…

A: Given graph is represented as,  Scale: Y-axis → Temperature ( °F)  X-axis →Time (hours)  From graph…

Q: 3. A horizontal-axis wind turbine with a 20m diameter rotor is 30% efficient in 10 m/s winds at 1…

A: The power P (in W) produced is given by                                 P=(1/2)ηρAv3…

Q: ) find the total change in thermal energy involved in changing 4.55 L of water at 75.0oC to ice at…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1. What is NOT true about fire safety precautions? A. Avoid anything that would cause a fire around…

A: Please see the answers below.

Q: A Moving to the next question prevents changes to this answer. Question 27 "If two objects with…

A:

Q: (a) Calculate the power per square meter reaching Earth’s upper atmosphere from the Sun. (Take the…

A:

Q: Q4 A suggestion for renewable energy generation is to use the temperature differences in the ocean…

A: The temp. difference b/w the warm surface and cold surface help to harness the Ocean Energy. Tropics…

Q: B. There are (3) kinds of heat transfers happening in this picture. Explain which arrows demonstrate…

A: From the given figure we can observe that the heat is transfer  Orange arrows: Here the heat…

Q: The food calorie, equal to 4186 J, is a measure of how much energy is released when food is…

A: (a) The change in gravitational potential energy of the person is obtained as; ΔU=mgΔym is the mass…

Q: (a) If you want to construct a wind turbine in a location where taller structures are prohibited,…

A: For the location where taller structures are prohibited, Vertical axis type of wind turbine is…

Q: Over the course of a day, 4.0 kg of water evaporates from the leaves of a corn plant.a. How much…

A:

Q: D. Thermal Energy is the energy a system has because of the temperature it is at. At the moment, we…

A: Given:  Mass of the block = m = 5 kg Coefficient of kinetic friction = 0.2 Inclination of the ramp =…

Q: Explain with examples by making three separate definitions of the second law of thermodynamics. (B)…

A: Second law of Thermodynamics: Definition 1: The Kelvin plank statement: "It is impossible for any…

Q: After eating a 200 g pottle of yoghurt, a person decides to go for a run to burn off the extra…

A: Given, Energy provided by the yoghurt = 5.4MJkg-1

Q: Heating The amount of chemical potential energy stored in one gallon of heating oil is approximately…

A: 1 kW h = 1 kW x 1 hour = 1000 W x 3600 s = 3.6 x 106 J = 3.6 MJ

Q: 1. A 55 kg child on a water slide passes point A at 8.3 m/s. As the child travels from A to B, 3,600…

A: Cfff

Q: a) Calculate the energy needed for this heating process. b) Calculate what volume change the water…

A: Given, The capacity of the hot water cylinder=200L=200kg T1=180C, T2=600C ∆T=T2-T1=60-18=420C…

Q: In a certain time interval, natural gas with energy content of 24000 J was piped into a house during…

A:

Q: At the end of a 15 -min session on a stationary bike at the gym, the bike's display indicates that…

A:

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.