Large meteors sometimes strike the Earth, converting most of their kinetic energy into thermal energy. (a) What is the kinetic energy of a 109 kg meteor moving at 25.0 km/s? (b) If this meteor lands in a deep ocean and 80% of its kinetic energy goes into heating water, how many kilograms of water could it raise by 5.0°C?

Q: The highest recorded waterfall in the world is found at Angel Falls in Venezuela. Its longest single…

A: Given:- Height(h)= 807m Initial temperature(Ti)=15.9°C specific heat of water(C)=4186 J/kg°C

Q: The average temperature of the atmosphere has increased by 0.4°C over the last thirty years.…

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Q: The human body, while at rest, produces heat energy at a rate of about 117 W. How much sweat (in g)…

A: The heat energy evaporated  per minute is,   Q=Qt˙=117 W1 minute60 s1 minute=7020 J

Q: An ice cube at 0 degrees C is dropped into a container with 0.5 kg of water at 20° C. The specific…

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Q: A 4​-kilogram​[kg] projectile traveling at 120 meters per second​ [m/s] is stopped by being shot…

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Q: A crate of fruit with a mass of 31.0 kg and a specific heat capacity of 3600j/(kgxk) slides 8.40m…

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A: Given Data:The initial temperature of the gas inside the balloon is The initial pressure is The…

Q: Following vigorous exercise, the body temperature of an 80.0-kg person is 40.0ºC . At what rate in…

A: The amount of heat transfer is given as, Here, m, c and ΔT represent the person’s mass, the…

Q: 9.3°C . At what rate in watts must the person transfer thermal energy to reduce the the body…

A: Given Mass of person m =60 kg Body initial temperature = 39.3 0 C FFinal temperature = 370 C TTime…

Q: Suppose that the average U.S. household uses 14600 kWh14600 kWh (kilowatt‑hours) of energy in a…

A: Given: mass of car mc = 1470kg            height lifted hc =11.3m            energy E = 14600 KWh…

Q: A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the…

A: According to the given data Block velocity = v = 2.70m/s Block mass = m =3.30kg Block absorbed 75%…

Q: According to the USDA, an average, \moderately active" college student needs to eat 2500 calories…

A:

Q: If you push a 60 kg box along a flat surface with coefficient of kinetic friction of 0.250 and it…

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Q: Consider a room that is initially at the outdoor temperature of 20 C. The room contains a 60-W light…

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Q: A 46-kg woman eats a 522 Calorie (522 kcal) jelly doughnut for breakfast. (a) How many joules of…

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Q: Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER)…

A: Temperature inside = 24∘ C = 24 +273 K =297 K Temperature outside =35∘C=35+273K =308 K To find SEER…

Q: When someone has a fever, his or her body temperature might increase by as much as 2°C. Suppose this…

A: The given values are, ΔT=2° Cm=48 kg

Q: A student is trying to decide what to wear.His bedroom is at 20.0 degrees Celcius.His skin…

A: The net rate of transfer of energy from the skin is

Q: The average temperature of the atmosphere has increased by 0.4°C over the last thirty years.…

A:

Q: A pronghorn antelope can run at a remarkable 18 m/s for up to 10 minutes, almost triple the speed…

A: Given data *The power required is Pr = 3.4 kW = 3.4 × 103 W *The efficiency of the pronghorn is η =…

Q: A swimming pool filled with water has dimensions of 4.76 m ✕ 10.2 m ✕ 1.70 m. Water has density ρ =…

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Q: The area-average mass of the upper one third of the ocean is about 1x106 kg/m2. The energy required…

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Q: Large meteors sometimes strike the Earth, converting most of their kinetic energy into thermal…

A: Energy When objects are in motion and comes in contact with another object, it transfers a…

Q: How much heat transfer is required to raise the temperature of a 800 g aluminum pot containing 2000…

A: Given data: Mass of aluminum (mAl) = 800 g Mass of water (mw) = 2000 g Initial temperature of the…

Q: The human body, while at rest, produces heat energy at a rate of about 116 W. How much sweat (in g)…

A: Given data The heat energy is given as Q˙=116 W. The latent heat of vaporisation is given as Lv =…

Q: Two liters of orange juice at T1 = 22.5C is placed in a refrigerator. If energy is removed from the…

A: The orange juice is initially at a temperature of 22.5o C. Energy is being constantly removed from…

Q: The Curiosity rover landed on Mars on August​ 6, 2012, and is currently exploring the surface.…

A: Calculate the efficiency of the curiosity RTG.

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Q: A cup of hot coffee sits on your desk. Assume that the thermal energy in the coffee can be converted…

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Q: An electric heater transfers 8.90 ✕ 105 J into a block of ice with a mass of 2.16 kg and an initial…

A: Let the mass of the ice be m, the heat supplied by the electric heater be Q, and the latent heat of…

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.