I ride my bike down a hill that is a distance of 31 meters, the hill has an incline of 32°.  I generally brake at least a little bit as I go down the hill.  If I start from rest and end at 10meters/second, How much energy was released as heat? The total mass of me and the bicycle is 87kg.

Q: A fire is lit in a hot air balloon, causing 100 J of heat to flow into the air in the balloon.…

A: The change in internal energy is given by, ∆U=Q-W

Q: 2. A worker drives a 0.500 kg spike into a rail tie with a 2.50 kg sledgeham- mer. The hammer hits…

A:

Q: I have 500g of water at 25oC. If the amount of heat required to raise the temperature of this water…

A: Given data:Mass of the water, m = 500 g = 0.5 kgThe specific heat of water, C = 4.186 joule/gram…

Q: While riding his bicycle, Jans does 7.5 E7 J of work and gives off 4.3 E7 J of heat. What is the…

A: Given Data:Work done Heat released To Determine:The change in the internal energy of the person.

Q: How much energy would you consume daily if you kept a lightbulb of 20 watts on all day long?

A: A lightbulb is rated as 20 Watt which is indicating the power of the bulb.  P = E/t  Power is…

Q: An engineer on Mars operates a motor that loses 45 kilojoules [kJ] of energy as heat in 20 minutes…

A:

Q: After you drive for a while your tires will gain some energy via friction and heat up. If the air…

A: Given  Heat added Q=150J  Work done by gas W=100J

Q: You need to carry 40 pound bags of soil from the terrace level up to a greenhouse. The elevator is…

A: 1 pound = 0.454 kgMass of soil bag M = 50 pounds                                    = 50 × 0.454…

Q: A heat engine uses two containers held at different temperatures. One container is at 294 K, while…

A:

Q: In outer space a rock with mass 6 kg, and velocity m/s, struck a rock with mass 17 kg and velocity…

A:

Q: Rocky spends all the afternoon hours watching sports on cable TV. In the process, he does 1118 J of…

A: Rocky spends all the afternoon hours watching sports on cable TV. In the process, he does 1118 J of…

Q: One mole of helium atoms has a mass of 4 grams. If a helium atom in a balloon has a kinetic energy…

A:

Q: A3.5 kg mass is sliding across a horizontal table at an initial speed of 6.8 m/s before friction…

A:

Q: That same 0.005 kg is dropped off of the top of the Empire State building, which is about 443 meters…

A: Answer:   Given data: Mass (m) = 0.005 KgHeight (h)=443 mFinal Velocity (v)= 5.28 m/sInitial…

Q: Rubbing your hands together warms them by converting work into thermal energy. a. If a woman rubs…

A: The objective of this question is to calculate the temperature increase of a woman's hands after she…

Q: The internal energy of a system is initially 24 J. The system does 25 J of work. What is the…

A: Given data:  Initial internal energy (Ui) = 24 J Work done by the system (W) = 25 J Heat added to…

Q: toaster heater is heated up to a temperature of 584 degrees C. The emissivity of the toaster heater…

A:

Q: Frosty the Snowman’s magic hat keeps him at a comfortable temperature of -8°C. However, a nearby…

A: Given: The initial temperature of the ice is T=-8 oC. The final temperature of the ice is T=0 oC.…

Q: A solid sphere has a temperature of 827 K. The sphere is melted down and recast into a cube that has…

A: According to Stefan-Boltzmann law, the expression for the power of radiation is:whereis the…

Q: A PHYS 1510 student was working on a robotics project. The joints on the machine they were building…

A:

Q: An ice cube has a mass of 66 g and is initially at a temperature of 0°C . The ice cube is heated…

A: mass of ice = 66 g initial temperature = 0 degree C Final temperature = 100 degree C mass of boiling…

Q: In an industrial chemical process, 600 J of heat is supplied to a system while 200 J of work is done…

A:

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: Consider the change in the internal energy of a system.  what is the change in the internal…

A: Given data: The work done by the system, δW=4.75×105 J   The heat supply to the system, δQ1=3.05×106…

Q: 3.5x10^7 J of heat transfers into an engine. If 2.1x10^7 J of work is performed what is the…

A:

Q: how much energy required to melt 5 g of ice if you know that the potential heat of melting ice is…

A: Given data:  Mass of ice (m) = 5 g = 0.005 kg Potential heat of melting ice (Lice ) = 354000 J/kg

Q: 28 J of heat energy is transferred into an ideal gas and 48 J of work is done on the gas. What is…

A:

Q: A gas is compressed inside a cylinder with an average force of 40 N acts to move the piston 0.20 m.…

A:

Q: A certain coal-fired power plant has a rated power capacity of P = 850 MW. The output of this plant…

A: Given that :- Power capacity , P=850 MW  Output , W=0.26Q11

Q: An air-filled cylinder with a movable piston has a heat reservoir in contact with it. The heat…

A: GivenEnergy transfer into the cylinder (∆Q) = 850 JWork done by the piston on the environment (∆W) =…

Q: A certain sandwich cookie contains 55 C of nutritional energy. A) For what amount of time must you…

A: Approach to solving the question:Please see attached photos for detailed solutions. Thank…

Q: Rubbing your hands together warms them by converting work into thermal energy. a. If a woman rubs…

A: The objective of this question is to find out the temperature increase of the woman's hands after…

Q: Frosty the Snowman’s magic hat keeps him at a comfortable temperature of -11°C. However, a nearby…

A:

Q: 250 students sit in an auditorium listening to a physics lecture. Because they are thinking hard,…

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.