Answered: (1a). Figure shows a person is warming…

(1a). Figure shows a person is warming his hands over the fire. Explain in detail how the heat transfers from fire to hands. What is the name of this method? (2 marks) Fire

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter15: Thermodynamics

Section: Chapter Questions

Problem 21CQ: Can improved engineering and materials be employed in heat engines to reduce heat transfer into the...

See similar textbooks

Related questions

Q: The sum of the kinetic and potential energies of a system's atoms and molecules calculates the blank...

A: To identify : The sum of kinetic and potential energies of system's atoms and molecules

Q: In opening a door, a 35.8 N force is applied as shown in the figure below. Find the torque produced ...

Q: An 80-kg man balances the boy on a teeter-totter as shown. Note: ignore the weight of the board. Sol...

Q: A particle moving in x-y plane has acceleration vector (VE,) for all t2 0. The particle is at rest a...

Q: An 80-kg man balances the boy on a teeter-totter as shown. Note: Ignore the weight of the board. Sol...

A: For equilibrium net torque and net force should be zero. Torque = force×r r =perpendicular distance ...

Q: Traveling with an initial speed of 70 kph, a car accelerates at 6000 km/m2 along a straight road. Ho...

Q: Which of the following scenarios describe/s an object in equilibrium? I. an iPhone 6S falling off a ...

A: We know that , Equilibrium is obtained when net force(sum of all forces ) on an object is zero. Ther...

Q: figure shown a motor pulling an object in an in clined surface. Determine the power required to move...

A: Since object is moving with constant velocity acceleration must be zero hence forces along horizonta...

Q: rticle movi edge uniform solid cylinder. The cylinder is free to rotate about the axis through its c...

Q: batman is fighting robin in china. Batman climbs a tall building and while standing on the top of th...

A: Given that:- Mass of Batman=9.6×10^3 kg Mass of Robin=3.1×10^3 kg

Q: 7. In below figure, the moment of a certain force F is 182.5 ft-lb clockwise about O and 97.5 ft-lb ...

Q: (a) Find the work done by the force on the particle as it moves from x = 0 to x = 2.00 m. (b) Find t...

Q: 3. Determine the magnitude and direction of the force F of the hand on the forehead in order that th...

A: Draw the free-body diagram of the system.

Q: A car is moving at 20 m/s along a horizontal road has its brakes suddenly applied and eventually com...

Q: When two objects collide and one of them is originally at rest, it is possible that both objects wil...

A: When two objects collide and one of them is originally at rest, that means other object is moving, I...

Q: A laser beam having a diameter D in air strikes a piece of glass (n) at an angle 6. What is the diam...

Q: 4. A car with constant acceleration travels 23.7 ft during the 10th second of its motion and 16.2 ft...

A: Given value --- S10 = 23.7 ft. S12 = 16.2 ft. We have to find--- initial velocity?

Q: man inside the elevator stands in a weighing scale and weighs 120 N when stationary. What will be it...

A: According to Newton's second law Net force F = ma

Q: Which of the circuits shown in Figure 5 has a larger current? R R R 3.3 kn 3.9 kl 4.7 k 50 V 75 V 10...

A: Given Three circuit (a), (b) and (c) are as shown in the figure. All circuit have different voltage ...

Q: 2. Calculate the number of millimoles contained in 500 mg of each of the following substances: (a) B...

Q: A runner covers a distance of 15.0 m in 6 s to move from x = 0 to x = 4.0 m. What is the average spe...

A: 2.50 m/s is right ans.

Q: How do you define straight lines at a 105-degree angle that are nearly horizontal? i. inclination t...

A: How do you define straight lines at a 105-degree angle that are nearly horizontal?

Q: In an experiment, you will drop a 0.1 kg egg from a height of 10 m. How much energy is present in th...

Q: ne walls of living cells have surprisingly large electric fields across them due to separation of io...

A: thickness d= 8.0nm = 8.0*10-9 m Electric field E= 5.50 MV/m = 5.50*106 V/m

Q: At some point, not close to its ends, within a solenoid of arbitrary length, calculate the approxima...

Q: The intrinsic conductivity of pure silicon at 20°C is 5x10-4 / m (very low) and the band-gap energy ...

Q: Point A lies along the x-axis at the 25.0 cm mark. Point B is located -10.0 cm on the x-axis and 10....

A: Given: The location of point A is x = 25 cm. The location of the point B is x = -10 cm and y = 10 cm...

Q: A rocket is fired with muzzle velocity of 95 m/s at an angle of elevation = 38°. Gravity = 9.81 m/s2...

Q: The mass of a 3.0-kg object is measured when the object is completely submerged in water. The readin...

A: Given: The mass of the object is 3 kg. The apparent mass inside the liquid is 2.6 kg.

Q: 2. Consider the charge configuration as shown below. Calculate the electric field at point A. 92 =+1...

A: According to question we need to find net electric field at point A

Q: 8. Compute the mass of the Earth, assuming it to be sphere of radius 6378km. Give your answer to thr...

Q: Entropy states that a system tends towards (There are two correct answers, pick both of them)

A: Entropy is measure of disorder and tendency towards disorder requires energy.

Q: The position vs time graph shows the motion of a particle in one dimension. At what point on the gra...

A: Slope of the position vs time graph gives the velocity. In case of a curve, slope of the tangent dra...

Q: 4. A rod is L meters long and the center of mass of the rod is at the point L meters from the left e...

A: Given that:- Linear density at a point is proportional to a power of the distance of a point from th...

Q: A Campbell's tomato soup has a density of 1.05 g/cm³. How many grams of soup are in 5.00 × 10-2 m³ o...

Q: 3.10 As shown, an air space above a long tube is pressurized to 50 kPa vacuum. Water (15°C) from a r...

Q: A. Use the illustration below and calculator to fill the data below. = 90 E e () e (rad) O (# lines ...

A: (θ) ° (θ) rad ΦE 0 0 EA 60 π/3 EA/2 90 π/2 0

Q: 3.13If a 200 N force F, is applied to the piston with the 4 cm di- ameter, what is the magnitude of ...

A: Given that:F1=200 Nd1=4 cm=0.04 md2=10 cm=0.1m∆h=2 m

Q: Consider the circuit shown in the figure below. (Assume R, 13.5 N and R, 7.50 Ω.) b 25.0 V R2 R2 R E...

A: Given : R1=13.5 Ω R2=7.50 Ω

Q: (a). Give the physical significance of Divergence and Curl with required example. (b). Find the Curl...

Q: a) Calculate the area of a simple parallel-plate 5F capacitor. Assume that the plates are separated ...

A: a simple parallel-plate 5F capacitor plates are separated by air with a distance of 2.0x 10-5 m a 6...

Q: The total mass of a rod 2 meters long is 18 kg. If the linear density varies directly as the cube of...

Q: What is the minimum energy that will allow electrons to be ejected from a metal surface during the p...

A: In first question, we need to answer what is known as minimum energy that will allow electrons to be...

Q: Your absent-minded instructor accidentally placed a 15.0-kg box on top of a frictionless incline. Th...

Q: A certain force gives an object of mass m, an acceleration of 12.0 m/s? and an object of mass m2 an ...

A: Given for mass m1, acceleration (a1)= 12 m/s² Given for mass m2, acceleration (a2)= 3.3 m/s² We know...

Q: A 600 cm X 1760 cm house is built on a 13.2 cm thick concrete slab of thermal conductivity 0.66 W/m....

Q: The work done in shifting a proton between two points parallel along a uniform E field is? positive...

A: The work done in shifting a proton between two points parallel along a uniform E field is?

Q: A converging lens (f1 = 11.7 cm) is located 27.0 cm to the left of a diverging lens (f2 = -5.58 cm)....

Q: A +95uC point charge moves from point A to point B. That magnitude of the electric field is 50 x 10^...

Q: As a diligent physics student, you carry out physics experiments at every opportunity. At this oppor...

Concept explainers

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.

Question

(1a). Figure shows a person is warming his hands over the fire. Explain in detail how the
heat transfers from fire to hands. What is the name of this method?
(2 marks)
O O D v

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

If the refrigerator door is left what happens to the temperature of the kitchen?
In performing 100.0 J of work, an engine discharges 50.0 J of heat. What is the efficiency of the engine?
Why don't we operate ocean liners by extracting heat from the ocean or operate airplanes by extracting heat from the atmosphere?
When heal transfers into a system, is the energy stored as heat? Explain briefly.
A firewalker runs across a bed of hot coals without sustaining burns. Calculate the heat transferred by conduction into the sole of one foot of a firewalker given that the bottom of the foot is a 3.00-mm-thick callus with a conductivity at the low end of the range for wood and its density is 300 kg/m3. The area of contact is 25.0 cm2 the temperature of the coals is 700 , and the time in contact is 1.00 s. Ignore the evaporative cooling of sweat.
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per nub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warned is only 0.100 kg, mostly in the palms and fingers.
The brakes in a car increase in temperature by T when bringing the car to rest from a speed v. How much greater would T be if the car initially had twice the speed? You may assume the car stops fast enough that no heat transfers out of the brakes.
How can an object transfer heat if the object does not possess a discrete quantity of heat?
Discuss the practical advantages and disadvantages of heat pumps and electric heating.
In a study of healthy young men[1], doing 20 push-ups in 1 minute burned an amount of energy per kg that for a 70.0-kg man corresponds to 8.06 calories (kcal). How much would a 70.0-kg man's temperature rise if he did not lose any heat during that time?
Can improved engineering and materials be employed in heat engines to reduce heat transfer into the environment? Can they eliminate heat transfer into the environment entirely?
Calculate the increase in entropy of the Universe when you add 20.0 g of 5.00C cream to 200 g of 60.0C coffee. Assume that the specific heats of cream and coffee are both 4.20J/g C.