59. In a typical squash game (Fig. 14–21), two people hit a softrubber ball at a wall. Assume that the ball hits the wall at avelocity of 22 m/s and bounces back at a velocity of 12 m/s,and that the kinetic energy lost in the process heats the ball.What will be the temperature increase of the ball after onebounce? (The specific heat of rubber is about 1200 J/kg•C°.)FIGURE 14-21Problem 59.

The loss in kinetic energy of the ball can be given by, KE=12mv2.............(1) Where, m = mass of…

Answered: 59. In a typical squash game (Fig.…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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#12. (14) A hot metal block in the shape of a cube whose edge has length 12 cm is at temperature 600 K. At what net rate does it radiate heat when it is placed in air at temperature 300 K? Assume perfect emissivity.
(g) A thin, 1.44-kg slab of copper at 18.0°C is set sliding at 2.90 m/s over an identical stationary slab at the same temperature. Friction quickly stops the motion. Assuming no energy is transferred to the environment by heat, find the change in temperature of both objects. (Assume the specific heat of copper is 387 J/kg · °C.) ΔΤ. sliding slab The correct answer is not zero.°C ΔΤ. stationary slab The correct answer is not zero.°C (h) Evaluate Q and AE, int for the sliding slab and AE, 'mech for the two-slab system. ΔΕ , int ΔΕ. mech (i) Evaluate Q and AE, int for the stationary slab. ΔΕ. int
ii) Compute the total heat required to convert 0.19 Kg of ice at -190°C to steam at 190 °C. (Cice = 2090 J/kg.°C, Cwater = 4186 J/kg.°C, Csteam = 2010 J/kg.°C, Lf = 3.33 x 105 J/kg, Ly = 2.26 × 10 J/kg.)
ii) Compute the total heat required to convert 0.125 Kg of ice at –125°C to steam at 125 °C. (Cice = 2090 J/kg.°C, Cwater = 4186 J/kg.°C, Csteam = 2010 J/kg.°C, Lf = 3.33 × 10$ J/kg, L, = 2.26 × 106 J/kg.)
How much heat energy must be removed from 0.10 kg of oxygen with a temperature of 22 °C in order for the oxygen to liquefy at -183 °C? (Co = 913 J/kg°C, Ly = 2.13 x 105 J/kg and oxygen liquefies as -183 °C) O 5 x 10^4 J O 9 x 10^4 J O 1 x 10^4 J O 4 x 10^4J
1) The walls of a house are 11 cm thick and have an average thermal conductivity two times that of cork. The walls' surface area is 850000 cm2 and their inside surface is at 18°C, while their outside surface is at 4°C. (Thermal conductivity of cork is 0.036 W/m°C). Calculate, (i) The rate of heat conduction through house walls in Watts: (1) Amount of heat conducted in Joules, in 5 min: 2) A spherical infrared heater of radius 6.5 cm and an emissivity of 0.82 radiates 0.48 kW of power. Given, Stefan's constant = 5.67x10 Wm K Calculate, Temperature of the heater in Celsius: 1) A 275-turns square loop of 34 cm on a side, carrying a current of 22 A creates a torque of 385 N m when the plane of the coil makes an angle 38° with the magnetic field.
1. (a) How much heat transfer is necessary to raise the temperature of a 0.26 -kg piece of ice from -20 °C to 130 °C, including the 20 kJ/s energy needed for phase changes? Specific heat of ice = 2.090 kJ/kg °C Specific heat of water = 4.186 kJ/kg °C Specific heat of steam = 1.520 kJ/kg °C Heat of fusion of water = 334 kJ/kg Heat of vaporization = 2256 kJ/kg (i) Heat needed to warm ice to 0 °C: Q₁: ✔KJ (ii) Heat needed to melt ice at 0 °C: Q₂: KJ (iii) Heat required to warm 0 °C water to 100 °C: Q3: KJ (iv) Heat required to vaporize water at 100 °C: Q4: KJ (v) Heat required to warm 100 °C vapor to 130 °C: Q5: KJ Total heat, Q: KJ (b) How much time is required for the entire process, assuming a constant 20.0 kJ/s rate of heat transfer? Total time, t: S
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שפיי יוון 6:58 PM | 18.9KB/s ●●● expert.chegg.com/exă Shur 3w/ Question 3 How much heat is required to convert 25.4 g of liquid water (H2O) at 85°C to steam at 135° C? The specific heat capacity for liquid water is 4.18 1/g "C. for steam is 2.01 J/g-C. and the enthalpy of vaporization is 40.7 kJ/mol. Report your answer in kl.
(9) A metal rod made of some alloy is to be used as a thermometer. At OoC its length is 40000cm, and at 1000C its length is 40060cm. (a) What is the linear expansion coefficient of the alloy? (b) what is the temperature when its length is 39975cm? (40)

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