7. A 45.0-kg block of ice at 0°C is sliding on a horizontal surface. The initial speed of the ice is 7.30 m/s and the final speed is 3.30 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice. Determine the mass of ice that melts into water at 0°C. grams 60 ss

7. A 45.0-kg block of ice at 0°C is sliding on a horizontal surface. The initial speed of the ice is 7.30 m/s and the final speed is 3.30 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice. Determine the mass of ice that melts into water at 0°C. grams 60 ss

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)...

See similar textbooks

Similar questions

What is the specific heat of an 800g unknown substance whose temperature changes by 78◦C after absorbing 1000 calories of heat? a. 0.016 cal/g◦C b. 0.016 J/g◦C c. 62,400 J/kg◦C
5 In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phone in the freezer to -31.7ºC. They then drop it into a calorimeter with some water in it that is at a temperature of 50.8ºC. The calorimeter (including the water) has a total heat capacity of 869.42 J/ºC. After a few minutes the temperature of the calorimeter is stabilized to 31ºC. What is the heat capacity of the phone? Enter your answer with at least 3 sig figs assuming units of J/ºC.
1. Will dumping heat into a system necessarily raise the temperature of the system? Explain. A gold pillar has a height of 3.00m when the temperature is -20.0°C. How much is the change in the height of the pillar when the temperature is +20.0°C? (See the equation 2. sheet for the properties of gold.)
A0.23 kg metal block with an initial temperature of 38.1°C is dropped into a container holding 2.5 kg of water at14 °C. The final temperature of the block-water system is 23.4 °C. Assuming no heat exchange with surroundings, find how much energy is released by 1 Kg of the metal when the temperature is decreased by 1 C ?
2
What is the amount of heat energy absorbed by a copper of mass 300g if its temperature raises by 12°C. (specific heat of copper is 390J/kg°C) Oa.2.37x103J O b.16.7x10 5J OC3.56x106J Od. 1404J
0 F2 W S 9. A 44.0-kg block of ice at 0°C is sliding on a horizontal surface. The initial speed of the ice is 7.80 m/s and the final speed is 4.00 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice. Determine the mass of ice that melts into water at 0°C. grams #3 3 X 20 F3 E D ASA $ C 200 F4 R F er de % 5 V F5 T G MacBook Air B ... F6 Y & 7 H F7 U N CO * 8 J DIL F8 - M 9 K F9 O V O H F10 PEL 000 Р C I F11 + F12 ?
9. The rod below with the cross section surface area of 0.12 m² is laterally insulated. The rod has a thermal conduction constant of 100 W/m.°C. If the temperature along the rod changes according to the function T=ax²+b, develop a model to find the heat which is transferred through the rod? 1 X=0 T=70 °C Heat flow X=2m T=30 °C X
A 60.0-kg runner expends 359 W of power while running a marathon. Assuming 12.5% of the energy is delivered to the muscle tissue and that the excess energy is removed from the body by sweating, determine the volume of bodily fluid (assume it is water) lost per hour. (At 37.0°C the latent heat of vaporization of water is 2.41 ✕ 106 J/kg.) cm3
H78
5. A 0.400-kg of ice is initially at temperature of -12.0 °C. How much heat is required to melt two-third the mass of the ice only? J
L; of water: 3.3 x 105 J / kg Ly of water: 2.3 x 106 J/ kg Q1. Calculate the energy transferred to 2.3 kg of ice to cause it to melt completely. Q2. 930 g of water is heated at boiling point until it evaporates completely. Calculate the energy transferred to cause it to evaporate.