Help me from questions 5 to 8, please? 5) A moving 2 kg object has an initial velocity of 10 m/s. It comes to a stop on a roughsurface after travelling a distance of 5m. Calculate:a) the kinetic energy of the subjectb) the frictional force acting on the objectc) the heat energy produced6) The temperature of 10 kg of a substance rises by 55°C when heated. Calculate thetemperature rise when 22 kg of the substance is heated with the same quantity of heat.7) A 100 W electric heater is used to heat 4 kg of olive oil for 10 minutes. Assuming thatthere is no loss of heat, calculate the temperature rise of the olive oil. The specific heatcapacity of olive oil is 1890 J/kg °C.8) 200 g of hot water at 80 °C is mixed with 100 g of cold water at 20 °C. Calculate the finaltemperature of the water solution.

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5) A moving 2 kg object has an initial velocity of 10 m/s. It comes to a stop on a rough surface after travelling a distance of 5m. Calculate: a) the kinetic energy of the subject b) the frictional force acting on the object c) the heat energy produced

5) A moving 2 kg object has an initial velocity of 10 m/s. It comes to a stop on a rough surface after travelling a distance of 5m. Calculate: a) the kinetic energy of the subject b) the frictional force acting on the object c) the heat energy produced

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter14: Heat And Heat Transfer Methods

Section: Chapter Questions

Problem 20PE: (a) It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil...

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