1.The temperature of a sample of iron with a mass of 10.0 g changed from 50.4°C to 25.0°C with the release of 47 J of heat. What is the specific heat of iron?
2.A 200-g sample of an unknown object is heated using 100 J such that its temperature rises from 2°C to 4’C. What is the specific heat of this unknown object?
3. A 500 gram cube of lead is heated from 25 °C to 75 °C. How much energy was required to heat the lead? The specific heat of lead is 0.129 J/g°C.
4. A glass of water of mass 400 g is heated using an electric heater for 3 minutes . The temperature change of the water is from 50C to 120C when 500J of energy is supplied to it. Find the specific heat capacity of water and also find the power of the heater.
Answer fast to get 20 points!!
Answers: 3
Other questions on the subject: Physics
Physics, 22.06.2019 00:30, torrejes241
In positive numbers less than 1, the zeros between the decimal point and non zero are significant
Answers: 2
Physics, 22.06.2019 01:00, muhammadcorley123456
4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that
Answers: 1
Physics, 22.06.2019 03:00, alexanderavrett
Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.
Answers: 2
Physics, 22.06.2019 04:00, katieleeisaacs8368
Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?
Answers: 1
Do you know the correct answer?
1.The temperature of a sample of iron with a mass of 10.0 g changed from 50.4°C to 25.0°C with the r...
Questions in other subjects:
Mathematics, 29.09.2020 22:01
