A kettle is used to increase the temperature of 0.25 L of water by 5 degrees Celsius, and the time taken for the temperature to change is measured three times. The same kettle is used to increase the temperature of 045 L of water by 50 degrees Celsius. Again, three measurements are made. The
measured results are shown in the table. Which of the two sets of results is more precise?
Volume of Water (L) Time (6Time Time (6)
0.25
15.5 15.2 15.9
0.45
45.1 44.9 45.4
A. The measurements of the heating time of the 045 L volume of water are more precise,
B. The measurements of the heating time of both volumes of water are equally precise
C. The measurements of the heating time of the 0.25 L volume of water are more preciso

because if the tool that you are using is not balanced it there would be false mass.

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.