Peter burns a piece of crispbread to find out how much energy is stored in it. Energy from the burning crispbread raises the temperature of the water in the test-tube. Peter wants to find out if potato crisps contain as much energy as crispbread. He does the experiment again using a piece of potato crisp. Choose two things he must do to make the experiment a fair test
Answers: 1
Physics, 21.06.2019 20:40
The metric unit of electrical power is the watt volt ampere ohm
Answers: 1
Physics, 22.06.2019 02:10
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
Answers: 2
Peter burns a piece of crispbread to find out how much energy is stored in it. Energy from the burni...
History, 19.01.2020 02:31
Mathematics, 19.01.2020 02:31
Mathematics, 19.01.2020 02:31
History, 19.01.2020 02:31
Chemistry, 19.01.2020 02:31
Biology, 19.01.2020 02:31