Answer:
The bubble gum experiment demonstrates the law of conservation of mass in that even though the bubble gum has lost mass, this loss in mass is not because some matter present in the gum has been destroyed, but it has changed form and has been removed from the gum.
Explanation:
In this science experiment, students investigate whether or not chewing gum should be considered eating. During the process of chewing the gum, the gum loses mass. The experiment is used to demonstrate the law of conservation of mass which states that matter can neither be created nor destroyed but may change from one form to another.
The loss in mass of the gum is due to the fact that the sugar present in the gum has changed form and has been removed from the gum. During the process of chewing the gum, the sugar in solid form present in the gum is dissolved in the saliva found in the mouth. The dissolved sugar is then swallowed and passes into the digestive tract for digestion. This shows that even though the bubble gum has lost mass, this loss in mass is not because some matter present in the gum has been destroyed, but it has changed form and has been removed from the gum, This demonstrates the law of conservation of mass.
Answer:
1. A
2. C
3. A
4. B
Explanation:
A conductor allows electric current to pass through it. Hence, when conductors are connected in a closed circuit, current flows.
All the resistors in Q2 are connected in series. In a series connection, the current across all the resistors is the same.
In a battery, chemical energy is converted to electrical energy by chemical reactions.
When a new resistor is connected in parallel to a circuit the current increases accordingly.
~Hello there! ^_^
Your question: What best determines whether a borrower’s interest rate goes up or down?
Your answer: A market's condition best determines whether a borrower's interest rate goes down or up.
Hope this helps~
Hello there..
<span>Which of the following statements is TRUE?
</span>D. Light waves are electromagnetic waves and sound waves are mechanical waves.
This is a <span>John Kanzius Research. </span>Radiofrequency Ablation (RFA) which is a type of Electrical Energy is used to treat cancer. It u<span>ses heat made by </span>radio waves<span> to kill </span>cancer<span> cells. Ablation means destroying completely. The method is putting RFA a probe (electrode) that goes through the skin into the tumour. A</span> CT scan is needed so to check that the probe is in exactly the right place. An electrode in the probe creates radiofrequency energy to produce heat and kill the cancer cells.
