The reason there is a difference between the mass of the candle before and after burning is that <u>C. Some of the </u><u>candle wax </u><u>was </u><u>converted </u><u>into</u><u> light energy. </u>
When a candle is being burnt, the candle wax acts as a fuel for the fire. This wax is burnt by the fire such that heat and light energy are formed. The candle wax was therefore converted from chemical energy to light energy.
The other options are wrong because:
- Gases escaping won't reduce mass of candle
- Masses were not the same after the candle was burnt
- The law of conservation of mass still applies but the mass simply transferred to another form
In conclusion, the mass of the candle changed because some of the wax was converted to light energy.
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Answer:
a.
dhiki is a Nepali traditional rice beater in nepal village . the manual wooden thersher . dhikki is made of woods and work like a lever , but it insted use for gridding ..... it is a local technology in a nepal .
b.
different my many different culture around the world, winnowing tray are essential design for yes on winnowing on agriculture method use to seprate grains from other plant material chaff.
Answer:
a. Continuous reinforcement schedule (CRF)
Explanation:
Under DRA(differential reinforcement alternative), behaviour that is an accepted alternative to problem behaviour is accepted and reinforced. This reinforcement frequency correctly falls under continuous reinforcement schedule(CRF) where behaviour is reinforced everytime there is a correct response. For example, if you were teaching a child to pronounce certain words correctly, you would reward the child everytime he got a pronunciation correct.
Answer:
the sequential
Explanation:
maria is following a sequential research with logical order because she has a specific number of children that she works with.