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Rainbow [258]
2 years ago
13

A student uses a lever and fulcrum to lift a rock off the ground.

Chemistry
2 answers:
klio [65]2 years ago
7 0

Answer:B

Explanation: I know this because kinetic energy is when something is moving and potential energy is when something is not moving and the energy is being stored so it has you are pushing on the other side moving the object it is transforming the potential energy also known as stored energy into movement also known as kinetic energy

Zigmanuir [339]2 years ago
4 0
B is the correct answer
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Many people in South America are subsistence farmers. Subsistence farming is...
galben [10]

growing only enough crops for food to fed the family

Explanation:

subsistence farming is the practice of growing crops only for own use .. some developing countries are only doing farming for their personal use so they are in the stage of developing ..in a country like nepal we not being able to trade our farming .if we want to export then also we arenot getting the good market ..

8 0
2 years ago
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Marvin records scientific data about Lake Superior. For which property has Marvin forgotten to use an SI unit of measurement?
Illusion [34]

Answer: low temperature

Explanation:-

S.I or M.K.S is a system for defining physical units as meter, kilogram, second, ampere, kelvin or celcius, candela, and mole together with a set of prefixes to indicate multiplication or division by a power of ten for measuring length, mass, time , current, temperature and amount of substance respectively.

Given :

lake length = 563 kilometers = 563\times 10^3m

High temperature =76.5^0F

Low temperature =-6.3^0C

annual precipitation =762 mm= 762\times 10^{-3}m

Thus low temperature in units of Fahrenheit is not an S.I unit of measurement.

8 0
3 years ago
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Which substance is a pure substance? <br> Cereal <br> Silver <br> Jelly bean <br> Shampoo
Tju [1.3M]

Silver?

Fun FACT : An apple, potato, and onion all taste the same if you eat them with your nose plugged

6 0
3 years ago
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Help on science please
Otrada [13]

the Orange side will grow higher bc people on the blue side will eventually become over 65

6 0
3 years ago
A hollow conductor is positively charged. A small uncharged metal ball is lowered by a silk thread (insulating material) through
laiz [17]

Answer: Option (E) is the correct answer.

Explanation:

Since, the conductor is hollow which means that it is opened on both the ends. Hence, when a small uncharged metal ball is passed through it with the help of a silk thread then due to the presence of this insulating thread the ball will not come directly in contact with the charged rod.

As a result, there will occur no formation of opposite charge on the metal ball. Therefore, the ball will remain uncharged in nature.

Thus, we can conclude that after the given ball is removed, it will have no appreciable charge.

4 0
3 years ago
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