Chemical weathering in a sentence

1 answer:

4 0

The rock had to have undergone chemical weathering due to its change in mineralogical and chemical composition of the rock. Or Chemical weathering is when the acid from rain starts to burn through rocks and damage them

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An electric circuit can have no current when a switch is <br> .

Stells [14]

An electric current can have no current when the switch is OPEN

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Which is a concern about mining for uranium? Heated water could be released into the environment. Dust released in the air could

saw5 [17]

Answer: Dust released in the air could be radioactive.

Explanation:

Uranium is a radioactive element. It decays naturally to attain stability. While mining, the dust displaces into the air causing not only harm to environment but for the workers as well. The released in the air could be radioactive which would be inhaled posing threat for lung cancer.

Thus, the correct answer is dust released in the air could be radioactive is a concern about mining Uranium.

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Which of the following factors affects the pressure of an enclosed gas

PIT_PIT [208]

The answer is:

All the above

The explanation:

The volume and the temperature and the number of particles will affect the pressure of an enclosed gas.

because according to boyle's law when the temperature constant so the pressure and volume of a gas have an inverse relationship, when temperature is constant.

when:

PV = nRT

when p is the pressure

V is the volume

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T is temperature

from this law we can know that there is a relation between P and V and when n has a relation with the number of particles so:

volume , temperature and number of particles affect the pressure of an enclosed gas.

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3 years ago

if you drop a softball from just above your knee, the kinetic energy of the ball just before it hits the ground is about 1 jule,

ipn [44]

False.

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This corresponds to the total mechanical energy of the ball at the moment it is dropped, because there is no kinetic energy (the ball starts from rest). Then the ball is dropped, and just before it hits the ground, all this energy is converted into kinetic energy: but energy cannot be created, so its final kinetic energy cannot be greater than 0.6 J.

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A catapult with a radial arm 3.81 m long accelerates a ball of mass 18.2 kg through a quarter circle. The ball leaves the appara

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Answer:

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