CHEMISTRY HIGH SCHOOL

34. Many bicycles have generators that have a light that can be powered without a battery.Instead of a battery, a magnet and a coil of wire are used to make an electric current flow. The
setup shown below models how a bicycle generator functions to produce light. Currently, no
electric current is flowing through the circuit shown.
What needs to happen to cause an electric current to flow through the circuit?
A. The magnet needs to be in constant motion.
B. A bigger light bulb needs to be used.
C. The magnet's north pole needs to point up.
D. A smaller wire needs to be used.
34. Many bicycles have generators that have a light that - 1

Answers

Answer 1
Answer: A the magnet needs to be in motion

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Which list of nuclear emissions is arranged in order from the greatest penetrating power to the least penetrating power?(1) alpha particle, beta particle, gamma ray
(2) alpha particle, gamma ray, beta particle
(3) gamma ray, alpha particle, beta particle
(4) gamma ray, beta particle, alpha particle

Answers

The list of nuclear emissions is arranged in order from the greatest penetrating power to the least penetrating power is  gamma ray, beta particle, alpha particle.

What is nuclear emission?

Nuclear emission is the emission of nuclear energy by the chemicals produced in factories.

Nuclear reactors do not produce air pollution.

Thus, the correct option is (4) gamma ray, beta particle, alpha particle.

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Answer:

(4) gamma ray, beta particle, alpha particle.

Explanation:

Penetration power is the capacity of a radiation to pass through any matter.

the penetration power is inversely proportional to the mass of particles or radiation.

Out of the given three rays, gamma rays are lightest then beta and then alpha.

Thus penetration power of gamma rays is highest.

Then beta particles

Then alpha particles.

Lile would not be possible on Earth without the water that covers much of its surface, and the air that surrounds it. Earth's water and air affect each other in many ways. Which of the following situations represents anInteraction between the atmosphere and the hydrosphere?
volcanoes erupting
underwater earthquakes
O greenhouse gases forming
evaporation from lakes and rivers

Answers

Answer:

Option D:

evaporation from lakes and rivers

Explanation:

The water cycle is a natural cycle that shows how water moves and circulates within a natural environment. Water usually moves between the hydrosphere and the atmosphere through evaporation and condensation.

When water evaporates from the hydrosphere (the water bodies), it goes up into the atmosphere where it cools to become clouds. As more water evaporates, the clouds formed increase in mass. Once the clouds are too heavy to be held up in the sky, they fall down as precipitation (rain, snow, hail) into the water bodies and surrounding land below.

The _____ rate is the number of particles that react in a given time to form products. a. le chantelier
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c. dynamic
d. elementary

Answers

b. reaction rate is the answer
The correct ANWSER is b Mark me the brainliest anwser

True or false. The synthesis of giant molecules from components of repeating units is polymerization.

Answers

True due to the fact that polymers are a giant chain of monomers

When star A runs out of fuel, it explodes in a supernova and becomes a neutron star. When star B runs out of fuel, it contracts to become a white dwarf. Based on this information which of the following conclusions is most likely true:A. Star A had a larger mass than star B
B. For most of its life cycle, star A appeared substantially brighter than star B from earth
C. For most of its life cycle, star B appeared substantially brighter than star A from earth

Answers

Only five supernovae have ever been documented as being visible to the unaided eye, with two of those believed to be core-collapse supernovae. Thus, option B is correct.

What is are the process of supernova formation?

Iron atoms are compressed so closely together that the nuclei's repelling forces cause the squeezed core to recoil, which causes the star to go supernova and generate a massive, superheated shock wave.

A supernova explosion takes place in a star over the course of just 100 seconds. A star that experiences a supernova explosion dies and leaves behind a neutron star or a black hole as a remnant.

The largest explosion that mankind have yet witnessed is a supernova. Each explosion is the incredibly bright, incredibly potent explosion of a star. The largest explosion that mankind have yet witnessed is a supernova.

Therefore, For most of its life cycle, star A appeared substantially brighter than star B from earth

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B. for most of its life cycle, star A appeared substantially brighter than star B from earth

Which statement must be true for any chemical reaction at equilibrium?(1) The concentration of the products is greater than the concentration of the reactants.
(2) The concentration of the products is less than the concentration of the reactants.
(3) The concentration of the products and the concentration of the reactants are equal.
(4) The concentration of the products and the concentration of the reactants are constant.

Answers

The correct answer is 3. The concentration of the product and the concentration of the reactants are equal. That is because matter cannot be created or destroyed and the product cannot randomly become something else in the reaction, nor can a reactant change into something different. Simply put, you cannot turn things like water into gold because there will always be an equilibrium.

Answer:

Answer is 4 The concentration of the products and the concentration of the reactants are constant.

Explanation:
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