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puteri [66]
3 years ago
13

Why is it impossible to build a machine that produces more energy than it uses?

Physics
1 answer:
Irina18 [472]3 years ago
8 0
Because then it could mess up the machine with to much energy
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How do the nitrogen and other matter in your body come from other living things in the environment.
kifflom [539]

Answer:

Through Photosynthesis and Respiration Process.

3 0
3 years ago
How can you rewrite the force formula (f=ma) to solve the acceleration?​
dezoksy [38]
A=0.5 Nkg=0.5 kg⋅m/s2kg=0.5 m/s2
8 0
3 years ago
Atoms can be "cooled" to incredibly low temperatures by letting them interact with a laser beam. Various novel quantum phenomena
Oksanka [162]

Answer:

the rms speed of cesium atoms that have been cooled to a temperature of 100nK = 0.43cm/s or 0.0043m/s

Explanation:

The concept of root mean square velocity is applied, where the average translational kinetic is related to the actual kinetic energy, the expression for the root mean square is the generated.

The detailed steps and appropriate substitution is as shown in the attachment.

8 0
3 years ago
X-rays travel in vacuum at a higher speed than the visible light. (A) True (B) False
AleksandrR [38]

Answer:

(B) False

Explanation:

The visible light and the x-rays are part of the electromagnetic spectrum, all in the spectrum travel in the vacuum at the same speed, at the speed of light (c = 299,792,458 m/s ). If the visible light ant the x-rays are traveling inside a medium, their velocity will change due to the properties of the medium but in the vacuum, their speed is the same.

3 0
3 years ago
A carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons. How many protons does a carbon-14 atom have?
jenyasd209 [6]

Carbon-14 atom have 6 protons plus 8 neutrons.

Explanation

Carbon-12 and Carbon-14 are examples of isotopes of carbon that have huge applications in the field of science.

Isotopes are those elements who have equal number of protons and electrons whereas their neutrons differ.

Therefore isotopes have same atomic number, as atomic number depends on number of protons or number of electrons whereas number of neutrons do not have a role in atomic number.

But mass numbers of isotopes are different as mass numbers depend on the number of protons and number of electrons.

6 0
3 years ago
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