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tangare [24]
3 years ago
13

An isotope is a version of the same element that differs in the composition of the A) atom. B) nucleus. C) particle. Eliminate D

) electron cloud.
Physics
2 answers:
crimeas [40]3 years ago
5 0
The correct answer is B because isotopes have different numbers of neutrons, and neutrons are located in the nucleus

Hope this helps
worty [1.4K]3 years ago
5 0
The answers B. Hopes this helps

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Where in the solar system (and beyond) have scientists found evidence of organic molecules?
mel-nik [20]

Answer:

Beyond our solar system, organic molecules have been found in giant clouds of dust and gas between stars and in star-forming regions.

In our solar system, besides Earth, organic molecules have been discovered on comets, in meteorites, on Saturn's moon Titan, in the plumes of water expelled from Saturn's moon Enceladus, and on Neptune's moon Triton.

7 0
3 years ago
A. What is the change in internal energy for each of the following situations? q = 7.9 J out of the system and w = 3.6 J done on
Orlov [11]

Answer: -4.3\ J,\ 9\ J

Explanation:

Given

(a)

Heat transfer Q=-7.9\ J\quad \text{taken}

Work done W=-3.6\ J\quad \text{on the system}

Change in the internal kinetic energy is

\Delta U=Q-W\\\Rightarrow \Delta U=-7.9-(-3.6)\\\Rightarrow \Delta U=-4.3\ J

(b)

Heat transfer Q=1.5\ J\quad \text{given}

Work done W=-7.5\ J\quad \text{on the system}

Change in the internal kinetic energy is

\Delta U=Q-W\\\Rightarrow \Delta U=1.5-(-7.5)\\\Rightarrow \Delta U=9\ J

4 0
3 years ago
A solution which has a solid solute is saturated at 25°C. It is then heated to 35°C. There is no change in the appearance of the
vampirchik [111]

Answer:

C. oversaturated

Explanation:

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8 0
3 years ago
Your friend states in a report that the average time required to circle a 1.0-mi track was 49.325 s. This was measured by timing
Alenkasestr [34]
I'm very skeptical about the accuracy and reliability of his results.
I need to know more about the situation.

First of all, I need to know HOW the track was circled.
Was it by foot ?  By car ?  By horse ?  By a dog ?

-- The current men's world record in the Mile Run
    is 3 minutes 43 seconds.

-- My friend reported research showing that it really
   only requires about 22% of that much time.

-- His data and his methods need some peer review.
5 0
3 years ago
Anna pushes a box with a force of 8.00 newtons. She generates a power of 3.00 watts. How much time does it take for Anna to move
QveST [7]
Power is the energy in a system per time.  It will have units of Watts which is equal to joules per second. It can be expressed as:

P = E / t

where E = Force x distance

P = Fd / t
t = Fd / P
t = 8 (9.72) / 3.0
t = 25.92 s
8 0
4 years ago
Read 2 more answers
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