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olganol [36]
3 years ago
14

This is a type of stress that results when two plates push againts one another

Physics
1 answer:
S_A_V [24]3 years ago
4 0
Convergent boundaries compress. 
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An example of a radioactive isotope is carbon-12. carbon-14. neon-20. neon-22.
inna [77]
The only one on the list that I know is radioactive is Carbon-14. 
4 0
3 years ago
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Two billiard balls of identical mass move toward each other. Assume that the collision between them is perfectly elastic. If the
anzhelika [568]

Answer:

-20.0 m/s and 30.0 m/s

Explanation:

Momentum is conserved:

m (30.0) + m (-20.0) = m v₁ + m v₂

30.0 − 20.0 = v₁ + v₂

10.0 = v₁ + v₂

Since the collision is perfectly elastic, energy is also conserved.  Since there's no rotational energy or work done by friction, the initial kinetic energy equals the final kinetic energy.

½ m (30.0)² + ½ m (-20.0)² = ½ mv₁² + ½ mv₂²

(30.0)² + (-20.0)² = v₁² + v₂²

1300 = v₁² + v₂²

We now have two equations and two variables.  Solve the system of equations using substitution:

1300 = v₁² + (10 − v₁)²

1300 = v₁² + 100 − 20v₁ + v₁²

0 = 2v₁² − 20v₁ − 1200

0 = v₁² − 10v₁ − 600

0 = (v₁ + 20) (v₁ − 30)

v₁ = -20, 30

If v₁ = -20, v₂ = 30.

If v₁ = 30, v₂ = -20.

So either way, the final velocities are -20.0 m/s and 30.0 m/s.

3 0
3 years ago
Read 2 more answers
A point charge is used to determine the electric field around a charged particle. Why is it necessary that the point charge does
Mnenie [13.5K]
The strength, and possibly the shape and direction, of the electric field
around a charged particle depends on the location of the particle. 

If the process of measuring the field causes the particle to move, then
the measurement you get wouldn't mean anything. 

Your measurements wouldn't show the ACTUAL field around the particle.
They would show what the field is like AFTER something comes along
and distorts it, and that's not what you're trying to measure.

It would be like carrying a flame thrower into a freezer when you go in
to measure the temperature in there.

Or if you had to measure how much light is leaking into a dark room,
and you carried a flashlight with you to see your way around in there.
7 0
3 years ago
PLEASE HELP ME, 100 POINTS!! WRITE A 2 PAGE STORY IF YOU WERE A TINY WATER MOLECULE AND YOU WERE TRAVELING THROUGH THE WATER CYC
maksim [4K]

Answer:

Explanation:

pointers for comedy.

1. dont just add jokes in at random places. you have to make the whole thing funny. not just random spurts of funny

2. use sentences like, "evaporation can be really fun. first you are holding hands with other molecules forming a puddle then you shoot up into space. When you reach the top you get stuck to sand and you fall back to the earth."

3. if you simplify the processes so a child could understand them then it will be easier to make them funny.

4. once you get started it will be easier to keep it funny.

Hope this helps and you can understand it (it makes sense to me but it might not make sense to you)

3 0
4 years ago
Which term defines the amount of mechanical work an engine can do per unit of heat energy it uses? A. specific heat B. conductiv
KengaRu [80]

Answer:

Efficiency

Explanation:

  • The amount of mechanical work an engine can do per unit of heat energy it uses is called its efficiency.
  • It is also defined as the output divided by the total electrical power consumed.
  • In terms of heat, efficiency of engine is given by :

\eta=1-\dfrac{Q_o}{Q_i}

Q_o\ and\ Q_i are output heat and input heat respectively.

Hence, the correct option is (d) "efficiency"

4 0
3 years ago
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