1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stiv31 [10]
2 years ago
8

Why don't atoms get too close?

Physics
2 answers:
ipn [44]2 years ago
6 0
I think C i’m sorry i don’t really pay attention to this anymore as I learned it in 6th
Lera25 [3.4K]2 years ago
3 0

Answer:

I would have to go with A, or maybe....yea A

You might be interested in
a nitrogen laser generates a pulse containing 10.0 mj of energy at a wavelength of 340.0 nm. how many photons are in the pulse?
Wewaii [24]

A nitrogen laser generates a pulse containing 10.0 mj of energy at a wavelength of 340.0 nm and has 1785 x 10¹⁹ photons in the pulse.

<h3>How many photons are in the pulse?</h3>

Energy of a single photon is

E=hcλ

E=6.626×10⁻³⁴ J s×3×108 m/s /340×10⁻⁹ m

E=6.31×10⁻¹⁹  J

Number of photons in the laser is

n=Total Energy/Energy per photon

n=10⁷×10⁻³J /5.90×10⁻¹⁹J/photon

n= 1785 x 10¹⁹ photons

To learn about photons, refer: brainly.com/question/20912241?referrer=searchResults

#SPJ4

6 0
1 year ago
If youre reading this goodluck in school homie &lt;3
bazaltina [42]
I needed this ! Thanks a lot
7 0
3 years ago
Read 2 more answers
When a wave is acted upon by an external damping force, what happens to the energy of the wave
Rasek [7]
The energy of the wave decreases gradually
8 0
3 years ago
Read 2 more answers
An elaborate pulley consists of four identical balls at the ends of spokes extending out from a rotating drum. A box is connecte
Klio2033 [76]

Answer:

its speed will be less than V

Explanation:

When the ball falls a distance d, its final kinetic energy plus rotational kinetic energy of the drum equals its initial potential energy.

K = U

With its speed V at the end of d, we have

1/2mV² + 1/2Iω² = mgd where I = rotational inertia of drum and balls, ω = angular speed of drum and balls and m = mass of box

1/2mV² + 1/2Iω² = mgd

1/2mV² = mgd - 1/2Iω²

V² = [2(mgd - 1/2Iω²)/m]

V = √[2(mgd - 1/2Iω²)/m]

When the four balls are moved inward closer to the drum, their rotational inertia increases and also its angular speed which thus causes an increase in rotational kinetic energy. But, since the box still falls the same distance of d, its final kinetic energy plus rotational kinetic energy of the drum plus balls still equals its initial potential energy

K = U

I' = new rotational inertia of drum and balls, ω' = new angular speed of drum and balls

With its new speed is now V' at the end of d,

1/2mV'² + 1/2I'ω'² = mgd

1/2mV'² = mgd - 1/2I'ω'²

V² = [2(mgd - 1/2I'ω'²)/m]

V' = √[2(mgd - 1/2I'ω'²)/m]

Since I' and ω' increase, the rotational kinetic energy of the drum and balls (1/2I'ω'²) increases. Thus, the difference (mgd - 1/2I'ω'²) < (mgd - 1/2Iω²) which implies that the kinetic energy of the box decreases. Hence, since its kinetic energy decreases, its speed V' also decreases.

So,  V' < V

So, its speed will be less than V.

3 0
3 years ago
Which is true about Earth's energy budget?
REY [17]

Answer:

I think is B but I'm not sure

5 0
3 years ago
Other questions:
  • If it takes 100N to push a 300N object up an incline plane , what was the MA of the ramp
    15·2 answers
  • Using r.i.v.p. How do I calculate circuits wit 12 volts
    14·1 answer
  • What is apparent magnitude and what can affect it?
    14·1 answer
  • Bob is pushing a box across the floor at a constant speed of 1.2 m/s, applying a horizontal force whose magnitude is 75 N. Alice
    8·1 answer
  • A ballistic pendulum is a device for measuring bullet speeds. One of the simplest versions consists of a block of wood hanging f
    11·1 answer
  • a 25 newton force applied on an object moves it 50 meters. the angle between the force and displacement is 40.0°. what is the va
    14·1 answer
  • Liam did an investigation to see how water temperature affects the amount of salt that will dissolve in the water. He filled 4 b
    6·2 answers
  • Acceleration is the magnitude of average velocity true or false
    6·1 answer
  • A student lists a set of materials
    7·1 answer
  • according to newton's first law of motion what is the reason for a ball throwing up in the airfall back to earth
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!