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
EastWind [94]
3 years ago
13

How many changes of state are shown? 0 1 2 3

Physics
2 answers:
ivann1987 [24]3 years ago
7 0

Answer: 2

I just took the test.

You’re welcome

Mariana [72]3 years ago
5 0

Answer:

C. 2

Explanation:

If you're talking about this graph, there are 2 horizontal lines. That's how you identify it.

You might be interested in
Although we have discussed single-slit diffraction only for a slit, a similar result holds when light bends around a straight, t
user100 [1]

Answer:

The width of the strand of hair is   1.96 10⁻⁵ m

Explanation:

For this diffraction problem they tell us that it is equivalent to the diffraction of a single slit, which is explained by the equation

<h3>       a sin θ =±  m λ </h3><h3 />

Where the different temrs are: “a” the width of the hair, λ the wavelength, θ the angle from the center, m the order of diffraction, which is the number of bright rings (constructive diffraction)  

We can see that the diffraction angle is missing, but we can find it by trigonometry, where L is the distance of the strand of hair to the observation screen and "y" is the perpendicular distance to the first minimum of intensity

        L = 1.25 m 100 cm/1m   = 125 cm

       y = 5.06 cm  

      Tan θ = y/L

      Tan θ = 5.06/125

      θ = tan⁻¹ ( 0.0405)

      θ =  2.32º

With this data we can continue analyzing the problem, they indicate that they measure the distance to the first dark strip, thus m = 1

     a = m λ / sin θ

     a = 1 633 10⁻⁹ 1.25/sin 2.3

     a = 1.96 10⁻⁵ m  

     a = 0.0196 mm

The width of the strand of hair is   1.96 10⁻⁵ m

8 0
3 years ago
Number of vibrations (waves) in an amount of time
m_a_m_a [10]

Answer:

I think frequency not sure though

How frequently a wave or vibration occurs during a span of time, determines the waves frequency. Frequency is the number of waves per unit time. The unit for frequency if a Hertz ( 1/second). The speed a wave travels is the wavelength multiplied by this frequency. The amplitude of a wave is the maximum distance the wave is displaced.

5 0
2 years ago
List atleast to conditions that could cause the pressure inside a sealed container of gas to increase
hjlf
There are exactly three ways that could happen:

1).  The container was heated, and the gas inside it got warmer.

2).  Some part inside the container moved somehow, and made
      the inside volume smaller, so the gas got scrunched into a
      smaller space.

3).  Somebody pumped some more gas into the container, so
      a greater amount of gas had to live in the same space.     
8 0
3 years ago
A bicycle travels 141 m along a circular track of radius 30 m. What is the angular displacement in radians of the bicycle from i
Veseljchak [2.6K]

Answer: 4.7rad

Explanation:

Angular displacement =s/r

Where s=distance traveled

r=radius

Angular displacement =141m/30m

Angular displacement =4.7rad.

5 0
3 years ago
The inductive reactance of the circuit is exactly twice the resistance: XL=2R. Adjust the phasor that represents the voltage acr
SVETLANKA909090 [29]

Answer:

∅=63.43^{0}

Explanation:

z=impedance

x_{l}=2R

R=R

The resultant of the resistances in the circuit is called impedance

x_{l} is inductive reactance of the circuit

R is the resistance of the resistor

z=\sqrt{xl^{2}+R^2 }

z=\sqrt{2R^{2}+R^2 }

Z=\sqrt{5R^2}

Z=R\sqrt{5}ohms

tan∅=2R/R

tan∅=2

∅=Tan^-1(2)

∅=63.43^{0}

phase angle is ∅=63.43^{0}

3 0
3 years ago
Other questions:
  • The product of the synthesis reaction between sodium and chlorine gas is ?
    5·1 answer
  • Design at least two independent experiments to determine the wavelength of a microwave source. You have a microwave source, micr
    14·1 answer
  • PLEASE HELP ME!<br> help on this cross word puzzle PLEASE!<br> 17 POINTS FOR HELPING THANKS!
    8·2 answers
  • Which example is a body fossil? a) dino bones b) shrimp burrow c)dino footprint d)an ornithopod track
    8·2 answers
  • What acceleration is imparted to a football when the player kicked it with a force of 25 N? mass of football=0.40 kg
    11·1 answer
  • What force (in N) must be exerted on the master cylinder of a hydraulic lift to support the weight of a 2400 kg car (a large car
    5·1 answer
  • A baseball falling toward a player's glove gains _____ energy and loses _____ energy. A. potential; kinetic B. kinetic; potentia
    9·2 answers
  • Can someone please help me on thisss
    13·1 answer
  • How can I solve the following statement? A simple pendulum with a mass of 45g swings with a period of 11 s and an amplitude of 1
    10·1 answer
  • What are tectonic plate boundaries?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!