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
noname [10]
4 years ago
7

Jerome is learning how the model of the atom has changed over time as new evidence was gathered. He has images of four models of

the atom, but they are not in the correct order.
An image at left labeled W with overlapping red and blue balls in the center with a circular fuzzy green cloud outside them. An image at center left labeled X with a purple ball in the center surrounded by overlapping concentric black ovals, each with a small green ball on each of the 6 ovals. An image at center right labeled Y with a large black cross in a purple circle with a black line around the purple, with 10 small green balls dispersed within the purple circle. An image at right labeled Z with a purple center outlined in black with two concentric black circles around the center, the inner circle having 2 small green balls on it and the outer circle having 8 small green balls on it.

In what order should Jerome put these models to show the development from the earliest model of the atom to the most recent one?

Y, X, Z, W
Y, Z, W, X
W, Z, X, Y
W, Y, Z, X
Physics
2 answers:
adoni [48]4 years ago
6 0

Answer:

the answer is A. Y, X, Z, W

Explanation:

Stolb23 [73]4 years ago
5 0

Answer:

Y, X, Z, W

Explanation:

You know W is the most recent because it features the nucleus in the middle and the electron cloud which was shown in models after the others.

You might be interested in
Which statement best describes the size of the outer planets? All the outer planets are large. All the outer planets, except Sat
Jet001 [13]

Answer: a all the outer planets are large

Explanation: because i have the smarts

3 0
3 years ago
Read 2 more answers
A policeman in a stationary car measures the speed of approaching cars by means of an ultrasonic device that emits a sound with
Ymorist [56]

Answer:

the frequency of the beats is 8.7687 kHz

Explanation:  

Given the data in the question;

The frequency for stationary source and moving observer is;

f' = f( 1 +( v_observer/v_sound))

we know that, speed of sound in dry air =  343 m/s

so we substitute

f' = 41.2 kHz( 1 + (33.0 m/s / 343 m/s) ) = 41.2kHz( 1 + 0.0962) = 41.2kHz(1.0962)

f' = 45.1634 kHz

Now the frequency for stationary observer and moving source with frequency f' will be

f" = f'( 1 / (1 - ( v_observer/v_sound)))

45.1634 kHz( 343 / 343 - 33)

we substitute

f" = 45.1634 kHz( 1 / (1 - (33.0 m/s / 343 m/s)))

f" = 45.1634 kHz( 1 / (1 - 0.0962))

f" = 45.1634 kHz( 1 / 0.9038 )

f" = 45.1634 kHz( 1.1064 )

f" = 49.9687 kHz

Now the beat frequency will be;

f_beat = f' - f

we substitute

f_beat = 49.9687 kHz - 41.2 kHz

f_beat = 8.7687 kHz

Therefore, the frequency of the beats is 8.7687 kHz

7 0
3 years ago
all bearings are made by lebng spherical drops of molten metal fall inside a tall tower – called a shot tower – and solidify as
Wewaii [24]

Answer:

Part b)

h = 78.5 m

Part c)

v = 39.24 m/s

Explanation:

Part b)

If ball need t = 0 to t = 4 s then height of the tower is the total displacement of the ball in t = 4 s interval

here if ball start from rest

then its displacement is given as

\Delta y = \frac{1}{2}gt^2

\Delta y = \frac{1}{2}(9.81)(4^2)

\Delta y = 78.5 m

Part c)

Speed of the bearing at the end of the motion of the ball

v_f = v_i + at

v_f = 0 + (9.81)(4)

v_f = 39.24 m/s

7 0
3 years ago
Which best describes a material that could be used as a pan for baking cakes?
san4es73 [151]

Answer:

C

Explanation:

4 0
3 years ago
What is the outcome of the Training and Exercise Planning Workshop (TEPW)?
balandron [24]

Answer / Explanation:

The result of the Training and Exercise Planning Workshop (TEPW) is to set the foundation for the strategy and pattern for a proposed exercise program. The TEPW purpose is to engage elected and selected officials in identifying exercise program priorities and planning a schedule of training and exercise events to meet those priorities.

An essential factor for the exercise management process is to create a collaborative environment where a whole community stakeholders can engage in a forum to discuss and coordinate training and exercise activities across local organizations to maximize the use of available resources and prevent duplication of effort.

8 0
3 years ago
Other questions:
  • Suppose it was discovered that Hubble's constant, H0, was smaller than previously thought. How would this affect our estimate of
    5·1 answer
  • A photon with a frequency of 5.48 × 10^14 hertz is emitted when an electron in a
    5·1 answer
  • The ______ is between the mesosphere and the exosphere. troposphere stratosphere thermosphere exosphere
    8·2 answers
  • Ahmad gets pulled over for speeding on vacation in Paris. This speed limit says 130km/hr... but Ahmad knows he was only driving
    13·1 answer
  • A child tugs on a rope attached to a 0.62 kg toy with a horizontal force of 16.3 N. A puppy pulls the toy in the opposite direct
    15·1 answer
  • What is so unusual about plutos orbit
    12·1 answer
  • S27253129 ,,, message me please, I can't ask you my homework question in the comments :c
    12·1 answer
  • A bullet of mass 6.00 gg is fired horizontally into a wooden block of mass 1.20 kgkg resting on a horizontal surface. The coeffi
    5·1 answer
  • The James Webb Space Telescope is positioned around 1.5 million kilometres from the Earth on the side facing away from the Sun.
    13·1 answer
  • A trolley is moving at constant speed in a friction compensated track. Some plasticine is dropped on the trolley and sticks on i
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!