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
LenKa [72]
3 years ago
10

How did Rutherford's experiments demonstrate that Thomson's model of the atom was incorrect?

Physics
2 answers:
chubhunter [2.5K]3 years ago
8 0
Rutherford's Gold foil experiment involved the firing of atoms at a piece of gold foil only a few atoms thick. Rutherford expected that the particles would go straight through, but some were deflected. This experiment proved that atoms have a dense positively charged nucleus.

Answer: d. They showed that atoms have a dense nucleus.




mestny [16]3 years ago
8 0

Answer:

d) They showed that atoms have a dense nucleus.

Explanation:

Thomson's  model  predicted that the atom is composed of negatively charged electrons, which is surrounded by positively charged cloud. This was called Plum pudding model of the atom.

But Rutherford proved it to be incorrect . His gold foil experiment showed that the atom's central part is heavy and positively charged. The deflections of the alpha particles showed that the heavy central region is surrounded by negatively charged particles called electrons.

You might be interested in
Describe the interactions with the Sun, Earth and Moon system that result in Tides.
bazaltina [42]

Answer:The sun, earth, and moon are held together by gravity, and they interact in lots of ways.

  • The tides are another interaction in the sun-earth-moon system. The tides happen because the moon and sun pull on the oceans, causing them to rise and fall each day. The moon has a bigger effect than the sun because it is closer.

3 0
3 years ago
If the IMA of a machine is 2 and the effort force is 50 newtons, then the force applied to the resistance is _____. 48 N 50 N 25
zysi [14]

IMA stands for ideal mechanical advantage, which is the theoretical force amplification factor on an ideal mechanical device free of friction, deformations, etc.


If the applied force (effort) is 50N, then the force applied to the resistance is multiplied by the IMA=2 to get 100N.

7 0
3 years ago
Read 2 more answers
Describe how cool and warm air move in the atmosphere.
Anna [14]

Answer:

it is cool and warm

Explanation:

5 0
3 years ago
Read this excerpt from Through the Looking-Glass by Lewis Carroll.
Vanyuwa [196]

Answer:

Why does Alice forget the name of the woods and her own name?

6 0
3 years ago
An 800-kHz radio signal is detected at a point 2.7 km distant from a transmitter tower. The electric field amplitude of the sign
dimaraw [331]

Answer:

Option D is correct: 170 µW/m²

Explanation:

Given that,

Frequency f = 800kHz

Distance d = 2.7km = 2700m

Electric field Eo = 0.36V/m

Intensity of radio signal

The intensity of radial signal is given as

I = c•εo•Eo²/2

Where c is speed of light

c = 3×10^8m/s

εo = 8.85 × 10^-12 C²/Nm²

I = 3×10^8 × 8.85×10^-12 × 0.36²/2

I = 1.72 × 10^-4W/m²

I = 172 × 10^-6 W/m²

I = 172 µW/m²

Then, the intensity of the radio wave at that point is approximately 170 µW/m²

7 0
3 years ago
Other questions:
  • Which BEST compares the motions of dots C and D?
    5·2 answers
  • When a pair of balanced forces acts on an object, the net force that results is
    10·2 answers
  • A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5N .
    7·1 answer
  • The potential difference between two parallel conducting plates in vacuum is 165 V. An alpha particle with mass of 6.50×10-27 kg
    7·1 answer
  • The weight of an ice sheet can cause continental lithosphere to sink into the underlying asthenosphere due to ____.
    11·1 answer
  • Which compound is an unsaturated hydrocarbon?
    13·2 answers
  • You ride on an elevator that is moving with constant upward acceleration while standing on a bathroom scale. the reading on the
    7·1 answer
  • La taille d'un molécule d'eau est 0,4nm
    11·1 answer
  • Dr. Potter provides vaccinations against polio and measles.
    11·2 answers
  • The equation to calculate density is D = m/v. For a liquid substance, which item increases as heat is applied?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!