PHYSICS HIGH SCHOOL

What did Ernest Rutherford expect to happen when he aimed a beam of particles at a thin gold foil?

Answers

Answer 1
Answer:

When Ernest Rutherford aimed a beam of particles at a thin gold foil he expected that the particles would be deflected slightly after passing through the foil.

Further Explanation;

An atom  

  • An atom is the smallest particle of an element that takes part in a chemical reaction.
  • It is made up of a nucleus and energy levels.
  • Atoms contain sub atomic particles; electrons found in the energy levels, neutrons and protons found in the nucleus of the atom.
  • Electrons are negatively charged, protons are positively charged while neutrons have no charge.
  • The positive charge of protons gives nucleus a positive charge which attracts the opposite charged electrons.  

Rutherford Experiment

  • Rutherford carried out an experiment where he fired alpha particles at a piece of gold foil.
  • He found that about 1/800 of the alpha particles fired bounced back off of the gold foil.
  • He therefore, concluded that there was a part of the atom that was very dense, and that there was also lots of empty spaces.
  • According to Rutherford's model an atom contains a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus similar to the structure of the Solar system.

Shortcoming of Rutherford's model

  • Rutherford's model of the atom failed to explain why electrons were not pulled into the atomic nucleus by the attraction of opposite charges of the nucleus and electrons.

Keywords: Atom, Rutherford experiment, gold foil, nucleus of an atom, setbacks of Rutherford's model

Learn more about:

Level: High school  

Subject: Chemistry  

Topic: Structure of an atom and Atomic models

Sub-topic: Rutherford's and Bohr's model
Answer 2
Answer: The particles would be deflected slightly after passing through the foil

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Inertia. Alternatively, this can be defined or phrased as the resistance of an object to change its motion. This motion could be direction, speed or more. The principle of inertia is core in physics and is Newton’s First Law of Motion.

Please help! This is due in 10 minutes!! I will mark brainliest asap

Answers

The object is at rest. This is because time is going by and there’s no distance being added
Third option is the answer aka the object is resting hope this helps you

Explain how changes in weather are caused by the interaction of air masses

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When the lower air pressure gets colds it turns to be cold weather turns in to the high pressure like wise it would be changing of high pressure gets change in to the low pressure of it.So that there will be huge storm has been occurred and it will cause a rain.

Which of the following actions or events did not contribute to the Dust Bowl? Farmers in the Central U.S. had plowed grasslands to grow food crops to feed the increasing human population. They left the fields plowed and bare in the winter months when crops were not grown, and this left the soil exposed to wind. A long drought in the 1930s left the exposed soil especially dry due to the lack of precipitation. With the advent of pesticides, minerals in the ground were leached.

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The following cause that is notconsidered in the formation of a Dust Bowl is the lack of farmers in Oklahoma.The answer is letter B. in fact, the number of farmers increases due to thehigh grain prices of Worl War I that encourages farmers to plow millions ofacres of natural grass to plant wheat.

Answer:

With the advent of pesticides, minerals in the ground were leached.

Explanation:

got it right on odyssey

Water enters a baseboard radiator at 180 °F and at a flow rate of 2.0 gpm. Assuming the radiator releases heat into the room at a rate of 20,000 Btu/ hr., what is the temperature of the water leaving the radiator?

Answers

Answer:

Temperature of water leaving the radiator = 160°F

Explanation:

Heat released = (ṁcΔT)

Heat released = 20000 btu/hr = 5861.42 W

ṁ = mass flowrate = density × volumetric flow rate

Volumetric flowrate = 2 gallons/min = 0.000126 m³/s; density of water = 1000 kg/m³

ṁ = 1000 × 0.000126 = 0.126 kg/s

c = specific heat capacity for water = 4200 J/kg.K

H = ṁcΔT = 5861.42

ΔT = 5861.42/(0.126 × 4200) = 11.08 K = 11.08°C

And in change in temperature terms,

10°C= 18°F

11.08°C = 11.08 × 18/10 = 20°F

ΔT = T₁ - T₂

20 = 180 - T₂

T₂ = 160°F

Lightning often strikes water.
a. True
b. False

Answers

It is true.
..............
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