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Andru [333]
3 years ago
13

An electron is a particle with a ____.

Physics
2 answers:
Dahasolnce [82]3 years ago
4 0

A beta particle. Hoped I help. Sorry if it wrong.

Mkey [24]3 years ago
3 0

An electron is a particle with a<em> negative electrical charge of  1.6 x 10⁻¹⁹ Coulomb </em>and <em>about 9.1 x 10⁻³¹ kg of mass</em>.

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One observer stands on a train moving at a constant speed, and one observer stands at rest on the ground. The person on the trai
Anna11 [10]

Answer:

Option D.

Value cannot be calculated without knowing the speed of the train

Explanation:

The speed of the beam can only be calculated accurately when the speed of the train is put into consideration. Based of the theory of relativity, the observer is on the ground, and the train is moving with the beam of light inside it. This causes a variation in the reference frames when making judgements of the speed of the beam. The speed of the beam will be more accurate if the observer is moving at the same sped of the train, or the train is stationary.

To get the correct answer, we have to subtract the speed of the train from the speed calculated.

4 0
2 years ago
Analogy: atom is to element as ____ is to compound
Masja [62]
Molecule is the answer to what you are looking for

5 0
3 years ago
How much thermal energy is created when a 3000 kg suv brakes to a stop from 20 m/s on a level road?
JulsSmile [24]

Answer:

b. 600,000 J

Explanation:

Applying the law of conservation of energy,

The thermal energy created = Kinetic energy of the suv.

Q' = 1/2(mv²)............... Equation 1

Where Q' = Thermal energy, m = mass of the suv, v = velocity of the suv.

From the question,

Given: m = 3000 kg, v = 20 m/s

Substitute these values into equation 1

Q' = 1/2(3000×20²)

Q' = 600000 J

Hence the right option is b. 600,000 J

5 0
3 years ago
What is a molecule??
Doss [256]

Answer:

A molecule is something every mass has and is very small

Explanation:

8 0
3 years ago
Read 2 more answers
A freezer has a coefficient of performance of 4.1. You place 0.45 kg of water at 16°C in the freezer, which maintains its temper
velikii [3]
Ohh this is quite a lot umm i’ll be back hold on
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2 years ago
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