All categories

3 years ago

How did thomson’s findings revise dalton’s atomic theory??

1 answer:

8 0

Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles. ... The positive and negative charges cancel producing a neutral atom. images.tutorvista.com. Later discoveries by Rutherford and others lead to additional revisions to atomic theory.

You might be interested in

Q: Which direction are the force vectors pointing for a bullet fired from a gun. Assume that the bullet is traveling to the righ

Anit [1.1K]

Answer:

D: Left, Down

Explanation:

Assuming that the bullet has already left the gun, there are only two forces acting on the bullet now, during its motion:

- The force of gravity (the weight of the object), acting downward

- The air resistance acting against the direction of motion (so, if the bullet is moving right, the air resistance acts to the left)

As a result of these two forces:

- The bullet will accelerates downward in the vertical direction, due to the force of gravity

- The bullet will decelerated (slow down) along the horizontal direction, due to the air resistance that acts against the direction of motion of the bullet

So, the bullet will acquire a parabolic path.

Therefore, the correct answer is

D: Left, Down

5 0

3 years ago

Read 2 more answers

To practice Problem-Solving Strategy 25.1 Power and Energy in Circuits. A device for heating a cup of water in a car connects to

Rom4ik [11]

Answer:

It takes <u>951 seconds</u> to boil a cup of water.

Explanation:

Given:

EMF of the battery (E) = 10.0 V

Internal resistance of the battery (r) = 0.04 Ω

Resistance of the circuit = 'R'

Current measured in the circuit (I) = 11.0 A

Energy required to boil water (U) = 100 kJ = 100 × 10³ J [1 kJ = 10³ J]

Time taken for boiling (t) = ?

We know that, the emf of the battery is given as:

$E=I(R+r)$

Plug in the given values and solve for 'R'. This gives,

$10=11(R+0.04)\\\\R+0.04=\frac{10}{11}\\\\R=\frac{10}{11}-0.04=0.909-0.04=0.869\ \Omega$

Now, energy required to boil the water is given as:

$U=I^2Rt$

Plug in the given values and solve for 't'. This gives,

$100\times 10^3\ J=(11.0\ A)^2(0.869\ \Omega)t\\\\t=\frac{100000\ J}{121\times 0.869\ A^2\Omega}\\\\t=\frac{100000\ J}{105.149\ A^2\Omega}\\\\t=951\ s$

So, it takes 951 seconds to boil a cup of water.

5 0

4 years ago

What is the most fundamental property of a star in determining its evolution? luminosity temperature composition mass size?

Vitek1552 [10]

The most fundamental property of a star that determines its evolution is the MASS of the star.

In fact, while low-mass stars usually end their life becoming red giants and then white or black dwarfs, the high-mass stars can evolve into red supergiants and eventually originate a supernova. After the explosion of the supernova, depending on their mass, they can becomes neutron stars or collapse into black holes.

5 0

3 years ago

46. Can you take a walk in such a way that the distance

Vikki [24]

Answer: In a logical Pace forum subject to the distance

Explanation:

7 0

3 years ago

I NEED HELP ASAP WHAT IS THE DISTANCE MOVED IN 15 SECONDS

Oduvanchick [21]

Answer:

5 I think

Explanation:

8 0

3 years ago

Read 2 more answers