3 years ago

Which atomic model is missing from this set?

Physics

1 answer:

kap26 [50]3 years ago

6 0

Answer:

what are your options

Explanation:

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Energy that a microwave use to heat food?

yanalaym [24]

Electromagnetic energy

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2 years ago

Car crosses the first third of the road with unknown speed and the rest of the road with the speed of 50 km/h. What is the the s

Digiron [165]

40 km/h because the average of 50 and 30 is 40

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3 years ago

A stone is dropped from a certain height, distance covered by it in one second is:

Alinara [238K]

Answer:

d = 4.9 m

Explanation:

It is mentioned that a stone is dropped from a certain height. It is required to find the distance covered by it in one second.

The initial speed of the stone is equal to 0 as it was at rest. Let d is the distance covered by the stone.

Using second equation of motion :

$d=ut+\dfrac{1}{2}at^2$

Put u = 0 and a = g

$d=\dfrac{1}{2}gt^2\\\\d=\dfrac{1}{2}\times 9.8\times 1^2\\\\d=4.9\ m$

So, the distance covered by it in one second is 4.9 m.

5 0

3 years ago

For a two-level system, the weight of a given energy distribution can be expressed in terms of the number of systems, N, and the

Nikitich [7]

Answer:

W = N!/(n0! * n1!)

Explanation:

Let n0 = number of particles in the lowest energy state

n1 = number of particles in the excited energy state.

Using this, we can say that N = n0 + n1

From this we can then express the weight, W of the close system by finding the factorials of each particles

W = N!/(n0! * n1!)

Hence, the weight W is expressed as W = N!/(n0! * n1!)

7 0

2 years ago

It takes a ball 30 seconds to travel from point A to point B. What is the ball’s speed?

AlladinOne [14]

Direction from A to B divided by time(30s)

3 0

3 years ago