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Mumz [18]
3 years ago
5

Which scientist saw the atom as a positively charged sphere with negative particles ( electrons ) embedded within?

Physics
1 answer:
dybincka [34]3 years ago
6 0

Thomson discovered the first subatomic particle, the electron, while researching cathode rays. To explain the neutrality of atoms, Thomson proposed a model of the atom in which negative electrons are scattered throughout a sphere of positive charge. He called his atom the plum pudding model.

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The figure shows a graph of the angular velocity of a rotating wheel as a function of time. Although not shown in the graph, the
nataly862011 [7]

Answer:

θ = 33.54 rad

Explanation:

This is a circular motion exercise

         θ= θ₀ + w₀ t + ½ α t²

suppose that for t = 0 the body is at its initial point θ₀ = 0 and from the graph we see that the initial angular velocity w₀ = -9.0 rad / s

we look for the angular acceleration,

         α = \frac{\Delta w}{ \Delta t}

from the graph taken two points

         α = \frac{0 - (-9.0)}{3.0 - 0}

         α = 3 rad / s²

we substitute in the first equation

            θ = 0 -9 t + ½ 3 t²

the displacement is requested for t = 8.6 s

           θ = = -9  8.6 + 3/2  8.6²

           θ = 33.54 rad

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3 years ago
The distance versus time plot for a particular object shows a quadratic relationship. Which column of distance data is possible
Alexxandr [17]

just took the test it is A


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1. A gas enclosed in a cylinder occupies 0.030 m3. It is compressed under a constant pressure of 3.5 x 10^5 Pa until it's final
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B is the correct answer!!
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Explanation:

Wind Currents. currents of the surface waters of oceans and seas resulting from the action of wind on the surface of the water: Wind currents arise owing to the combined influence of the forces of friction, turbulent viscosity, pressure gradient, deflecting force of the earth's rotation, and so on.

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