4 years ago

This famous scientist conducted experiments that led to the development of the Plum Pudding atomic model.

Physics

2 answers:

dalvyx [7]4 years ago

8 0

Answer: Thomson discovered the electron, leading to the Plum Pudding model

Explanation:

s344n2d4d5 [400]4 years ago

5 0

J.J. Thomson discovered the electron, leading to the Plum Pudding model

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A horizontal board of negligible thickness and area 2.0 m2 hangs from a spring scale that reads 80 N when a 4.0 m/s wind moves b

ki77a [65]

Answer:

Scale reading for no wind $W'=60N$

Explanation:

From the question we are told that

Area $A= 2.0 m^2$

Weight of board $W=80$

Velocity $V=4.0m/s$

Density of air $\delta= 1.25 kg/m3 .$

Generally the equation for pressure difference by Bernoulli equation is mathematically given by

$dP=\frac{1}{2}pv^2$

$dP=10Pa$

Generally force acting on the board by air is mathematically given by

$F=\triangle PA$

$F=(10)2=>20N$

Therefore

Scale reading for no wind W'

$W'=W-F\\W'=80-20$

$W'=60N$

Scale reading for no wind W'=60N

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3 years ago

A body moving in a circular path has _______ displacement.

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Answer:

Displacement is the shortest distance travelled from the initial point to the final point. After half revolution the displacement is the length of the diameter which is equal to 2r. Hence the displacement is 2r.

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You shove a chair with wheels(and let it go)and it starts moving across the floor. However,the chair soon shows down and comes t

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A force that tends to pull an object towards the center of the earth is?

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Explanation:

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Two parallel plates, each having area A = 3557 cm2 are connected to the terminals of a battery of voltage Vb = 6 V as shown. The

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