3 years ago

Which statement correctly describes the differences between positive and negative acceleration?

Physics

1 answer:

damaskus [11]3 years ago

7 0

In my opinion, the third answer makes the most sense

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A neutral solid metal sphere of radius 0.1 m is at the origin, polarized by a point charge of 2 × 10−8 C at location m. At locat

liraira [26]

Answer: E = $1.8 *10 ^{4} N$

Explanation: The formulae for intensity of an electric field of a solid metal sphere relative to a point is given below

$E =\frac{Kq}{r^{2} }$ r

where $k=9* 10^{9}N/m^{2}$ , $q=2 *10 ^{-8} c$ , r = 0.1m r = is the position vector of the charge.

it has been stated in the question that the charge is placed at the center thus it has no position vector.

$E=\frac{9 * 10^{9}* 2* 10^{-8} }{0.1^{2} }\\ =\frac{18* 10^{1} }{0.01} \\=\frac{18* 10^{1} }{1 *10^{-2} } = 1.8*10^{4} N$

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3 years ago

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olga nikolaevna [1]

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a)= technology is any appliances which makes our work very fast without much manual effort.It is used to make our life simple and easy.

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3 years ago

Who is the father of nuclear physics?

bija089 [108]

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3 years ago

A certain ultrasound device can measure a fetal heart rate as low as 50 beats per minute. This corresponds to the surface of the

balu736 [363]

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The. Machine must detect a shift of

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