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Novay_Z [31]
3 years ago
8

Who was the first known contributor to the atomic theory? Select one: a. Thomson b. Bohr c. Dalton d. Democritus

Physics
1 answer:
ser-zykov [4K]3 years ago
6 0
It would be D Democritus
He contributed in around 460-370 BC
Whereas the others contributed much later from around 1700's - 1900's
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During the execution of a play, a football player carries the ball for a distance of 33 m in the direction 58° north of east. To
podryga [215]

Answer:28 m

Explanation:

Given

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therefore its east component is 33cos58=17.48 m

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During an earthquake you should.
White raven [17]

Well, you should TAKE COVER UNDER A STUDY DESK, TABLE OR AGAINST AN INSIDE WALL. Which is C. This is because, doing this protects you from the falling objects. If you do A or B, you will probably get crushed by falling objects because you are exposed. Hope I helped.
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3 years ago
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With e in volts per meter and t in seconds. at t = 0, the field is upward. the plate area is 4. 3 × 10-2 m2. for t > 0, what
kenny6666 [7]

The magnitude of the displacement current between the plates is    2.1*10^{-8} A

Given,

A=4.3*10^{-2}  m^{2}

E=(4.0*10^{5})-(6.0*10^{4}t)\\

i_{d}  =ϵ_{0} *\frac{dϕ_{E} }{dt } =ϵ_{0}A\frac{dE}{dt}

i_{d}=ϵ_{0}*A*\frac{d}{dt}(4.0*10^{5})-(6.0*10^{4}t)=-ϵ_{0} *A*6.0*10^{4}

= -(8.85*10^{-12})(4.0×10*^{-2})(6.0×10^{4})=-2.1*10^{-8} A

<h3>Current </h3>

An electrical charge carrier flow known as current often involves electrons or atoms lacking in electrons. The capital letter I is frequently used as a symbol for current. Amperes are the common unit and are denoted by the letter A. A coulomb of electrical charge moves past a certain place in one second as one ampere of current does. Franklin current or conventional current are terms used by physicists to describe how current flows from relatively positive to comparatively negative sites. Negatively charged electrons are the most prevalent charge carriers. They move in a somewhat good direction from relatively negative points.

With e in volts per meter and t in seconds. at t = 0, the field is upward. the plate area is 4. 3 × 10-2 m2. for t > 0, what is the magnitude of the displacement current between the plates?

Learn more about current here:

brainly.com/question/13076734

#SPJ4

5 0
1 year ago
Describe how day length is affected by the tilt of the earths axis
igor_vitrenko [27]

It does not.

The speed at which the earth rotates determines the length of the day.


7 0
3 years ago
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