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worty [1.4K]
4 years ago
11

in some states, the highway patrol uses planes carrying radar devices to monitor traffic. As the plane flies over traffic, the r

adar device can tell the officers how fast each car is moving at that moment in time. The radar device determines the car's (2 points) average velocity. instantaneous speed. acceleration. average speed.
Social Studies
1 answer:
Savatey [412]4 years ago
8 0

Planes need speed to take off and cars need a little bit of speed to take off in a flash in a snap

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An example of democratization is the use of:
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The answer would be B
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The options.

A) Planet B has an orbital period 64 times shorter than Planet A.

B) Planet B has an orbital period 4 times shorter than Planet A.

C) Planet B has an orbital period 64 times longer than Planet A.

D) Planet B has an orbital period 4 times longer than Planet A.

E) Planet B has an orbital period 8 times longer than Planet A.

The CORRECT ANSWER IS E)

E) Planet B has an orbital period 8 times longer than Planet A.

Explanation:

Using P2 = a3 to do the estimation.

Let the size of the orbit (a) be represented in astronomical units (1 AU is the average distance between the Earth and Sun) and the period (P) is estimated in years, then Kepler's Third Law says P2 = a3.

It implies that:

A) the period of a planet is independent on its mass.

B) all orbits that possess equal semimajor axis possesses equal period.

C) planets that very distant from the Sun moves slowly than those that are nearer to the sun.

P2 = a3

Given, a =2

P2 = (2)^3

P2 = 8

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