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kozerog [31]
3 years ago
10

Select each example of a projectile

Physics
2 answers:
mafiozo [28]3 years ago
4 0
Baseball, javelin, and maybe the clock but not sure on that... Just say baseball and javelin
Ludmilka [50]3 years ago
3 0

Answer:

2. A baseball

4. A javelin thrown

Explanation:

In projectile motion all the objects will have two components of motion under gravity.

Horizontal component of motion must remains constant as there is no force in that direction while in vertical direction due to gravity the speed must change.

So whenever an object is projected at some angle with the horizontal which is less than 90 degree then in that case the motion must be projectile motion.

So here the correct options are

2. A baseball

4. A javelin thrown

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Answer: d)

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If both beams have the same power, this means Energy/time so the number of photons per second must be different. As consequence a) is wrong as  b) since it is not posible since UV photon  have more energy that IR photons. c) It is no necessary know the frequency since the wavelength is related in the form:

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Answer:

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