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LuckyWell [14K]
2 years ago
11

An object is projected horizontally at 18.4 m/s from the top of a 162.7 meter cliff.

Physics
1 answer:
miskamm [114]2 years ago
5 0

Answer:

  106.03 meters  

Explanation:

The height is given by the formula for motion under the influence of gravity.

  h = -4.9t^2 +162.7

Height is 0 when ...

  0 = -4.9t^2 +162.7

  4.9t^2 = 162.7

  t^2 = 162.7/4.9

  t = √(162.7/4.9)

The horizontal distance traveled in that time is ...

  (18.4 m/s)√(162.7/4.9) s ≈ 106.03 m

The object will strike the ground about 106.03 meters from the base of the cliff.

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Which of the following element has seven total valence electrons? Your answer: argon helium oxygen bromine
GalinKa [24]

Answer:

bromine

Explanation:

Any element in the halogen group will have seven valence electrons. These elements include fluorine, chlorine, bromine, iodine, and astatine

6 0
3 years ago
please help. Sound travels at 330 m/s. If a lightning bolt strikes the ground 5 m away from you, how long will it take for the s
Olenka [21]

Answer:

0.015 seconds

Explanation:

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3 0
2 years ago
According to relativity theory, if a space trip finds a son or daughter biologically older than his or her parents, then the spa
Valentin [98]

Answer:

B. parents

Explanation:

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5 0
3 years ago
The following three questions refer to a situation in which a driver is in a car that crashes into a solid wall. The car comes t
Andreas93 [3]

Answer:

1) p₀ = 45000 N / s ,   p₀ '= 1800 , b)  I = -45000 N s ,  I = 1800 Ns

Explanation:

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the change at the moment is

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because the end the car is stopped

moment of the person

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3) the object that give the momentum to stop the wall motoring

The person is stopped by the impulse given by the car

a) This area is the one that absorbs most of the vehicle impulse

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6 0
3 years ago
Scientists can use spectral analysis of stars to determine which of the following?
RoseWind [281]
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4 0
3 years ago
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