PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!

Physics

2 answers:

alekssr [168]3 years ago

6 0

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The path a projectile takes is known as the trajectory.

As we know that when we launch a projectile, it follows a parabolic path. There is a horizontal component and a vertical component to its motion which can be studied separately.

Horizontally, the projectile simply moves at the initial horizontal velocity until something stops it.

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olga_2 [115]3 years ago

4 0

The path a projectile takes is known as the <u>trajectory</u>

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2 years ago

Give a calculate answer to show that the two values (English system and metric system) for the Planck Constant are equivalent.

Nataly_w [17]

Answer:

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Explanation:

Value of Planck's constant is given in English system as 4.14 x 10⁻¹⁵eV s.

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3 years ago

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klasskru [66]

Refer to the diagram shown below.

In order for the balloon to strike the professor's head, th balloon should drop by 18 - 1.7 = 16.3 m in the time at the professor takes to walk 1 m.
The time for the professor to walk 1 m is
t = (1 m)/(0.45 m/s) = 2.2222 s

The initial vertical velocity of the balloon is zero.
The vertical drop of the balloon in 2.2222 s is
h = (1/2)*(9.8 m/s²)*(2.2222 s)² = 24.197 m

Because 24.97 > 16.3, the balloon lands in front of the professor, and does not hit the professor.

The time for the balloon to hit the ground is
(1/2)*(9.8)*t² = 18
t = 1.9166 s

The time difference is 2.2222 - 1.9166 = 0.3056 s
Within this time interval, the professor travels 0.45*0.3056 = 0.175 m
Therefore the balloon falls 0.175 m in front of the professor.

Answer:
The balloon misses the professor, and falls 0.175 m in front of the professor.