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Vadim26 [7]
3 years ago
14

Which of these describes a real image?

Physics
1 answer:
Margaret [11]3 years ago
8 0
Image from a far away object formed by a concave mirror

I have no idea but this is my best guess as a sophomore in college
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Water is more dense in its solid state.
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This statement is true.

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Explanation:

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A ball is thrown straight upward and returns to the thrower’s hand after 1.8 s in the air. A second ball is thrown at an angle o
zysi [14]

Answer:

U = 9.1 m/s

Explanation:

from the question we are given the following

time (t) = 1.8 s

angle = 23 degrees

acceleration due to gravity (g) = 9.8 m/s^{2}

let us first calculate the initial velocity (u) which too the first ball to its maximum height from the equation below

v = u + 0.5at

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therefore

0 = u - (0.5 x 9.8 x 0.9)

u = 7.9 m/s

for the second ball to get to the maximum height of the first ball, the vertical component of its initial velocity (U) must be the same as the initial velocity of the first ball. therefore

U sin 60 = 7.9

U = 7.9 ÷ sin 60

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5 0
3 years ago
How fast would a 2-kilogram object need to move to have the same kinetic
siniylev [52]

Answer:

11.3 m/s

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v ≈ 11.3 m/s

8 0
2 years ago
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