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morpeh [17]
2 years ago
6

If you throw a ball up with a velocity of 7 m/s, how long will it take for the ball to reach

Physics
1 answer:
AveGali [126]2 years ago
7 0

Answer:

42secs

Explanation:

v=u-gt

0=7-10t

10t=7

t=7/10

t=7/10*60

t=42

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Light is emitted by electrons when they drop from one energy level to a lower level. Which transition results in the emission of
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Answer:

Level 4 to level 2

Explanation:

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Hence, the correct option is "Level 4 to level 2".

3 0
3 years ago
URGENTTT PLEASE HELPPPP. You put m1 = 1 kg of ice cooled to -20°C into mass m2 = 1 kg of water at 2°C. Both are in a thermally i
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Answer:

Explanation:

heat lost by water will be used to increase the temperature of  ice

heat gained by ice

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8372

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5 0
2 years ago
How will frost on the wings of an airplane affect takeoff performance?
san4es73 [151]

Frost will disturb the smooth flow of air over the wing, unpleasantly distressing its lifting competence. In other words, this spoils the even flow of air over the wings, by this means decreasing lifting capability. Also, frost may avoid the airplane from becoming flying at normal departure speed.

8 0
3 years ago
Ms. Stafford wants to try racing with a push start. A student pushes her at 5 m/s before the rocket kicks in. The rocket still o
Gnom [1K]
The initial velocity of Ms. Stafford is v_0 = 5 m/s, while her acceleration is 
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Define polarization (igcse answer please)
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Answer:

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plz mark brainliest

8 0
3 years ago
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