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scoray [572]
2 years ago
9

SORRY LAST ONE FOR TODAY, IM GOING TO PASS IF I GET THIS ANSWERED

Physics
2 answers:
faust18 [17]2 years ago
6 0

Answer:

<u>According </u><u>to</u><u> the</u><u> </u><u>Given</u><u> Statement</u><u> </u>

Canon fires directly upwarda at 150m/s ( Initial speed, u )

Acceleration due to gravity is 10m/s²

Since Cannon ball reach it maximum height so its final velocity v will be 0 m/s .

Using Kinematic Equation

  • v = u + gt

On substituting the value we get

➥ 0 = 150 + 10 × t

➥ 150 = 10 × t

➥ 150/10 = t

➥ 15 s = t

So, it will take 15 seconds .

vladimir1956 [14]2 years ago
3 0

Answer:

maximum height reached: 15 s

Explanation:

using the formula: maximum height reached = [(sin(θ) * speed)/ gravity]

Here speed is 150m/s and gravity is 10 m/s² and as it does directly upwards, it has an angle of 90°

using the formula:

maximum height reached = [(sin(90) * 150)/ 10] = 15 s

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Answer:

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Explanation:

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Answer:

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3 years ago
When does a lightbulb carry more current, (a) immediately after it is turned on and the glow of the metal filament is increasing
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A  lightbulb carries more current immediately after it is turned on and the glow of the metal filament is increasing; option A.

<h3>What is current?</h3>

Current refers to the flow of electric charges typically electrons.

Current flowing through a metallic material decreases with increase in temperature of the material.

This is because the resistance of the metal increases with increase in temperature.

Therefore, for a light bulb, the current flow through it will be maximum when it is just turned on because the temperature, and hence the resistance of the  filament is at its lowest.

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