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ELEN [110]
3 years ago
9

What is the marble's range if it is fired horizontally from 1.6 m above the ground?

Physics
1 answer:
cupoosta [38]3 years ago
5 0

Answer:

The answer is 6.40 meters.

Explanation:

The speed v = √(2gh)

v = √( 2×9.8×6.4) = 11.2 m/s

After, finding the time it takes to hit the ground from a height of 1.6 meters.

time = √(2H÷g)

time = √(2×1.6÷9.8)

time = 0.5714 seconds.

Horizontal distance is speed × time = 11.2 × 0.5714 = 6.40 meters.

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shutvik [7]
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3 years ago
Explain why electromagnetic wave is transverse wave and not a compressional wave. ...?
tiny-mole [99]
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5 0
3 years ago
a car begins at rest at a stoplight. After the light turns green, the car begins to accelerate 5 m/s squared over the span of 3.
gogolik [260]

Answer: 9m

Explanation:

Our given:

Acceleration- 5m/s^2

Time- 3.6 seconds

Use the equation d = 1/2 • a • t^2

d = 1/2 • 5m/s^2 • 3.6 secs

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I hope this is correct

4 0
3 years ago
How long does it take (in seconds) a 80,000 W motor to do 3,000,000 J of work?
postnew [5]
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5 0
3 years ago
Question 3 of 10
Anna35 [415]

Answer: The answer is B

Explanation:

There are 4 fundamental forces that hold matter together.

- Gravitational Force

- Electromagnetic Force

- Strong Nuclear Force

- Weak Nuclear Force

We have barely just scratched the info about nuclear forces but the reason why B is the answer to the question is that Strong nuclear force actually holds the protons and neutrons together in the nucleus of an atom, much like the picture in B.

6 0
3 years ago
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