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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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Answer:

 e = 50.27 give / s

Explanation:

The expression for simple harmonic motion is

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in this case they give us the amplitude A = 3.9 cm and frequency f = 8.0 Hz

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      e = 2π d

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let's look for the constant fi

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       v = dx / dt

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for the point of maximum displacement the speed is I think

        0 = - sin (0 + Ф)

therefore fi = 0

Let's put together the equation of motion

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What is a supernova type ia
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4 years ago
5. Annie drags her little red wagon with a mass of 5.00 kg, up a hill that has an angle of
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Answer: 25.08\ m/s^2

Explanation:

Given

mass of wagon m=5 kg

elevation

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From the definition of the first Law of thermodynamics we know that heat flows from the hottest object to the coldest. What has a refrigerator inside is a refrigerant that is traveling through some heat exchangers, driven by pumps and that allows the exchange of heat between a 'Hot' tank and then transport it to a certain place, eject it and return to extract more heat. In this way the refrigerant removes heat from a hot region to a cold region and heat enters said hot region. Since the heat extracted is greater than that of the medium, the heat from the inside flows outward.

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On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distanc
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