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adelina 88 [10]
3 years ago
5

You drop your backpack out of a window from a height of 8.3 m. What is the impact speed of your backpack?

Physics
1 answer:
Nady [450]3 years ago
8 0
The answer is 12.8 on apex

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Phoenix [80]
There are 3 states of matter. Solid, Liquid, Gas. An example of each would be ice, water, steam,
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2 years ago
The amplitude of oscillation is the maximum distance between the oscillating weight and the equilibrium position. Determine the
Eva8 [605]

Answer:

The frequency does not depend on the amplitude for any (ideal) mechanical or electromagnetic waves.

In electromagnetism we have that the relation is:

Velocity = wavelenght*frequency.

So the amplitude of the wave does not have any effect here.

For a mechanical system like an harmonic oscillator (that can be used to describe almost any oscillating system), we have that the frequency is:  

f = (1/2*pi)*√(k/m)

Where m is the mass and k is the constant of the spring, again, you can see that the frequency only depends on the physical properties of the system, and no in how much you displace it from the equilibrium position.

This happens because as more you displace the mass from the equilibrium position, more will be the force acting on the mass, so while the "path" that the mass has to travel is bigger, the mas moves faster, so the frequency remains unaffected.

5 0
3 years ago
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What is the force on a 1670kg elevator accelerating at 6m/s square?
marshall27 [118]

As per Newton's 2nd law

we know that

F = ma

it is product of mass and acceleration

here we know that

m = 1670 kg

also we know that

a = 6 m/s^2

so from above equation we have

F = 1670 * 6

F = 10020 N

so the force here will be 10020 N

7 0
3 years ago
Lucy boards a crowded bus as it sits in the station. There are no available seats, so Lucy stands in the center aisle next to a
Gelneren [198K]

Answer:

Check the attachment

Explanation:

3 0
3 years ago
What is the best estimate for the time required for an object in free fall (Vi = 0) with air resistance to travel 313.6 m.
kari74 [83]

Answer:

s = v_it +  \frac{1}{2} g {t}^{2}  \\ t =  \sqrt{2 \frac{s}{g} }  \\ t =  \sqrt{2 \times  \frac{313.6}{9.81} } \: sec \\  = 7.995 \: sec \approx \: a \: little \: less  \\  than \: 8 \: sec

4 0
2 years ago
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