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exis [7]
3 years ago
13

A mass on a horizontal surface is connected to the spring and pulled to the right along the surface stretching the spring by 25

cm. if the pulling force exerted on the mass was 80.N, determine the spring constant of the spring.
Physics
1 answer:
solniwko [45]3 years ago
3 0

Answer:

320 N/m

Explanation:

From Hooke's law, we deduce that

F=kx where F is applied force, k is spring constant and x is extension or compression of spring

Making k the subject of formula then

k=\frac {F}{x}

Conversion

1m equals to 100cm

Xm equals 25 cm

25/100=0.25 m

Substituting 80 N for F and 0.25m for x then

k=\frac {80}{0.25}=320N/m

Therefore, the spring constant is equal to 320 N/m

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Answer:

When an object is in free fall, gravity increases its velocity by 9.8 m/s with every passing second.

Explanation:

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2 years ago
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Why can people go to the moon but they cant go to the bottom of the ocean??
maw [93]

Answer:u can go to the moon and bottom of the ocean

Explanation:

Because the suits help them do both of that

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2 years ago
Can someone pls answer number 8 for me pls
fomenos

Answer:

1.33 m

Explanation:

Tom weighs 600 N and is 2 meters from the pivot.  So his moment is:

τ = Fr

τ = (600 N) (2 m)

τ = 1200 Nm

To balance the see-saw, Jeremy must create an equal and opposite moment.

τ = Fr

1200 Nm = (900 N) r

r = 1.33 m

So Jeremy must sit 1.33 m from the pivot on the other side.

4 0
3 years ago
a large beaker of water is filled to its rim with water. a block of wood is then carefully lowered into the beaker until the blo
oksano4ka [1.4K]

The correct answer is Equal to the weight of the block.

We are aware that when an object floats, the water it displaces weighs the same as the weight of the floating body. The upthrust is now equivalent to the body weight in this situation. The beaker is overflowing with water in this instance. The body was then created to float into it. When it reaches equilibrium in water, it expels water that must have been the same weight as it. Over the edge, the liquid spilled, collecting on the tray.

Therefore, the amount of water gathered on the tray must match the weight of the person floating.

Learn more about weight here-

brainly.com/question/10069252

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5 0
2 years ago
The resolution of a telescope is ultimately limited by the diameter of its objective lens or mirror. A typical amateur astronome
slava [35]

Answer:

 θ =  3.19  arc second

Explanation:

The resolution of a telescope is given by the rayleigh criterion, which establishes that two objects are separated if the principal maximum of diffraction of one of them coincides with the first minimum of diffraction of the second object, based on this the solution is given by the first diffraction minimum, the a slit is

        a sin θ = m λ

with m = 1

in the case of circular apertures the equation must be found in polar coordinates, therefore a numerical constant is introduced

        a sin θ = 1.22 λ

Angles are measured in radians and in these experiments they are small

        sin θ = θ

       θ= 1.22  λ  / a

in this case a = 6.09 in, the wavelength is wrong = 550 10⁻⁹ m which is the maximum resolution of the human eye

l

et's reduce the magnitudes to the SI system

        d = 6.09‘  2.54 10⁻-2 m / 1 inch = 15.4686 10-2 m

let's calculate

       θ = 1.22 550 10-9 / 15.468 10-2

       θ = 15.5 10⁻⁶ rad

       rad = 2.06 105 s

       θ = 15.5 10⁻⁶ rad  2.06 105s/ 1 rad

       θ =  3.19   s

     

3 0
2 years ago
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