4 years ago

Motion is a change in ____.

Physics

1 answer:

Nonamiya [84]4 years ago

4 0

Answer:

Position

Explanation:

Motion is a change in position.

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Помогите!!!

ycow [4]

Answer:

Explanation:

UIGRDE

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2 years ago

You hang different masses M from the lower end of a vertical spring and measure the period T for each value of M. You use Excel

Svetradugi [14.3K]

Answer:

a)693.821N/m

b)17.5g

Explanation:

We the Period T we can find the constant k,

That is

$T = 2 \pi \sqrt{\frac{m}{k}}$

squaring on both sides,

$T^2=\frac{4\pi^2}{k}M +\frac{4\pi^2}{k}m_{spring}$

where,

M=hanging mass, m = spring mass,

k =spring constant

T =time period

a) So for the equation we can compare, that is,

$y=T^2=0.0569x+0.0010$

the hanging mass M is x here, so comparing the equation we know that

$\frac{4\pi^2}{k}=0.0569\\k= \frac{4\pi^2}{0.0569}\\k=693.821N/m$

b) In order to find the mass of the spring we make similar process, so comparing,

$\frac{4\pi^2}{k}m =0.001\\m=\frac{0.004k}{4\pi^2} =\frac{0.001*693.821}{4\pi^2}\\m=0.0175kg\\m=17.5g$

3 0

3 years ago

2. Which describes the law of reflection?

dmitriy555 [2]

Answer: Choice 1

Law of Reflection

Theta(i)=Theta(r)

Angle of incidence=Angle of reflection

8 0

3 years ago

Read 2 more answers

A system releases 20 J of heat into its surroundings while the surroundings

Allushta [10]

Answer:

The change of energy is 60J

Explanation:

We have a closed system, which receives 80 J of energy. It means this energy is entering the system. And also we have 20 J that is dissipating in the shape of heat.

Therefore the amount remaining in the system will be 80 - 20 = 60 J

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3 years ago

A force of 8,480 N is applied to a cart to accelerate it at a rate of 26.5 m/s2. What is the mass of the cart?

katrin2010 [14]

Answer:

Just use F =ma where m is mass and a is acc.

8 0

3 years ago