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erica [24]
3 years ago
5

A student is conducting an experiment to determine how far a ballwill roll down a ramp based on the angle of incline what are th

e three possible controls for the experiment
Physics
1 answer:
Basile [38]3 years ago
8 0

Answer:ball, ramp, and angle

Explanation: these are the three things that are controls because you can control them

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Inthisexperiment,aspringforcewasusedtokeep moving object travelingin a circularpath.The size of a spring force should be proport
poizon [28]

Answer:

By calculation, it can be shown that;

K = \frac{F_{angular}}{2\times x\times c}

Whereby for constant K, as  {F_{angular}} increases,  x also increases.

Explanation:

The experiment set up consisted of the use of a spring force to maintain the object in  circular path.

The energy in the spring is given by

\frac{1}{2}\cdot k\cdot x^2.

Rotational kinetic energy = \frac{1}{2}·I·ω²

Inertia,  I =  \frac{1}{2}·m·r²

ω = \frac{v}{r}

Substituting gives

Rotational kinetic energy =  \frac{1}{2}·

=  \frac{1}{4}·m· v²

Equating both equations gives

K = \frac{2\times m\times v^2}{4\times x^{2} }  = \frac{1\times m\times v^2}{2\times x^{2} }  

Within the proportionality limit, x ∝ r

therefore we can write x = c·r which gives

\frac{ m\times v^2}{2\times x\times c\times r } = \frac{v^{2} }{r} \times\frac{m}{2\times x\times c}

Since \frac{v^{2} }{r} = angular acceleration, α, then

m× \frac{v^{2} }{r} = Angular force

Therefore K = \frac{F_{angular}}{2\times x\times c}

Therefore as Force, F increases, x also increases and the size of a spring force should be proportional to the amount of stretch in the spring.

3 0
3 years ago
how to sketch the following?:Sketch ray diagrams for a spherical convex lens with objects at the following distances. (Submit a
Sphinxa [80]

1) Do > 2f

Do means object distance

2f means 2 x focal length

2 x focal length = radius of curvature

When an object is placed beyond the radius of curvature, a real image is formed between the radius of curvature and focus. The image size is reduced. The sketch is shown below

7 0
1 year ago
What type of clothing is most suitable to facilitate this? A. a pair of pants with a cord B. a flame-resistant pair of pants C.
Tasya [4]

Answer:

A

Explanation:

8 0
3 years ago
Which of the following is not a valid conversion factor?
kykrilka [37]
The third option is wrong
8 0
2 years ago
Even, in 1921, the Dodge Brothers built a boat named the SS Delphine and it had a whopping 3000 HP. So, how much horsepower woul
satela [25.4K]

Answer: I am getting a result around the 54,800 area, so I am selecting the 55,000 HP answer.

7 0
3 years ago
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