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Contact [7]
3 years ago
14

15. If friction was completely removed from the track, what affect would this have on the roller coaster ride?

Physics
1 answer:
finlep [7]3 years ago
4 0
Answer:
A

Explanation:
The coaster wouldn’t eventually stop because there’s no fiction to stop it. In order for a object to stop, there must be a opposing force ( in this case, fiction).
It is true that the coaster could use hills to stop, but the coaster can’t use flat section to stop.
So what I think is that the answer is A.

Fun Fact:
It would be really tough just to stand up without friction.

I hope this help and have a nice day :)
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A uniform steel plate has an area of 0.819 m2. When subjected to a temperature difference between its sides, a heat current* of
Tju [1.3M]

Answer:

ΔT / Δx = 771 K/m

ΔT = 771 x 0.0475 = 36.62 k

Explanation:

P = 31700 W, A = 0.819 m^2, Δx = 0.0475 m, K = 50.2 W /m k

Use the formula of conduction of heat

H / t = K A x ΔT / Δx

So, ΔT / Δx = P / K A

ΔT / Δx = 31700 / (50.2 x 0.819)

ΔT / Δx = 771 K/m

Now

ΔT = 771 x 0.0475 = 36.62 k

5 0
3 years ago
A velocity vs. time graph is shown.
Scilla [17]

Answer:

Acceleration, a=4\ m/s^2

Explanation:

We are given with a velocity-time graph of an object that starts from origin. y axis is velocity and x-axis is time.

The slope of velocity-time graph gives acceleration of an object. Taking the slope of this graph.

m=\dfrac{v}{t}\\\\m=\dfrac{20\ m/s}{5 s}\\\\m=\text{acceleration}=4\ m/s^2

So, the acceleration of the object is 4\ m/s^2.

8 0
4 years ago
Maryam is driving her car when she glances at the temperature displayed on her dashboard. It says that the temperature is curren
Gre4nikov [31]

Answer: Maryam is driving her car when she glances at the temperature displayed on her dashboard. It says that the temperature is currently 78 degrees outside. This temperature is called a Sensation.

Explanation: To find the answer, we need to know more about the Sensation, perception and psychophysics.

<h3>What is sensation, perception and psychophysics?</h3>
  • Sensation can be defined as the process by which the physical energy from objects in the world stimulates the sense organs.
  • The process in which the brain interprets and organizes this sense of information is called, Perception.
  • The branch of physics that deals with the study of how physical properties of stimuli connected with the people's experience of stimuli is called the Psychophysics.

Thus, we can conclude that, the process of sensation happens here.

Learn more about the Sensation, perception and psychophysics here:

brainly.com/question/28044944

#SPJ4

3 0
2 years ago
Scientists track _________________ to be able to predict geomagnetic storms and technological disturbances on Earth
Misha Larkins [42]
A. Sunspots and solar storms
6 0
3 years ago
Read 2 more answers
A free body diagram can be used to help work out the net force acting on an object. True or, false?
Whitepunk [10]

Answer:

free body diagram can be used to help work out the net force acting on an object. True or, false?

Columbian exchange. Tell a story in chronological order of the changes that the community undergoes as it and the communities around it make contact with Europeans over a span of roughly 50 to 100 years.

This section is worth 20 points. See the scoring rubric for more details on how you

will be graded

Use the evidence you gathered to tell the story of a hypothetical indigenous

community in the Americas and its experience involving the Columbian Exchange.

Come up with a community whose circumstances are typical of many in Central

America, the West Indies, or another part of the Americas that had direct contact with

Europeans. Tell the story in chronological order, but feel free to skip whole years or

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availability of goods, the effects of disease, and the impact of European culture

(language and religion, for example), at the very least.

Think of your story as more of a summary than a work of fiction; you must cover a

large span of time in few words. Base the details of the story on factual evidence and

cite your sources, but keep in mind that the text should be written as a story, not as

an essay with a conventional introduction, body, and conclusion. Aim for about 700

to 1,200 words.

6 0
3 years ago
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