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2 years ago

5

A(n) __________ refers to a substance or treatment that is often used in an experiment but does not have an actual medicinal or

experimental benefit.

2 answers:

sweet [91]2 years ago

3 0

Answer:

placebo

Explanation:

Diano4ka-milaya [45]2 years ago

3 0

Placebo
EXPLANATION
In a psychology experiment, a placebo is an inert treatment or substance that has no known effects.

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A car travels around a curve. What can you say about the centripetal force if the velocity is tripled?

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F = M a = M v^2 / R

If v is increased by three the force will be increased by nine,

C) is correct

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2 years ago

Are you aware of human rights violations happening in your community? Explain.

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4 years ago

Which of the following would add more resistance? Check all that apply.

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3 years ago

If a train going 60 m/s hits the brakes, and it takes the train 85 seconds to stop, what is

Anvisha [2.4K]

Question :-

If a Train going with 60 m/s Speed hits the Brakes, and takes 85 sec to stop. What is the Acceleration of the Train ?

Answer :-

Acceleration of Train is 0.70 m/s² .

Explanation :-

As per the provided information in the given question, we have been given that the Speed of the Train is 60 m/s . Time taken to stop the Train is 85 sec . And, we have been asked to calculate the Acceleration of the Train .

For calculating the Acceleration , we will use the Formula :-

$\bigstar \: \: \: \boxed { \sf{ \: Acceleration \: = \: \dfrac{v \: - \: u}{t} \: }} \\$

Where ,

V denotes to Final Velocity .
U denotes to Initial Velocity .
T denotes to Time Taken .

Therefore , by Substituting the given values in the above Formula :-

$\dag \: \: \: \: \sf{Acceleration \: = \: \dfrac{Final \: Velocity \: - \: Initial \: Velocity}{Time} } \\$

$\longmapsto \: \: \: \sf{Acceleration \: = \: \dfrac{0 \: - \: 60}{85} } \\$

$\longmapsto \: \: \: \sf{Acceleration \: = \: \dfrac{60}{85} } \\$

$\longmapsto \: \: \: \textbf {\textsf {Acceleration \: = \: 0.70 }}$

Hence :-

Acceleration = 0.70 m/s² .

$\underline {\rule {210pt} {4pt}}$

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Any fracture or system of fractures along which Earth moves is known as a

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3 years ago