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Vera_Pavlovna [14]
3 years ago
14

I need help someone PLEASE

Physics
1 answer:
inysia [295]3 years ago
6 0

Answer:

see diagram in attachment

Explanation:

two different problems have been solved

Download pdf
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Suppose you made 5 measurements of the speed of a rocket:10.2 m/s, 11.0 m/s, 10.7 m/s, 11.0 m/s and 10.5 m/s. From these measure
Sav [38]

Answer:

mean = 10.68 m/s

standard deviation 0.3059

[/tex]\sigma_m = 0.14[/tex]  

Explanation:

1) Mean = \frac{ 10.2+11+10.7+11+10.5}{5}

  mean = 10.68 m/s

2 ) standard deviation is given as

\sigma = \sqrt{ \frac{1}{N} \sum( x_i -\mu)^2}

N = 5

   \sigma =\sqrt{ \frac{1}{5} \sum{( 10.2-10.68)^2+(11-10.68)^2 + (10.7- 10.68)^2+ (11- 10.68)^2++ (10.5- 10.68)^2

SOLVING ABOVE RELATION TO GET STANDARD DEVIATION VALUE

\sigma  = 0.3059

3) ERROR ON STANDARD DEVIATION

\sigma_m = \frac{ \sigma}{\sqrt{N}}

               = \frac{0.31}{\sqrt{5}}

\sigma_m = 0.14  

3 0
4 years ago
Read 2 more answers
Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
yawa3891 [41]

Answer:

B: The colors of light emitted from heated atoms had very specific energies.

Explanation:

In Thompson's model of an atom the atom is said to be constituted of electrons which are surrounded by a haze of positive charge in order to balance the electrons' negative charges. It is also called plum prodding model because of negatively charged plums which are surrounded by the positively charged pudding.

Now, as the electrons move from higher to lower energy levels a photon which is a particle of light will be given off.

Thus, the correct answer is option B

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4 years ago
In a tug of war, when one team is pulling with a force of 85 N and the other 40 N, what is the net
olya-2409 [2.1K]
85 N - 40 N = 45 N
And depending on direction the greater force is being pulled towards
4 0
3 years ago
Amanda selects a sample of college students. She obtains the students' scores on several personality scales, as well as on a tes
andreyandreev [35.5K]

Answer:

descriptive

Explanation:

In this scenario, Amanda would use descriptive statistics in order to present the raw data. That is because, this type of statistic fulfills her goal of summarizing the raw data, while still providing clear and accurate quantitative analysis regarding the different features of the study through the different tests done. Including the personality scales and creativity test data. Since this provides such information it would best fit the goal of what Amanda is trying to accomplish.

3 0
3 years ago
Electricity and magnetism are? Regulated by one force with positive and negative charges Two separate forces Both of the above
Anarel [89]

Answer:

two separate forces

Explanation:

Electricity and magnetism are two separate forces. However, they come together in a field called electromagnetism. Both types of forces are linked; a moving magnet may push electric charges and trigger electric current. Objects which have both positive and negative charges are mutually repulsive to each other, and those with opposite charges are mutually attractive.

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