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Dvinal [7]
3 years ago
13

Why all traveller prefer to travel easily in the morning and night and not when the sun is hot​

Physics
1 answer:
eduard3 years ago
4 0

Answer:

Travelers prefer to travel in morning because arthat time the temperature ️ is not too hot and they can easily travel here and there without any problem. and they also prefer to travel in night because moderate temperature ....

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(forces and motion) explain in 3-2 sentences why acceleration is interesting.
Luden [163]

Answer:

  • Acceleration is a vector and is the rate at which an object changes its velocity. Acceleration is not going fast.
  • If a person is moving fast but not changing speed, he is not accelerating.
  • The person or object has to be going fast sometimes, faster sometimes, or slower sometimes.
7 0
2 years ago
What is the resultant of 5N force pointing north and 7N force pointing south? Do not forget include direction
balandron [24]

Given forceF

1

=5N and F

2

=7N and θ=60

We know resultant force F=

5

2

+7

2

+2(5)(7)cos60

F=

25+49+35

F=

109

it's your answer

4 0
3 years ago
What type of solar radiation does not reach the surface of the earth?
tensa zangetsu [6.8K]
Electromagnetic waves can travel in vaccum but mechanical wave does not
5 0
2 years ago
Which of the following statements about electromagnetic radiation it true? A.electromagnetic waves with long wavelength are more
mina [271]

Answer:

Electromagnetic radiation is an electric and magnetic disturbance traveling through space at the speed of light (2.998 × 108 m/s). It contains neither mass nor charge but travels in packets of radiant energy called photons, or quanta.

7 0
2 years ago
Use technology and the given confidence level and sample data to find the confidence interval for the population mean muμ. Assum
Ronch [10]

Answer:

a.  μ_{95%} = 3 ± 1.8 = [1.2,4.8]

b. The correct answer is option D. No, because the sample size is large enough.

Explanation:

a. The population mean can be determined using a confidence interval which is made up of a point estimate from a given sample and the calculation error margin. Thus:

μ_{95%} = x_±(t*s)/sqrt(n)

where:

μ_{95%} = = is the 95% confidence interval estimate

x_ = mean of the sample = 3

s = standard deviation of the sample = 5.8

n = size of the sample = 41

t = the t statistic for 95% confidence and 40 (n-1) degrees of freedom = 2.021

substituting all the variable, we have:

μ_{95%} = 3 ± (2.021*5.8)/sqrt(41) = 3 ± 1.8 = [1.2,4.8]

b. The correct answer is option D. No, because the sample size is large enough.

Using the the Central Limit Theorem which states that regardless of the distribution shape of the underlying population, a sampling distribution of size which is ≥ 30 is normally distributed.

4 0
3 years ago
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