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3 years ago

Describe one situation in which forces are created>

1 answer:

7 0

If the measurement is in joules then you can push something or pull something as long as you are moving the object. Formula: f*n force times newtons

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Which columns are mislabeled?

Aleks [24]

Answer:

first order date and most recent order date

Explanation:

it was switched. column 5 should be most recent order date because it's 2020 while column 6 should be first order date because it was in 2019

8 0

3 years ago

Read 2 more answers

Observations of the Crab Nebula taken over several decades show that gas blobs that are now 100 arcseconds from the center of th

Oksi-84 [34.3K]

Answer:

Estimation: year 1110.

Explanation:

We need to know how much time it takes to move 100 arcseconds if it moves at 0.11 arcsecond per year. Similarly to any velocity equation $v=\frac{d}{t}$ , where in our case the distances are angular, we will obtain the time by doing:

$t=\frac{d}{v}=\frac{100arc}{0.11arc/year}=909 years$

Which, considering from 2019, the explosion ought to have been observed around 1110 (in reality it was observed by Chinese astronomers in 1054).

6 0

3 years ago

Five hundred joules of heat are added to a closed system. The initial internal energy of the system is 87 J, and the final inter

Aleonysh [2.5K]

We can solve the problem by using the first law of thermodynamics:

$\Delta U= Q-W$

where

$\Delta U$ is the variation of internal energy of the system

Q is the heat added to the system

W is the work done by the system

In this problem, the variation of internal energy of the system is

$\Delta U=U_f-U_i=134 J-87 J=47 J$

While the heat added to the system is

$Q=500 J$

therefore, the work done by the system is

$W=Q-\Delta U=500 J-47 J=453 J$

5 0

3 years ago

Read 2 more answers

As electrons are passed through the system of electron carriers associated with photosystem ii

nexus9112 [7]

The answer is “it is used to establish and maintain a proton gradient.”

4 0

4 years ago

Which statement below is true?

Veronika [31]

THe answer will be C

because if you put somethin ht next to something cold it will become cooler and if you be two things that are hot next to each other they will remain hot.

3 0

3 years ago