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Ad libitum [116K]
2 years ago
13

Given that the rms of a helium atom at a certain temperature is 1350 m s-1, determine the rms speed of an oxygen molecule at thi

s temperature. The molar mass of O2 is 32 g mol-1 and for He is 4 g mol-1.
Physics
1 answer:
monitta2 years ago
5 0

Answer:

Isko moreno vs Alfredy I will gonna go to sleep soon though you were able and willing and ready to play some games ☺️☺️

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Around 27 satelites is used for GPS technology
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3 years ago
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True or False? 13. All living things are made of cells 14. All cells have DNA within their nucleus 15. The cell is the basic uni
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Answer:

1: True

2: False

3: True

4: False

5: True

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2 years ago
You punt a ball straight up at 20 m/s. What is the balls hangtime
Natalija [7]

The hang time of the ball is 4.08 s

Explanation:

The ball is in free fall motion: this means that it is acted upon gravity only, so its acceleration is the acceleration of gravity,

a=g=-9.8 m/s^2

downward (the negative sign refers to the downward direction).

Since this is a uniformly accelerated motion, we can solve the problem by using the following suvat equation:

v=u+at

where

v is the final velocity

u is the initial velocity

a is the acceleration

t is the time

First we calculate the time it takes for the ball to reach the maximum height, where the velocity is zero:

v = 0

Substituting:

u = +20 m/s

a=-9.8 m/s^2

we find t

t=\frac{v-u}{a}=\frac{0-20}{-9.8}=2.04 s

The motion of the ball is symmetrical, so the total time of flight is just twice the time needed to reach the maximum height, therefore:

T=2t=2(2.04)=4.08 s

Learn more about free fall:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

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3 years ago
And are facing each other of the two and the friend are on the separate more you when the moving. Your friend weighs a lot on yo
puteri [66]
Buddy, I think you need to evaluate your question and fix it. Because it's not making any sense, whatsoever.
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3 years ago
During a chemical reaction, Bromine (Br) would be expected to
Andrew [12]

Answer:

During a chemical reaction, Bromine (Br) would be expected to  <u><em>gain 1 valence electron to have a full octet.</em></u>

Explanation:

In the periodic table the elements are ordered so that those with similar chemical properties are located close to each other.

The elements are arranged in horizontal rows, called periods, which coincide with the last electronic layer of the element. That is, an element with five electronic shells will be in the fifth period.

The columns of the table are called groups. The elements that make up each group coincide in their electronic configuration of valence electrons, that is, they have the same number of electrons in their last.

The elements tend to resemble the closest noble gases in terms of their electronic configuration of the last layer, that is, having eight electrons in the last layer to be stable.

Bromine belongs to group 17 (VII A), which indicates that it has 7 electrons in its last shell. So bromine requires more energy to lose all 7 electrons and generate stability, than it does to gain 1 electron and fill in 8 electrons to be stable. So:

<u><em>During a chemical reaction, Bromine (Br) would be expected to  gain 1 valence electron to have a full octet.</em></u>

6 0
2 years ago
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