02 is oxygen gas , having 2 particles of O, whereas F2 is Fluorine gas having two particles of F.
Answer:
option E
Explanation:
The correct answer is option E
Writing the relation between wavelength and frequency

f is the frequency
v is the velocity of wave
λ is the wavelength
From the above expression we can clearly see that frequency is inversely proportional to wavelength.
When the distance between the two successive crest is decreased then wave length of the wave also decrease.
If wavelength of the wave decreases then frequency of the wave increase.
hence, we can say that both wavelength and the frequency changes.
Hello
Let's convert first the height from foot to meters:

This is the space covered by the ball in its accelerated motion, where the acceleration is the gravitational acceleration:

The law of motion is given by

Re-arranging, we can get the total time of the motion:

which is the time the ball takes to hit the ground.
Answer:
A) 100°C
B) 211 g
Explanation:
Heat released by red hot iron to cool to 100°C = 130 x .45 x 645 [ specific heat of iron is .45 J /g/K]
= 37732.5 J
heat required by water to heat up to 100 °C = 85 x 4.2 x 80 = 28560 J
As this heat is less than the heat supplied by iron so equilibrium temperature will be 100 ° C. Let m g of water is vaporized in the process . Heat required for vaporization = m x 540x4.2 = 2268m J
Heat required to warm the water of 85 g to 100 °C = 85X4.2 X 80 = 28560 J
heat lost = heat gained
37732.5 = 28560 + 2268m
m = 4 g.
So 4 g of water will be vaporized and remaining 81 g of water and 130 g of iron that is total of 211 g will be in the cup . final temp of water will be 100 °C.
Answer:
The answer is Muscular endurance
Explanation:
It is this because your seeing how long your muscles can with stand. I answered by guessing lol.