Volume of sphere =
where, =
r = radius of sphere
Put the given value of volume in above formula i.e. ()
Thus,
=
=
=
Thus, radius of the carbon atom is
Answer:
353kg
Explanation:
2000 x 0.1765 = 353kg
for every 1 cubic metre of helium there is 0.1765 kg of it
the balloon is holding 2,000 cubic metres of the helium.
That means that there are 2000 times of 0.1765kg of helium in the balloon
so you times 0.1765kg by 2000
Answer: Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. The gravitational pull of the sun and moon on the earth also causes waves.
High and low tides are caused by the Moon. The Moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the Moon and the side farthest from the Moon. These bulges of water are high tides.
If the tides is wrong then put “Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). ... Tidal forces are based on the gravitational attractive force”. :)))
Answer:
44 years will take for 10 grams of Actinium to decay until there were only 2.5 grams.
Explanation:
The half life it tell you about the time in which half of the quantity of the isotope will decay.
time (years) quantity of isotope (grams)
0 10
22 5
44 2.5
Molar mass Zinc chloride
ZnCl2 = 65.3 + 35.5 * 2 = 136.3 g/moles
1 mole ZnCl2 ------------- 136.3 g
x mole ZnCl2 ------------- 302.48 g
x = 302.48 / 136.3
x = 2.219 moles
1 mole --------------- 6.02x10²³ units
2.219 moles --------- y units
y = 2.219 * 6.02x10²³
y =
formula units
hope this helps!.