The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. ... Most precipitation falls back into the oceans or onto land, where, due to gravity, the precipitation flows over the ground as surface runoff.
Answer:
B
Explanation:
the number of protons never changes even if the atomic mass changes
Answer:
70.8 mmHg
Explanation:
To find partial pressure of carbon dioxide we first find the mole fraction of carbon dioxide
n (carbon dioxide) = 5/44.01 g/mol = 0.11361 mol
n (Helium) = 3.75 g/4 g/mol = 0.9375 mol
The partial pressure of carbon dioxide will be the mole fraction of carbon dioxide multiplied by the total pressure
Partial pressure = 0.11361g/(0.11361g + 0.9375 g)* 655 mmHg
= 70.8 mmHg
I say Answer choice A because it is a straight line and it hasn't gone under all those reactions yet.
Answer:
Explanation:
Potential energy can be found by multiplying the mass by the height by the gravitational acceleration.
The mass is 45 kilograms. The height is 2 meters. The gravitational acceleration on Earth is 9.8 meters per seconds squared.
Substitute the values into the formula.
Multiply.
1 kg*m/s^² is equal to 1 Newton (N). Substitute N in for kg*m/s²
1 Newton meter (N*m) is equal to 1 Joule (J). Our current answer is equivalent to 882 Joules.
The sled's potential energy is 882 Joules.
