Answer:
The answer is Letter B The car travel at a constant veloc
95 degrees Fahrenheit in Celsius scale is 35 degrees Celsius
Answer:
Frequency
Explanation:
Doesn't say how often he exercises
Answer:
The moist air mass would be denser
Explanation:
Density is defined as mass per unit volume. Hence the density of a substance (solid, liquid or gas) is directly proportional to its mass and inversely proportional to the volume occupied.
The mass of a gas is the product of its number of moles and its molar mass (mass = number of moles × molar mass), which indicates that the mass is directly proportional to molar mass, so the higher the molar mass, the higher the mass of different gases at equal volumes, temperature and pressure.
From the information given, the molar weight of dry air = 29g/mole.
The molar weight of moist air = molar weight of dry air + molar weight of water vapour = 29 + 18 = 47g/mole.
Therefore since higher molar mass transits to higher mass, it can be said that moist air of molar mass 47g/mole is denser than dry air of molar mass 29g/mole at equal volume, temperature and pressure.
Simple picture the two gasses in two transparent jars, the heavier gas (moist air) settles more at the bottom of the jar, and has less random motion hence is more compressed and denser, than dry air that has more freedom to move randomly because of its lesser weight.
Answer:
Acceleration is the rate of change of velocity.
When the velocity of an object does not change, i.e., when the velocity is constant, the acceleration is <em>zero</em>.
Mathematically (differential form),
<h3><u>Zero</u> is the right answer.</h3>
