Answer:
During the summer months the sun is always above the horizon and never sets.
During the winter months the sun never rises above the horizon this means there is perpetual darkness for entire winter.
Explanation:
During the summer months the sun is always above the horizon and never sets. The sun moves in a horizontal direction during the day.
In Autumn around September 21, the sun sinks below the horizon, until October the North pole in twilight.
In spring i.e., March 21 the sun rises above the horizon and continues to do so till June 21
During the winter months the sun never rises above the horizon this means there is perpetual darkness for entire winter.
We will first record its mass and then its volume by measuring its dimensions
then divide mass by volume and will get density of regular solid
Answer:
More-massive gas molecules in the sample have lower rms speed than less-massive ones.
Explanation:
The rms speed is defined as the prediction that how fast the molecule travel at a given temperature.
Mathematically, rms speed can be written as,
Here, T is the temperature, M is the mass of gas molecule.
Now from this it is clearly seen that rms speed is inversely related with mass of the gas molecule.
Therefore, gas molecule which posses more mass in the sample have smaller rms speed than less-massive ones.
Given: Mass m = 400 Kg; Height h = 3 m; g = 10 m/s²
Required: Work = ?
Formula: Work = Force x distance F = ma a = g F = mg
W = fd
W = mgh
W = (400 Kg)(10 m/s²)( 3 m)
W = 12,000 Kg.m²/s²
W = 12,000 J