Answer: When objects fall to the ground, gravity causes them to accelerate. Acceleration is a change in velocity, and velocity, in turn, is a measure of the speed and direction of motion. Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls.
Explanation:
Explanation:
Expression for the coefficient of thermal expansion is as follows.
where, V = initial volume
= Final volume - initial volume
= (712.6 - 873.6) 
= -161
Now, we will calculate the change in temperature as follows.
= Final temperature - Initial temperature
= (10 + 273) K - (70 + 273) K
= 283 K - 343 K
= -60 K
Substituting these values into the equation as follows.
= 0.00307 
It is known that for non-ideal gases the value of alpha is 0.366% which is 0.00366 per Kelvin. As it is close to our result, hence the given sample of gas is a non-ideal gas.
The partial pressure of the oxygen gas in the mixture is calculated is calculated as follows
total pressure of oxygen + nitrogen
the partial pressure of oxygen percentage of 0xygen / total percentage x total pressure
= 10/100x800= 80 mmHg
Answer:
The correct option is: (D) All of the above
Explanation:
An atomic orbital is the three-dimensional space or region around the nucleus of an atom, where the probability of finding an electron is maximum.
The s-orbitals are the atomic orbitals that have azimuthal quantum number, l = 0. These atomic orbitals have <u>spherical shape and symmetry.</u>
The p-orbitals are the atomic orbitals that have azimuthal quantum number, l = 1. These atomic orbitals have a <u>dumbbell shape.</u>
The atomic orbitals that are closer to the nucleus, have lower energy. Therefore, we can say that the <u>s-orbitals are lower in energy than the p-orbitals.</u>
