Answer:
Raindrops start to form in a roughly spherical structure due to the surface tension of water. This surface tension is the "skin" of a body of water that makes the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.
A. Equal and opposite forces
Explanation:
History law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exert an equal and opposite force on object A
Answer:
The acceleration of the proton is 1.403 x 10⁹ m/s²
Explanation:
Given;
speed of proton, v = 7.7 m/s
magnitude of magnetic field, B = 1.9 T
Magnetic force of moving proton is given by;
F = qvBsinθ
Centripetal force on the moving proton is given by;
where;
q is charge of the proton = 1.602 x 10⁻¹⁹ C
m is mass of proton = 1.67 x 10⁻²⁷ kg
Therefore, the acceleration of the proton is 1.403 x 10⁹ m/s²
<span>Calcium fluoride is produced. It is one Calcium atom bonded to two fluoride atoms. The Calcium atom receives one electron from one fluoride and a second electron from the second fluoride atom. As a result of receiving the two electrons, Calcium will have a negative charge. The two fluorides become positive from losing an electron. The positive and negative charge attraction keeps the atoms close together to form an ionic bond.</span>
Answer:
A. To find increase in internal energy
We use
CV= f/2* R
=20.77J/molK
So change in internal energy is
nCvdt
So substituting
= 2 x 20.77x 60K
= 2493J
B.
We know that molar specific heat increase by R/2
So CV= (f/2+1)R
Which is 29.1J/milk
So
Increase in internal energy will be
nCvdt
= 2* 29.1*60
= 3490.2J
C. the translational energy is 3/2R
And the total molar specific heat capacity is 7/2R
So the fraction of energy in b due to K.E will be
3/7 * 3490.2
=1495.8J
