B) They are all sources of electricity
Hope it helps!!
Answer:
It will take the system 0.63sec to complete one full oscillation
Explanation:
The expression for period of a body in simple harmonic motion is
T=2*pi√m/k
Where T Is the period
m is the mass of the body
K is the spring constant
Given data
m = 7.5kg
e=15cm
k=750j/m2
Substituting our data into the expression
T=2*3.142 √ 7.5/750
T=6.284*0.1
T=0.63sec
The correct options are:
<span>B. Radiation is heat flowing in waves.
C. Conduction is heat flowing between two objects that are touching each other.
In fact, radiation is heat transferred by electromagnetic waves, while conduction is the heat transfer between touching objects (the particles of one object collide with the particle of the other object, and so heat is transferred via the transfer of kinetic energy between the molecules).
Instead, option A is wrong (because conduction </span>is the heat transfer between touching objects) and option D is wrong because convection is the heat flowing when a liquid or a gas carries the heat.
I think the correct answer from the choices listed above is the third option. The magnetic quantum number of an electron (m) designates the orientation in space of the orbital (electron cloud). <span>This number divides the subshell into individual orbitals which hold the electrons; there are 2l+1 orbitals in each subshell. </span>
The chemical formula for water, H2o means that each water molecule contains one oxygen atom and two hydrogen atoms. This is the formula for water which has a liquid form, a solid form as ice, and also a gaseous form as water vapor.