1/Rt = 1/R1 + 1/R2 + 1/R3+ 1/R4+ 1/R5
1/Rt = 1/6+ 1/6+1/6+1/6+1/6
1/Rt = 5/6
Rt = 6/5
Rt = 1.2 ohm
so B is the answer
Explanation:
Given:
t = 20 seconds
x = 3000 m
y = 450 m
a) To find the vertical component of the initial velocity , we can use the equation
Solving for ,
b) We can solve for the horizontal component of the velocity as
or
When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. The gas is formed in the reaction is Carbon dioxide. is formed.
The change which happened in this reaction is a chemical change.
Since, in chemical change we can't bring a substance to it's actual form how it was in earlier.
Examples: burning of paper is chemical, since we can't get the fine paper again after it is burnt.
Thus, the above reaction is also a chemical change, since we can't get back the lemon juice how it was earlier.
Answer:
Explanation:
given,
free electron per atom = 5.6 x 10⁻¹⁰
density of silicon = 5.32 g/cm³
molar mass of silicon = 72.59 g/mol
number of moles per cubic centimeter
=
number of atom per cubic centimeter
=
number of free electron per cubic centimeter
=
=