Дано:
S1 = 50 км
t1 = 4 часа
S2 = 100 км
t2 = 1 час
Найти:
Vср - ?
Решение:
Vср = S/t
Sср = S1 + S2 = 50 + 100 = 150 км
tср = t1 + t2 = 4 + 1 = 5 часов
Vcр = 150/5 = 30 км/ч
Ответ:
30 км/ч
Elements are composed of single atoms and compounds are composed of different elements.
<u>Explanation:</u>
A single atom generally forms an element. It is an individual particle or atom present in the periodic table, mostly it refers with symbol. When two or more elements of different types or same types combine together, it is called as compound.
The compounds can be heterogeneous compounds and homogeneous compounds. Depending upon the combination of elements, this classification is done for compounds. The elements can form a compound by ionic, covalent, metallic or hydrogen bonding. The molecules can also be termed as compounds.
Answer: from charge.
Explanation:
Given
The magnitude of the first charge is
The magnitude of the second charge is
charge must be placed in between the two charges to establish equilibrium
The electrostatic force is given by
Equilibrium will be established when force by both the charges balance out each other. Suppose is placed at a distance of cm from . So, we can write
Canceling similar terms
Thus, the equilibrium position is from charge.
Last One.... If Im not Wrong!
Burning of Fossil Fuels, Increase the CO2 And therefore the Green Effect!!
Answer:
In Principia, Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint until it was superseded by the theory of relativity.