Answer:
I think is D
Explanation:
Please mark me as brainliest
Answer:
Physical Properties of Carbon:
Carbon is a unique element. It occurs in many forms. Some examples of the pure form of carbon are coal and soot.
It is soft and dull grey or black in colour.
One of the most important compounds of carbon is the charcoal, which is formed when carbon is heated in the absence in of air.
It occurs in a number of allotropic forms. Allotropes are nothing but forms of an element with varying physical as well as chemical properties.
The density of the different forms of carbon depends upon the origin of these elements. You will find some forms of carbon which are pure and some forms which are not pure like coal which is the mixture of both carbon and hydrogen.
Chemical Properties of Carbon
Carbon compounds generally show 4 reactions, they are
Combustion reaction
Oxidation reaction,
Addition reactions
Substitution reaction.
As we all know that carbon in all forms needs oxygen, heat, and light and forms carbon dioxide. When it is burned in air to give carbon dioxide, it is called as combustion.
Let us get the concept of this using some examples when it is burnt in the air: When methane CH4 is burnt in the presence of oxygen it gives us carbon dioxide, heat, and light.
Explanation:
energy is the ability to do work while work is the dot product of force and displacement
Answer:
19129.5 N
1.1831 m
Explanation:
m = Mass of person = 65 kg
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration = 30g
g = Acceleration due to gravity = 9.81 m/s²
Force is given by
The force on the person is 19129.5 N
The distance traveled if brought to rest is 1.1831 m
The answer is D. <span>d. Event 4 may cause a hurricane and Event 2 may cause a tornado.
Event 4, the difference in pressure cause by this will resulted in the air to start moving uncontrollably, which ending up in Hurricane
Event 2, this will create energy needed for thunderstorm to be formed which could lead to Tornado</span>