Which box depicts the simplest level of organization? A) P B) Q C) R D) S
1 answer:
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Explanation:
It is given that,
The mass of bob, m = 77 kg
Length of the string, L = 10 m
Angle made by the string with the vertical,
(a) Let T is the force exerted by the string on the pendulum. At equilibrium,
T = 755.63 N
The horizontal component of the force is given by,
The vertical component of the force is given by,
(b) Let a is the radial acceleration of the bob. It can be calculated as :
Hence, this is the required solution.
The mass percent composition of aluminum is 52.9% in aluminum oxide.
Mass of the aluminum = 3.53 g
Mass of the aluminum oxide = 6.67 g.
The mass percent of a substance is the mass of the substance divided by the mass of the compound into 100.
Aluminum reacts with oxygen to form aluminum oxide.
The overall balanced equation for the reaction is,
The mass percent composition of aluminum in the aluminum oxide is,
= 52.9 %
Therefore, the mass percent composition of aluminum is 52.9% in aluminum oxide.
To know more about aluminum oxide, refer to the below link:
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