The kinetic energy of an object can be determined using the equation , where is the kinetic energy, is the mass, and is the spee
1 answer:
Answer:
0.5kg
Explanation:
Given parameters:
Speed of the object = 12m/s
Kinetic energy = 36J
Unknown:
Mass of the object = ?
Solution:
Kinetic energy is the energy due to the motion of a body. It is mathematically expressed as;
K.E = m v²
Insert the parameters and solve;
36 = x m x 12²
36 = 72m
m = 0.5kg
You might be interested in
<u>Answer:</u> The number of carbon and oxygen atoms in the given amount of carbon dioxide is and
respectively
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
Given mass of carbon dioxide gas = 3.45 g
Molar mass of carbon dioxide gas = 44 g/mol
Putting values in above equation, we get:
1 mole of carbon dioxide gas contains 1 mole of carbon and 2 moles of oxygen atoms.
According to mole concept:
1 mole of a compound contains number of molecules
So, 0.0784 moles of carbon dioxide gas will contain number of carbon atoms and
number of oxygen atoms
Hence, the number of carbon and oxygen atoms in the given amount of carbon dioxide is and
respectively