Answer: Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.
Explanation:
Deoxygenated Blood enters and leaves the right side of the heart then Oxygenated blood enters and leaves the left side of the heart
The development of chloroplast is thought to occur through endosymbiosis.
According to the endosymbiosis, some of the organelles found in modern eukaryotic cells, such as mitochondria and chloroplasts, were previously prokaryotic microorganisms. A non-photosynthetic creature acquired one photosynthetic cell, and the chloroplast was subsequently created.
An organelle known as a chloroplast is crucial to the process of photosynthesis in plants. It contains pigments like chlorophyll and other pigments that are in charge of capturing sunlight. Since each chloroplast has two membranes, other organelles such as mitochondria are referred to as double-membrane organelles. It is believed that cyanobacterial endosymbiosis played a role in the genesis of the chloroplast. Prokaryotic organisms like cyanobacteria have the capacity to prepare their food through the process of photosynthesis.
Learn more about endosymbiosis here:
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Answer:
B
Explanation:
CH4 + O2 →H2O + CO2
Left side
C = 1
H = 4
O = 2
Right side
C = 1
H = 2
O = 3
So find common denominator in this case would be 6 O
CH4 + 3O2 →2H2O + CO2
Left side
C = 1
H = 4
O = 6
Right side
C = 1
H = 4
O = 6
Answer:
(a) The kinetic energy in joules is 194400 J
(b) The energy in calories is 46462.72 calories
(c) When the automobile brakes to a stop, the energy will decrease to 0 J.
Explanation:
(a) Kinetic energy (K.E) is given by the formula below
Where K.E is the kinetic energy in Joules (J)
is the mass in kilogram (kg)
is the velocity in meter per second (m/s)
From the question,
1200 kg
18 m/s
Hence,
becomes
J
This is the energy is joules
(b) To convert this energy to calories (cal)
4.184 J = 1 cal
Then, 194400 J = 
cal
cal
K.E = 46462.72 calories
This is the energy in calories
(c) When the automobile brakes to a stop, the energy will decrease to 0 J.
