A: A disease which infects the baby mice shortly after birth
A truck moves 60 kilometers east from point A to point B. At point B, it turns back west and stops 15 kilometers away from point A.
Displacement=15km east
Distance=60+(60-15)=105km
ans is A. The total distance is 105 kilometers, and the total displacement is 15 kilometers east.
Answer:
Work done = 2218.97 kJ
Explanation:
Work = Force x Displacement.
Force = Weight of water.
Weight of water = Mass of water x Acceleration due to gravity.
Mass of water = Volume of water x Density of water.
Volume of water = Base area of swimming pool x Depth of water.
Base area of swimming pool
Depth of water = 1.5 m
Volume of water
Mass of water = 75.40 x 1000 = 75400 kg
Weight of water = 75400 x 9.81 = 739656 N
Work done = 739656 x 3 = 2218.97 kJ
Potassium will have the greatest atomic size because of its number of shells, followed by sodium which 1 valence electron compared to magnesium the same number of shells but 2 valence electrons.
<h3>
Relative size of the atoms</h3>
The relative size of the atoms is determined from the number of shells and valence electron contained in the atom.
Sodium, 11 ----> 2, 8, 1
Magnesium, 12 ----> 2, 8, 2
Potassium, 19, -----> 2, 8, 8, 1,
Potassium will have the greatest atomic size because of its number of shells, followed by sodium which 1 valence electron compared to magnesium the same number of shells but 2 valence electrons.
Learn more about atomic size here: brainly.com/question/15255548
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Answer:
Zero
Explanation:
Since momentum is a product of mass and velocity of an object, in this case when the object stops its final velocity is zero hence despite the magnitude of its mass, multiplied by zero the final momentum is equivalent to zero. However, in case after experiencing momentum its velocity reduces but doesn’t come to a rest, the momentum will have a value. For this question, the first case applies hence momentum value is zero.