Answer: 2nd option, Rotation
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Answer:
rotation
Explanation:
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Answer:
The pan having beakers with steel ball will go down.
Explanation:
Both steel ball and plastic ball will experience buoyant force in upward direction . These forces will have same magnitude because they displace same volume of water. Both of them experience reaction force of buoyant force acting in downward direction which will try to lower the pan equally. But in case of plastic ball which is tied to the bottom , the tense string will apply a force equal to buoyant force in upward direction on the bottom of the beaker.
This force will balance the reaction buoyant force acting on the bottom of beaker in downward direction . Hence this pan will remain balanced but the other pan will go down.
Icebergs are composed of freshwater and freshwater is more dense then salt water.
Icebergs are colder then the ocean water and cold water is less dense then warm water.
Icebergs are colder then the ocean water and cold water is more dense then salt water.
B. remains constant
C. increases
D. decreases
The coefficient of friction between the 20 kg box and the floor is 0.2
We'll begin by calculating the acceleration of the box. This can be obtained as follow:
Initial velocity (u) = 10 m/s
Final velocity (v) = 0 m/s
Distance (s) = 25 m
v² = u² + 2as
0² = 10² + (2 × a × 25)
0 = 100 + 50a
Collect like terms
0 – 100 = 50a
–100 = 50a
Divide both side by 50
Finally, we shall determine the coefficient of friction. This can be obtained as follow:
Mass (m) = 20 Kg
Acceleration (a) = –2 m/s²
Acceleration due to gravity (g) = 10 m/s²
Frictional Force (F) = –ma = – (20 × –2) = 40 N
Normal reaction (N) = mg = 20 × 10 = 200 N
Therefore, the coefficient of friction between the box and the floor is 0.2
Learn more: brainly.com/question/11902512
The coefficient of friction between the box and the floor is 0.204.
Given data:
The mass of box is, m = 20 kg.
The initial speed of box is, u = 10 m/s.
The sliding distance is, s = 25 m.
The linear force acting on the fox is providing it necessary friction. Then,
Here, a is the linear acceleration and is the coefficient of friction between the box and the floor.
Applying the third kinematic equation of motion as,
Then,
Thus, we can conclude that the coefficient of friction between the box and the floor is 0.204.
Learn more about frictional force here: