Answer:
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Explanation:
An object that is partly, or completely, submerged experiences a greater pressure on its bottom surface than on its top surface. This causes a resultant force upwards. This force is called upthrust . The upthrust force is equal in size to the weight of the fluid displaced by the object.
Buoyancy or upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object.It is the force that pushes an object up. The upthrust, or buoyancy, keeps ships afloat. The upthrust, or buoyancy, keeps swimmers on top of the water.
Answer:
0.52 N
Explanation:
k = 13 N/m
x = 0.04 m
Plug those values into Hooke's Law:
F = kx
F = (13 N/m)(0.04 m)
F = 0.52 N
Answer:
The distance from the airport to the corporate offices is 110 miles.
Explanation:
Let d be the distance from the airport to the office (at a velocity of 75 mph), the person travels an entire distance of 156 miles, 156-d is the distance from home to the airport (at a velocity of 30 mph).
The equaiton for velocity is:
From this you can find the equation for the time:
You can use the total time to find the distance d because you know that the time between the home and the airport plus the time between the airport and the work is 3 hours:
You can solve the equation to find d:
Now you have that the distance between the airport and the office is 110 miles.
To solve the problem, it will be necessary to define the rotational and translational kinetic energy in order to determine the relationship between the two. Rotational energy is defined as,
Here,
I = Moment of Inertia
= Angular velocity
Now the translational energy will be,
Here,
m = Mass
v = Velocity
Therefore the relation between them will be,
Applying the moment of inertia of a sphere we have,
Therefore the ratio will be 0.01077
Answer: When the concentration of nanosilver particles in water is increased, the population of Daphnia magna will decrease
Explanation:
The statement below that is the most likely testable hypothesis based on the information provided is that when there is an increase in the concentration of nanosilver particles in water, the population of Daphnia magna will decrease.
Since we are informed that the particles may decrease survival in many aquatic organisms, it simply means that an increase in the particles in water will bring about the decrease in the Daphnia magna, which is the tiny freshwater crustacean.