If the weight of a submerged object is equal to the buoyant force, what net force acts upon the object? A.) none
B.) upward
C.) sideways
D.) downward

A

Explanation:

The weight is acting downwards where as the buoyant force acting upwards (opposite) direction with equal amount of force. so the opposite forces cancel out each other (because of the force amount being equal) and no net force is acting on the object.

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when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;