In wave tanks, students investigated how water waves are affected by barriers and the depth of the water. They made diagrams of their observations
Which diagram shows reflection of water waves in the wave tank?
Solid Barrier
Barrier with
One Opening
O A
Incoming
Waves
Incoming
Waves
Deep
Water
Shallow
Water
Barrier with
Two Openings
D.
B.
Incoming
Waves
Incoming
Waves

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.