3. An object accelerates from rest, with a constant acceleration of 4.5 m/s, what will its velocity be after 30 s?

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.

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

i think its d if wrong im sorry

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.