Boxes are transported by a conveyor belt with a velocity v0 to a fixed incline at a, where they slide and eventually fall off at b. knowing that μk = 0.40, determine the velocity of the conveyor belt if the boxes leave the incline at b with a velocity of 14 ft/s.

Blank liquids and gases exert a buoyant force on objects placed in them

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.