Answer:8.125 kg
Explanation:
Given
deceleration of elevator 
suppose T is the tension in the cord
therefore net force on lamp is


direction of a and g is in the same direction





Answer: c Delta
Explanation:
A delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment.
Hope this helps!!
B, do earthworms prefer bright light or darkness!