An apple falls from a tree. its position, at 0.3 second intervals, is shown below. at 0.0 seconds, the apple has not yet fallen, and at 0.9 seconds, the apple is about to hit the ground.

at which time does the apple possess the least potential energy?

options:

0.0 seconds

0.3 seconds

0.6 seconds

0.9 seconds

Asmall blob of putty of mass m falls from the ceiling and lands on the outer rim of a turntable of radius r and moment of inertia i0 that is rotating freely with angular speed ω0 about its vertical fixed-symmetry axis. (use any variable or symbol stated above as necessary.)

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

How can you increase the strength of an electromagnet?