A water bomber flying horizontally with a velocity of 400 m/s at a height of 10 km above the ground drops a 400 kg water bomb.
*Note: Show all of your work/calculations
(a) Determine the total energy of the water bomb the instant it is released from the
airplane.
(b) Determine the kinetic energy of the water bomb the instant it has fallen half of its
original height
(c) Determine the kinetic energy and the speed of the water bomb just before it hits the
ground.

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants