Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which of the following is true about their kinetic energies as they reach the ground?
1.Bob's kinetic energy is greater than Esther's.
2.Esthers kinetic energy is greater than Bob's.
3.They have the same kinetic energy.
4.The answer depends on the shape of the slide.
Question 2Three identical balls are thrown from the top of a building, all with the same initial speed. The first ball is thrown horizontally, the second at some angle above the horizontal, and the third at some angle below the horizontal as in the figure below. Neglect air resistance, rank the speeds of the balls as they reach the ground, from fastest to slowest.
Leopard in a tree
Mass Loss from a Supermassive Star
When the PCM commands 50% duty cycle, the oil flow through the phaser drops to zero.
Disitive Time For Fish
Gravitational Force Due to a Distribution of Mass problem 2
Mass spectrometry for identifying an unknown protein isolated from a 2D gel