An undiscovered planet, many lightyears from earth, has one moon in a periodic orbit. this moon takes time tt on average to complete one nearly circular revolution around the unnamed planet. if the diameter of the moon's orbit is , calculate the moon's radial (or centripetal) acceleration .

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Which articulations allow for greatest range of motion?