A satellite orbiting Earth is powered by sunlight converted into electricity. The solar cell system efficiency, including temporary energy storage and a safety factor for possible cell failures, is 5%. Sunlight provides 1.4 kW/m2 in the vicinity of Earth. What is the area of the solar cell array if the power requirement is 1400 W

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.