Physics, 16.04.2020 00:34 rosemary909
A fan is designed to last for a certain time before it will have to be replaced (planned obsolescence). The fan only has one speed (at a maximum of 700 rpm), and it reaches the speed in 4.0 s (starting from rest). It takes the fan 11.0 s for the blade to stop once it is turned off. The manufacturer specifies that the fan will operate up to 1 billion rotations. Andre lives in a hot climate, works outside of the home from approximately 8:00 am to 5:00 pm, Monday through Friday, does not own an air conditioner, and can't sleep with the fan running. Estimate how many hot days hot Andre will be able to use the fan, rounded to the nearest day. hot= days
Answers: 3
Physics, 22.06.2019 03:00, chastynpatrick
If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star
Answers: 3
Physics, 22.06.2019 11:00, Arielledt10
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
Physics, 22.06.2019 17:30, janicemaxwell123
Does heating a metal wire increase or decrease its electrical resistance? why?
Answers: 1
A fan is designed to last for a certain time before it will have to be replaced (planned obsolescenc...
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