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Physics, 23.06.2019 02:30
Asatellite with an orbital period of exactly 24.0 h is always positioned over the same spot on earth. this is known as a geosynchronous orbit. television,communication, and weather satellites use geosynchronous orbits. at what distance would a satellite have to orbit earth in order to have a geosynchronous orbit?
Answers: 2
Physics, 23.06.2019 07:30
Aspring has a relaxed length of 33 cm (0.33 m) and its spring stiffness is 6 n/m. you glue a 76 gram block (0.076 kg) to the top of the spring, and push the block down, compressing the spring so its total length is 15 cm. you make sure the block is at rest, then at time t=0 you quickly move your hand away. the block begins to move upward, because the upward force on the block by the spring is greater than the downward force on the block by the earth. calculate y vs. time for the block during a 0.09-second interval after you release the block, by applying the momentum principle in three steps each of 0.03-second duration.
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Physics, 23.06.2019 12:30
The lid of a pressure cooker forms a nearly airtight seal. steam builds up pressure and increases temperature within the pressure cooker so that food cooks faster than it does in an ordinary pot. the system is defined as the pressure cooker and the water and steam within it. if 2.0 g of water is sealed in a pressure cooker and then vaporized by heating, and 5127 j must be added as heat to completely vaporize the water, what is the change in the system’s internal energy? answer in units of j.
Answers: 2
Physics, 24.06.2019 05:00
While a guitar string is vibrating, you gently touch the midpoint of the string to ensure that the string does not vibrate at that point. which normal modes cannot be present on the string while you are touching it in this way?
Answers: 3
Mathematics, 18.04.2020 00:22
Mathematics, 18.04.2020 00:22
Mathematics, 18.04.2020 00:22
English, 18.04.2020 00:22
Biology, 18.04.2020 00:22
Mathematics, 18.04.2020 00:22
Mathematics, 18.04.2020 00:22
Mathematics, 18.04.2020 00:22
Mathematics, 18.04.2020 00:22