Physics, 07.01.2020 19:31 nschavez123
Arock climber uses a pulley system to pull himself 10 m up a tricky part of a rock face. if the pulley system has a mechanical advantage of 3 and the climber weighs 786 n, what force does he use?
Answers: 2
Physics, 22.06.2019 09:30
Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential
Answers: 2
Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
Physics, 22.06.2019 13:50
Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?
Answers: 3
Arock climber uses a pulley system to pull himself 10 m up a tricky part of a rock face. if the pull...
Social Studies, 17.12.2020 23:20
Physics, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20
Computers and Technology, 17.12.2020 23:20
Social Studies, 17.12.2020 23:20
Arts, 17.12.2020 23:20
Mathematics, 17.12.2020 23:20