Physics, 08.07.2019 18:10 mariamoore198060
Objects moving along a circular path have a centripetal acceleration provided by a net force directed toward the center. identify the force(s) providing the centripetal acceleration in each of these cases: a planet in circular orbit around its sun; a car going around an unbanked, circular turn; a rock tied to a string and swung in a vertical circle, as it passes through its highest point; and a dry sock in a clothes dryer as it spins in a horizontal circle. (select all that ) a planet in circular orbit around its sunfrictiongravitynormal forcetension(b) a car going around an unbanked, circular forcetension(c) a rock tied to a string and swung in a vertical circle, as it passes through its highest forcetension(d) a dry sock in a clothes dryer as it spins in a horizontal forcetension
Answers: 3
Physics, 22.06.2019 10:30
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is Ξs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
Physics, 22.06.2019 19:10
3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0
Answers: 2
Physics, 23.06.2019 00:20
The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 Ã 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
Answers: 2
Objects moving along a circular path have a centripetal acceleration provided by a net force directe...
Computers and Technology, 01.03.2020 23:41
History, 01.03.2020 23:41
Mathematics, 01.03.2020 23:41
Mathematics, 01.03.2020 23:41
Mathematics, 01.03.2020 23:41
Mathematics, 01.03.2020 23:42
History, 01.03.2020 23:42
Mathematics, 01.03.2020 23:42
Mathematics, 01.03.2020 23:42
English, 01.03.2020 23:42
English, 01.03.2020 23:42