Physics, 09.10.2019 20:30 laurencollett4838
A60-kg man uses an electric chair to carry him up the stairs. if the chair has a mass of 200 kg, what power must a motor generate to transport the man and chair 5 m vertically in 10 seconds, assuming a constant velocity and ignoring all forces except gravity? 900 w 1300 w 400 w 1200 w
Answers: 2
Physics, 22.06.2019 06:30
Organelles are 1. responsible for producing power for the cell 2. tiny structures in the cell that carry out the cell's activities 3. responsible for digestion in the cell 4. found outside of the membrane
Answers: 1
Physics, 22.06.2019 09:50
If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
Answers: 3
Physics, 22.06.2019 11:30
Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)
Answers: 3
Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.
Answers: 2
A60-kg man uses an electric chair to carry him up the stairs. if the chair has a mass of 200 kg, wha...
Mathematics, 28.09.2019 08:00
Health, 28.09.2019 08:00
Mathematics, 28.09.2019 08:00
History, 28.09.2019 08:00
Health, 28.09.2019 08:00
French, 28.09.2019 08:00
Health, 28.09.2019 08:00
English, 28.09.2019 08:00
Mathematics, 28.09.2019 08:00
History, 28.09.2019 08:00
Mathematics, 28.09.2019 08:00
Mathematics, 28.09.2019 08:00
Physics, 28.09.2019 08:00