Physics, 17.12.2019 20:31 gearchanger52p02zf8
The blades of a wind turbine are 30 m in length and rotate at a maximum rotation rate of 20 rev/min. (a) if the blades are 6000 kg each and the rotor assembly has three blades, calculate the angular momentum of the turbine at this rotation rate. (b) what is the torque require to rotate the blades up to the maximum rotation rate in 5 minutes?
Answers: 3
Physics, 21.06.2019 21:00
50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.
Answers: 1
Physics, 22.06.2019 02:30
Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.
Answers: 2
Physics, 22.06.2019 07:00
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
The blades of a wind turbine are 30 m in length and rotate at a maximum rotation rate of 20 rev/min....
Mathematics, 20.11.2020 23:10
History, 20.11.2020 23:10
English, 20.11.2020 23:10
Mathematics, 20.11.2020 23:10
Mathematics, 20.11.2020 23:10
Biology, 20.11.2020 23:10
Advanced Placement (AP), 20.11.2020 23:10
Mathematics, 20.11.2020 23:10
Computers and Technology, 20.11.2020 23:10
Mathematics, 20.11.2020 23:10
Mathematics, 20.11.2020 23:10
Mathematics, 20.11.2020 23:10