Physics, 27.11.2019 05:31 montgomerykarloxc24x
Ahelicopter, starting from rest, accelerates straight up from the roof of a hospital. the lifting force does work in raising the helicopter. (a) what type(s) of energy is (are) changing? ls each type increasing or decreasing ? why? (b) how is (are) the type(s) of energy that is (are) changing related to the work done by the lifting force? (c) if you want to determine the average power generated by the lifting force, what other variable besides the work must be known? an 810-kg helicopter rises from rest to a speed of 7.0 m/s in a time of 3.5 s. during this time it climbs to a height of 8.2 m. what is the average power generated by the lifting force?
Answers: 1
Physics, 21.06.2019 22:30
Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball
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Physics, 22.06.2019 12:20
Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
Physics, 22.06.2019 23:00
The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?
Answers: 1
Physics, 23.06.2019 00:30
What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr
Answers: 2
Ahelicopter, starting from rest, accelerates straight up from the roof of a hospital. the lifting fo...
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