Physics, 28.08.2019 08:30 channyfilthy8735
In which of the following scenarios is the greatest amount of work accomplished?
1)a girl weighing 70 n goes up a flight of stairs that is 4.0 meters high carrying a box that weighs 2.0 n.
2)a girl weighing 55 n goes up a flight of stairs that is 2.5 meters high carrying a box that weighs 1.0 n.
3)a girl weighing 60 n goes up a flight of stairs that is 3.0 meters high carrying a box that weighs 1.5 n.
4)a girl weighing 80 n goes up a flight of stairs that is 5.0 meters high carrying a box that weighs 0.5 n.
Answers: 2
Physics, 22.06.2019 04:30
Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?
Answers: 1
Physics, 22.06.2019 14:10
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
In which of the following scenarios is the greatest amount of work accomplished?
1)a girl we...
1)a girl we...
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