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An electric motor can accelerate a Ferris wheel of moment of inertia I = 19500 kg·m2 from rest to 9.4 rev/min in 12.0 s. When the motor is turned off, friction causes the wheel to slow down from 9.4 to 7.4 rev/min in 10.0 s.
(a) Determine the torque generated by the motor to bring the wheel to 9.4 rev/min.
N·m
(b) Determine the power that would be needed to maintain this rotational speed.
W
find the highest distance throughout which his center of gravity can fall without his breaking a bone.
What force does the water exert on the man. explain how far does the tongue reach.
which is basically a diskshaped grindstone of mass 1.2 kg and radius 7.30 cm which operates at 700 rev/min. When the power is shut off, you time the grindstone and find out it takes 39.0 s for it to stop rotating.
Define a lie in the strict or formal sense and explain what is meant by communication - what is the principal purpose of communication?
A wire carries a current of 9.0 A in a direction that makes an angle of 35.0° with the direction of a magnetic field, Find the magnetic force on a 6.00 m length of the wire
During 5 successive 0.97 min intervals, a runner moves at the following constant speeds: 0.436 km/min, 0.250 km/min, 0.160 km/min, 0.160 km/min, and 0.320 km/min. calculate the total distance traveled and the average speed.
The three ropes are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles with tensions T1 = 35 N andT2 = 70 N. What are the magnitude and direction of the tension Tvec3 in third rope.
you have fixed costs of $608,000 per year. Your tax rate is 31 percent and your required return on this project is 11 percent. Illustrate what bid price per stamp should you submit?
describes the net gravitational force on the particle due to the shell? zero if the particle is at the center of the shell but nonzero at other locations within the hollow zero for any location of the particle within the hollow.
A 0.50-?F and a 1.4-?F capacitor (C1 and C2, respectively) are connected in series to a 14-V battery. Calculate the charge on each capasitor assuming the two capacitors are in parallel
Create horizontal component of the pendulum
A 2000-kg horizontal beam is supported at each end. A 160-kg load rests a quarter of the way from one end if the beam and 120 kg cargo is 1/3 from the other end. What is the vertical force on each of the supports.
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