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Rotational motion
Page 7
Questions (1,741)
A wheel has a rotational inertia of 3.0 kg⋅m2. At the instant the wheel has a counterclockwise angular velocity of 10.0 rad/s,
3 answers
asked by
Anonymous
878 views
In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating
3 answers
asked by
help
612 views
The crankshaft in your car engine is turning at a frequency of 3000 rpm. What is the shafts angular speed?
3 answers
asked by
Keymoni
478 views
Which is the best example of rotational motion?
-The skater repeated the figure eight on the ice. -Sara spun the dreidel on its
6 answers
asked by
jocelyn
910 views
The drill bit of a variable speed electric drill has a constant angular acceleration of 2.50 rad/s^2. the initial angular speed
4 answers
asked by
Remie
2,700 views
1. A flywheel is rotating at 7 rad/sec. It has a 15-cm diameter. What is the speed of a point on its rim, in cm/min?
2. A wheel
3 answers
asked by
rebecca
1,278 views
The road wheel of a motor vehicle increases speed uniformly from 50 rev/min to 1100 rev/min in 40 seconds.calculate the angular
4 answers
asked by
KUNDA C ANTHONY
683 views
A 28 g block sits at the center of a turntable that rotates at 60 rpm. A compressed spring shoots the block radially outward
3 answers
asked by
BBell
866 views
Anybody help me with this?
A disk with mass m = 6.5 kg and radius R = 0.41 m hangs from a rope attached to the ceiling. The disk
3 answers
asked by
katie
1,627 views
a bug on a turntable which is rotating at 2.00 radians over second sits there for 1.7 seconds before he is brushed away. What
3 answers
asked by
joy
696 views
Question:
A wind turbine has a total height of 50m, with 3 equally spaced blades that are 16m in diameter. 1) Create equations
3 answers
asked by
Helena
1,453 views
A wheel has a constant angular acceleration of 2.5 rad/s2. Starting from rest, it turns through 200 rad.
(a) What is its final
3 answers
asked by
Haya
846 views
The angular velocity of an engine increase from 1200 RPM to 3000 RPM in 10 second computer angular acceleration and the number
3 answers
asked by
Tushare yadav
1,542 views
A child of mass 30 kg stands beside a circular platform of mass 95 kg and radius 2.4 m spinning at 2.3 rad/s. Treat the platform
4 answers
asked by
Ana
1,310 views
A rotating wheel requires 7.00 s to rotate 28.0 revolutions. Its angular velocity at the end of the 7.00-s interval is 97.0
3 answers
asked by
amy
2,782 views
A playground merry-go-round of radius R = 1.92m has a moment of inertia of I = 221kgm^2 and is rotating at 14.0rev/min about a
3 answers
asked by
Andrea
2,114 views
A bicycle wheel of radius 35cm is making 25 revolutions in 10secs. At what speed in km/hr is the cyclle moving
3 answers
asked by
Megha
1,465 views
Physics Genius! please let me!
Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of 6.12
5 answers
asked by
Lola
1,167 views
The angle of a rotating shaft turns in t seconds is given by theta= ω+1/2at^2
and it is given that ω=3 2 rad/s and α=0.6 rad/s
4 answers
asked by
Ryan
567 views
A constant retarding torque of 12 N*m stops a rolling 0.80 m diameter wheel in a distance of 15 m. How much work does the torque
3 answers
asked by
Alan
1,062 views
On a piece of machinery, the centers of two pulleys are 3 feet apart, and
the radius of each pulley is 6 inches. How long a belt
4 answers
asked by
Alys
823 views
The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the
3 answers
asked by
Emma
1,778 views
A penny is placed at the outer edge of a disk (radius = 0.119 m) that rotates about an axis perpendicular to the plane of the
3 answers
asked by
Anonymous
660 views
A person is riding a bicycle, and its wheels have an angular velocity of 28.9 rad/s. Then, the brakes are applied and the bike
4 answers
asked by
phincter
1,769 views
PLEASE GIVE THE ANSWER,I ALREADY INPUT TO YOUR FORMULA AND IT IS FALSE...
Is your answer 0.57? A 15 kg, 1m wide door which has
4 answers
asked by
pyhsiclover
647 views
A tire 0.500 m in radius rotates at a constant rate of 200 rev/min. Find the speed and acceleration of a small stone lodged in
4 answers
asked by
Sammie
3,932 views
A potter's wheel having a radius 0.45 m and a moment of inertia of 14.9 kg · m2 is rotating freely at 49 rev/min. The potter
3 answers
asked by
heather
1,143 views
To drive a typical car at 40 mph on a level road for one hour requires about 3.2 × 10^7 J of energy. Suppose one tried to store
3 answers
asked by
terry
973 views
A coin rests 15.0 cm from the center of a turntable. The coefficient of static friction between the coin and turntable surface
3 answers
asked by
Anonymous
1,550 views
Find the energy stored in the solid flywheel of mass 8.0×104 and radius 1.8 when it's rotating at 290
3 answers
asked by
John
1,194 views
A turbine is spinning at 3600rpm . Friction in the bearings is so low that it takes 11min to coast to a stop. How many
6 answers
asked by
Nami
3,248 views
A projected space station consists of a circular tube that will rotate about its center (like a tubular bicycle tire) as shown
3 answers
asked by
kim
2,361 views
the wheel ( including the tire) of a sports car under development by one of the Big Three auto companies has an 11 in radius.
3 answers
asked by
greeny
994 views
A wheel of radius 0.398 m is mounted on a frictionless horizontal axis. The rotational inertia of the wheel about the axis is
3 answers
asked by
Stephanie
1,880 views
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 86 kg. A person
3 answers
asked by
Cindy
3,227 views
A mass m=400g hangs from the rim of a wheel of radius r=15cm. When released from rest, the mass falls 2.0m in 6.5sec. Find the
3 answers
asked by
José
1,882 views
If a trapeze artist rotates once each second while sailing through the air and contracts to reduce her rotational inertia to
4 answers
asked by
Christie
3,862 views
The angular speed of digital video discs (DVDs) varies with whether the inner or outer part of the disc is being read. (CDs
4 answers
asked by
john
1,096 views
A turntable of radius 2m rotates freely about a fixed vertical axis. A child 19 kg is standing on the turntable right at the
6 answers
asked by
Brittany
1,145 views
A merry-go-round accelerating uniformly from rest achieves its operating speed of 3.4 rpm in 2 revolutions. What is the
4 answers
asked by
WyzAnt
1,019 views
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 6.00 s, it rotates 28.0 rad.
3 answers
asked by
S.Jacob
4,169 views
A solid cylindrical disk has a radius of 0.18 m. It is mounted to an axle that is perpendicular to the circular end of the disk
4 answers
asked by
Kelsey
1,141 views
What is the rotational inertia of a solid iron disk of mass 45 kg, with a thickness of 3.44 cm and radius of 19.0 cm, about an
2 answers
asked by
Anonymous
881 views
A carnival swing is fixed on the end of an 7.7-m-long beam. If the swing and beam sweep through an angle of 100°, what is the
3 answers
asked by
Anonymous
485 views
The speed of a point on a rotating turntable, which is 0.264 m from the center, changes at a constant rate from rest to 0.902
3 answers
asked by
squires
473 views
A bicycle with 55.20 cm diameter wheels is traveling at 23.60 km/hr.
At what angular speed do the wheels turn? How long do they
4 answers
asked by
venuya
1,212 views
A soccer ball of diameter 30 cm rolls without slipping at a linear speed of 3.1 m/s. Through how many revolutions has the soccer
3 answers
asked by
Tin
777 views
As a young boy swings a yo-yo parallel to the ground and above his head, the yo-yo has a centripetal acceleration of 250m/s^2.
3 answers
asked by
helmuth
1,210 views
A pulley rotating in the counterclockwise direction is attached to a mass suspended from a string. The mass causes the pulley's
4 answers
asked by
aok
1,794 views
A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s.
Determine the radial component of
3 answers
asked by
Corey
885 views
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