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Rotational motion
Page 10
Questions (1,742)
A thin rod (length = 1.03 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge.
4 answers
asked by
Kristi
1,327 views
In outer space two identical space modules are joined together by a 500.0 massless cable. These modules are rotating about their
3 answers
asked by
Samantha
1,106 views
If the rotational speed of each wheel is 9 revolution per second, what are the tangential speeds of a point on the rim of each
4 answers
asked by
kelly
758 views
Search: A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +18.0 rad/s. Then, the brakes are
3 answers
asked by
Taylor
1,127 views
1) A 6-ft propeller turns at 1200 revolutions per minute. Compare the angular velocity of the tip with the angular velocity at a
3 answers
asked by
confused
819 views
A large wooden wheel of radius R and the moment of inertia I is mounted on an axle so as to rotate freely. A bullet of mass m
3 answers
asked by
Gee
1,657 views
A centrifuge rotor has a moment of inertia of 3.30 10-2 kg·m2. How much energy is required to bring it from rest to 10000 rpm?
I
4 answers
asked by
Syl
807 views
A skater spinning with angular speed of 1.5 rad/s draws in her outstretched arms thereby reducing her moment of inertia by a
4 answers
asked by
Tarren
2,750 views
The angular speed of a propeller on a boat increases with constant acceleration from 11 rad/s to 26 rad/s in 2.4 seconds.
3 answers
asked by
Courtney
1,160 views
A rotating wheel requires 9.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 9.00 s interval is 98.0
3 answers
asked by
Annie
1,305 views
A block (mass = 2.9 kg) is hanging from a massless cord that is wrapped around a pulley (moment of inertia = 1.2 x 10-3 kg·m2),
3 answers
asked by
danica
1,258 views
An old-fashioned single-play vinyl record rotates on a turntable at 46.0 rpm. What are (a) the angular velocity in rad/s and (b)
3 answers
asked by
madiha
1,909 views
a coin placed on a disc rotates with speed of 33 1/3 rev. per minute provided that the coin is no more than 10 cm from the axis
5 answers
asked by
onda
1,367 views
A diver can reduce her moment of inertia by a factor of about 3.5 when changing from a straight position to a tuck position. If
4 answers
asked by
Bella
3,965 views
If the angular quantities θ,ω,α were specified in terms of degrees rather than radians, how would the kinematics equations
3 answers
asked by
Charlie
1,248 views
A horizontal 873 N merry-go-round of radius 1.11 m is started from rest by a constant horizontal force of 70.6 N applied
4 answers
asked by
Caryn
983 views
A space station is shaped like a ring and rotates to simulate gravity. If the radius of the space station is 150 m, at what
3 answers
asked by
jade
1,465 views
A force FT is applied to a cord wrapped around a pulley with moment of inertia I = 0.435 kg·m2 and radius R0 = 33.0 cm. (See
3 answers
asked by
Anonymous
1,975 views
A diver can reduce her moment of inertia by a factor of about 3.5 when changing from the straight position to the tuck position.
4 answers
asked by
Taylor
1,080 views
A merry go round in the park has a radius of 1.8 m and a rotational inertia of 900 kg-m^2. A child pushes the merry go round
3 answers
asked by
Mare
1,953 views
The moment of inertia of an object depends on the shape of the object, location and orientation of the axis of rotation. For a
3 answers
asked by
Ellie
805 views
A fish takes the bait and pulls on the line with a force of 2.7 N. The fishing reel, which rotates without friction, is a
3 answers
asked by
kelsey
1,498 views
1. A centrifuge in a medical laboratory rotates at an angular speed of 3650 rev/min. When switched off, it rotates through 50.0
3 answers
asked by
Elisa
1,702 views
A uniform plate of height H= 0.69 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y=
3 answers
asked by
Kara
827 views
A wheel, starting from rest, has a constant angular acceleration of 1.3 rad/s2. In a 2.5-s interval, it turns through an angle
3 answers
asked by
shelby
718 views
what is the angular speed, in rad/s, of a point on the surface of Jupiter at latitude 72 degrees N?
3 answers
asked by
Jade
610 views
An electric clock is hanging on the wall in the living room. The clock is unplugged, and the second hand comes to a halt over a
3 answers
asked by
Mary
1,713 views
A rotating door is made from four rectangular glass panes, as shown in the drawing. The mass of each pane is 85 kg. A person
3 answers
asked by
Papito
618 views
A pitcher throws a curveball that reaches the catcher in 0.55 s. The ball curves because it is spinning at an average angular
3 answers
asked by
Mary
826 views
When a wheel rotates about a fixed axis, do all points on the wheel have the same angular speed?
Yes, assuming the wheel is a
3 answers
asked by
Anonymous
871 views
Find the required angular speed, ω, of an ultracentrifuge for the radial acceleration of a point 2.00cm from the axis to equal
4 answers
asked by
Anonymous
15,672 views
A child's top is held in place, upright on a frictionless surface. The axle has a radius of r= 2.21 mm. Two strings are wrapped
4 answers
asked by
wafaa
2,768 views
The sweeping second hand on your wall clock is 24cm long.
a)What is the rotational speed of the second hand? b)Find the
4 answers
asked by
help me please
5,205 views
1) What is the effect of adding a weight to the end of a baseball bat used for practice swings?
2) What does it mean to say that
3 answers
asked by
anonymous
393 views
A conveyer belt is driven by a large (diameter = 1.0 m) wheel. The wheel starts from rest and has an angular acceleration of
3 answers
asked by
teal
720 views
A 2.0 kg cylinder (radius = 0.08 m, length = 0.50 m) is released from rest at the top of a ramp and allowed to roll without
4 answers
asked by
kelsey
587 views
Un eslabón tiene una longitud de 0.4 metros y se mueve con una velocidad angular de -12rad/s y una aceleración angular de
2 answers
asked by
val
55 views
What happens when you turn around so fast?
1 answer
asked by
Krystal Mejes
58 views
A car has wheels with tyres on, which are 75cm in diameter. The car is travelling at a constant speed of 60km/hr. If no slipping
3 answers
asked by
Vincent
643 views
Determine whether you are accelerating as Earth rotates once every 24 hours
1 answer
asked by
Anonymous
43 views
A washing machine needs 16 s to speed up from rest to top speed of 5 rotation for every 3.03 s. If the damp cloths inside are
1 answer
asked by
Abdallah
62 views
Acceleration. Tangential and normal components of acceleration. The kinematics of the rotational motion.
1 answer
asked by
yaikobmelaku
99 views
The driving pulley of a motorbike rotates at 3r/s and has a diameter of 300 mm. The pulley exerts an effective force of 2000n at
1 answer
asked by
Thapelo
120 views
The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.25 rad/s2. It accelerates
1 answer
asked by
araya
262 views
aspinning to has dimeter of1cm apoint on the out rim of the top moves through an angle of 8byradians each second. a,what is the
1 answer
asked by
Anonymous
149 views
The end of a pencil of mass m and length L rests in a corner as the pencil makes an angle θ with the horizontal (x) direction
1 answer
asked by
Sally
319 views
assume,you are on a big wheel at fair ground vehicles 1 rev every 8 sec,the operator of the wheel decided to stop the wheel by
1 answer
asked by
Anonymous
285 views
Wheels A and B are connected by a belt, Wheels B and C are connected
by an axle, and Wheels C and D are connected by a belt.
4 answers
asked by
garlic
301 views
A circular saw blade rotation at 3600 rpm is reduced to 3450 rpm in 2 sec. What is the angular acceleration of the blade?
1 answer
asked by
raymond moscoso
275 views
A boy of mass 10 kg sits at a distance of 4m from the sea-saw.if another boy of mass 20kg sits at a distance of 5m from the
1 answer
asked by
Anonymous
286 views
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