A ballet dancer spins about vertical axis at 90 r.p.m. with arms outstretched. With the arms folded, the momentum of inertia about the same axis change by 25%. Calculate the new frequency of revolution,
Q: A crate that has a mass of m = 5 kg slides down a smooth surface through vertical distance h=85 cm…
A: a) Apply the energy conservation equation between the top and the bottom of the surface to determine…
Q: A uniform solid disk of mass m = 3.08 kg and radius r= 0.200 m rotates abou fixed axis perpendicular…
A: (a)The magnitude of the angular momentum when rotation axis passing through the centre L=…
Q: is the total kinetic energy of
A: e
Q: y-axis (0,5) (5,5) *-аxis (0,0) (5,0) (10,0)
A: Given: The values are shown below:
Q: A person drops a cylindrical steel bar (Y = 2.00 x 10" Pa) from a height of 5.00 m (distance between…
A: The mass of the cylindrical bar is m=0.80 kg. The length of the cylindrical bar is L=0.63 m. The…
Q: Momentum, P = (2.0 kg m/sec)î – (7.0 kg m/sec)ĵ acts on a particle with position vector 7 = (3. 0…
A: Angular momentum: The angular momentum is the cross-product of the position vector to the particle…
Q: A weather vane initially at rest has a moment of inertia of 0.107 kg • m? about its axis of…
A: Write the given values with the suitable variables.Here, I, m, r, and v are the initial moment of…
Q: A uniform circular disc with its plane horizontal is rotating about a vertical axis passing through…
A: To find-M.I. of the disc (I1)=?Given-n1=180 rpm=18060=3 rpsn2=(180-60) rpm=12060=2 rpsm=1.9…
Q: a thin disk of mass 120 g and diameter of 9.91 cm rotates about a perpendicular axis through its…
A:
Q: A solid disk of moment of inertia 0.563 kg m2 is spinning about its center of mass at a rate of 10.5…
A: Using conservation of angular momentum Initial angular momentum = final angular momentum ⇒Li = Lf…
Q: Two particles of masses M1=2Kg and M2=3Kg are attached to the ends of a 2.4 meter long light…
A: Answer:- A) L=86.4kgm^2/s Option A is correct Answer.
Q: 11.3 g/s at 863 m/s S 4.4 m 2 2300 kg m? 11.3 g/s at 863 m/s Figure: Rear view of spacecraft. 5…
A:
Q: A 1.10-kg particle moves in the xy plane with a velocity of v = (3.90 î - 3.70 j) m/s. Determine the…
A:
Q: A small ball of mass 0.50 kg is attached by a massless string to a vertical rod that is spinning as…
A: (a) Draw the free-body diagram of the ball.
Q: Along the length of a rod, the linear mass density of the rod is λ(x)=2.1x-x2/5.2, where L = 1 m is…
A:
Q: Consider the rectangular block of mass, M = 2Kg and length L = 2m. Two cylindrical disks (each disk…
A: a) Let the initial velocity of the rectangular block be vin, and L be the length of the rod.…
Q: A skater extends her arms horizontally, holding a 4.2-kg mass in each hand. She is rotating about a…
A:
Q: A uniform solid disk of mass m = 2.91 kg and radius r = 0.200 m rotates about a fixed axis…
A:
Q: A uniform solid disk of mass m = 3.06 kg and radius r= 0.200 m rotates about a fixed axis…
A:
Q: What is the magnitude L of the angular momentum of the two-particle system around a point midway…
A: Angular momentum is the moment of momentum
Q: Agirl of mass 27.3 kg stands on the rim of a frictionless merry-go-round of radius 1.33 m and…
A: It is given in the question that a girl of mass M= 27.3 kg stands on a rim of a friction less merry…
Q: a force of F=(8.00n)I-(6.00n)j is being applied to an object with a mass of 1.00kg so that it is…
A: The given values with suitable variables are listed below. Here, F denotes the force, m denotes the…
Q: A uniform solid disk of mass m = 3.07 kg and radius r = 0.200 m rotates about a fixed axis…
A:
Q: A rod of mass M = 3.35 kg and length L can rotate about a hinge at its left end and is initially at…
A: a)The required initial angular momentum is,
Q: A uniform solid disk of mass m = 3.07 kg and radius r = 0.200 m rotates about a fixed axis…
A: Given Mass , m = 3.07 kg Radius, r = 0.200 m Angular frequency, w = 5.95 rad/s
Q: In the figure, a 6.09 g bullet is fired into a 0.650 kg block attached to the end of a 0.129 m…
A: Solution. (a). The rotational inertia or the moment of inertia of the bullet-block-rod system is the…
Q: Determine the angular momentum of the system about the origin when the speed of each particle is…
A: Given Length of rod L = 1.00 m m1 = 4.00 kg m2 = 3.00 kg speed of both the particles v = 4.00 m/s
Q: mass 21.9 kg stands on the rim of a frictionless merry-go-round of radius 0.930 m and rotational…
A: According to conservation of angular momentum If no external torque applied on a system its angular…
Q: A gym barbell has two metal plates on each end with a mass of 10 kg and a diameter of 0.40m. The…
A: Idisc= MR2/4 with axis parallel to the disc R is the radius of disc
Q: An ice skater is spinning at 6.4 rev/s and has a moment of inertia of 0.56 kg ⋅ m2. Part (a)…
A:
Q: A conical pendulum consists of a bob of mass m in motion in a circular path in a horizontal plane as…
A: Let us say that T is the tension in the string and it is rotating with the angularvelocity along…
Q: A 65 kg person is standing 0.5 meters from the center of a merry-go-round that is spinning with…
A: Given data: The mass of the person is m=65 kg. The initial distance is d1=0.5 m. The initial…
Q: At one instant, force F = 1.37j N acts on a 0.556 kg object that has position vector - 3.78i 3.78k m…
A:
Q: In the figure, a 8.01 g bullet is fired into a 0.112 kg block attached to the end of a 0.952 m…
A:
Q: A 1.91 kg particle-like object moves in a plane with velocity components vx = 78.6 m/s and vy = 91.3…
A:
Q: A uniform thin rod of length 0.300 m and mass 3.10 kg can rotate in a horizontal plane about a…
A: Given, Length of rod L = 0.300 m Mass of road mr = 3.10 Kg Mass of bullet mb = 3 g Angle θ=60∘…
Q: In the figure, a 5.03 g bullet is fired into a 0.630 kg block attached to the end of a 0.385 m…
A: Mass of the bullet =5.03 g Mass of the block=0.630 kg Mass of the rod=0.402 kg Moment of inertia of…
Q: The figure shows a rigid structure consisting of a circular hoop of radius R and mass m, and a…
A: Given, side(a) = Radius (R) = 1.7mmass (m) = 4.2kgTime period (T) = 2.4 s1. Moment of inertia of…
Q: A tennis racket has a mass of 0.4 kg. The radius of gyration of the racket about its longitudinal…
A:
Q: A particle of mass 2.00 kg moves with position r(t) = x(t) i + y(t) j where x(t) = 10t2 and y(t) =…
A: Given A particle of mass 2.00 kg moves with position r(t) = x(t) i + y(t) j where x(t) = 10t2 and…
Q: A diver (m = 60 kg) jumps from a diving board. At takeoff, his angular momentum about the transverse…
A: The objective of the question is to find the diver's moment of inertia about his transverse axis at…
Q: To open the cap of a soda bottle, a net tangential force of 0.0012 N is applied at the rim. Assuming…
A: Given data: Tangential Force (F) = 0.0012 N Mass (m) = 0.00218 kg Radius (r) = 0.0137 m Required:…
Q: The moment of inertia I of a cheap door of mass M= 4.00 kg (about an axis going through the hinges…
A: Given that:M=4.00 kgR=0.960 mI=13MR2m=0.300 kgvi=20.0 m/sIm=mR2
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
