A student rotates on a frictionless pianostool with his arms outstretched, a heavy weight in each hand.Suddenly he lets go of the weights, and they fall to the floor. Asa result, does the student’s angular speed increase, decrease, orstay the same? (b) Choose the best explanation from among thefollowing:I. The loss of angular momentum when the weights are droppedcauses the student to rotate more slowly.II. The student’s moment of inertia is decreased by dropping theweights.III. Dropping the weights exerts no torque on the student, but thefloor exerts a torque on the weights when they land

Q: A skater extends her arms horizontally, holding a 5-kg mass in each hand. She is rotating about a…

A: total initial moment of inertia = 5 + (2*5)(1)2  = 5 + 10  = 15 kg m 2total final moment of inertia…

Q: Figure skater rotating at 5rad/s with arms extended, moment of inertia is 2.25 kg * m^2. The skater…

A: The formula for the angular momentum is:

Q: How could you use simple equipment such as balls and string to study the changes in angular momentum…

A:

Q: [LO 21.4, 23.0, 23.2, 25.1] A skater extends her arms horizontally, holding a 5-kg mass in each…

A: Given: The holding mass is 5 kg. The initial angular velocity is 1 rev/s. The moment of inertia of…

Q: What is the magnitude of the angular momentum of a 500 g, 0.5 m long bar rotating at 60 rpm about an…

A: The expression for the required magnitude angular momentum is,

Q: Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45…

A: Given Data  Mass of Jacob m1 = 45 kg Mass of Ethan m2 = 31 kg Velocity of Jacob v1 = 8.03 m/s…

Q: What data could you collect to study the change in angular velocity when two people push a…

A: To find:  What data could you collect to study the change in angular velocity when two people push…

Q: 2. What is the moment of inertia of a cylindrical rod of mass M and length L, rotating at a distance…

A:

Q: A 60.0-kg skater begins a spin with an angular speed of 6.0 rad/s and of moment of inertia 3.0…

A:

Q: 1) Consider a bowling ball of 9.50 kg, a moment of inertia of 2.80E-02 kg·m², and a radius of 0.150…

A: The condition for pure rolling is

Q: A ball of mass 2 Kg is attached at the end of a string of length 1 m and it is rotated with a linear…

A: Dear student,  Since both questions are different as per guidelines we can author only first one…

Q: A 0.005 00-kg bullet travelinghorizontally with a speed of1.00 x 103 m/s enters an 18.0-kgdoor,…

A: Part A:

Q: 0005 00-kg bullet traveling horizontally with speed MX 10 m/s strikes an 18.0-kg door, embedding…

A:

Q: (II) A person of mass 75 kg stands at the center of a rotatingmerry-go-round platform of radius 3.0…

A: Given, We know angular momentum is conserved. Initial angular momentum=Final angular momentum So,…

Q: A 0.00500-kg bullet traveling horizontally with a speed of 1.00x10^3 m/s enters an 18.0-kg door,…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: What is the magnitude of the angular momentum of a 300 g, 2.0 m long bar rotating at 100 rpm about…

A:

Q: What is the angular speed of the wheel at theend of the 4.20-s interval?

A:

Q: A space station shaped like a giant wheel has a radius of 100 m and a moment of inertia of 5.00 ×…

A:

Q: A 60.0-kg woman stands at the rim of a horizontalturntable having a moment of inertia of 500 kg . m2…

A: a) From conservation of angular momentum for the system of the woman and the turntable, we have

Q: A student sits at rest on a piano stool that can rotate withoutfriction. The moment of inertia of…

A: The initial and final angular momentum should be same.

Q: A trapeze artist performs an aerial maneuver. While in a tucked position, as shown in Figure A, she…

A: Given data- Initial moment of inertia Ii=16.7 kg.m2 Initial angular velocity ωi= 6.15 rad/s Final…

Q: A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an…

A: Given: The mass of the merry-go-round is 120 kg. The radius of the merry-go-round 1.8 m. The initial…

Q: (II) (a) What is the angular momentum of a figure skaterspinning at 3.0 rev/s with arms in close to…

A:

Q: As Halley’s comet orbits the Sun, its distance from the Sun changes dramatically, from 8.8×10^10 m…

A: Given: Radius at closest approach rc=8.8×1010m, Speed at closest approach vc=5.4×104m/s, Radius at…

Q: A playground toy has four seats, each 5.0 kg, attached to very light, 1.5 m long rods, as seen from…

A:

Q: While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the…

A:

Q: question 8 please

A: (a)The first drop of the water rises higher because the angular speed of the wheel decreases.

Q: A physics teacher on a spinning chair has a moment of inertia of 5.5 kg m^2 with his arms…

A:

Q: In the figure here, a 32 kg child stands on the edge of a stationary merry-go-round of radius 2.3 m.…

A: Mass of child, mc = 32 kgRadius of merry-go-round, rm = 2.3 mRotational inertia of merry-go-round,…

Q: A 200 g spring loaded projectile launcher is used to launch a 10 g projectile. If the spring (spring…

A: The given values are, ms=200 g=0.200 kgmp=10 g=0.010 kgk=22 N/mx=6.5 cm=0.065 m

Q: A trapeze artist performs an aerial maneuver. While in a tucked position, as shown in figure A, she…

A:

Q: A bicycle mechanic mounts a bicycle on the repair stand and starts the rear wheel spinning from rest…

A: Given that, the value of angular velocity and angular acceleration. Then We have to determine the…

Q: A 4.0-m-diameter playground merry-go-round, with a moment of inertia of 400 kg ⋅ m2, is freely…

A: Given:- r= D/2= 2 m I= 400 kg.m2 wi= 2 rad/s mryan= 80 kg

Q: A light rod of length ℓ = 1.00 m rotates about an axis perpendicular to its length and passing…

A: a) The kinetic energy of the system is 6.34 J.

Q: A torque of magnitude 50N m acts for 3 seconds to start a small airplane propeller (I = }mr²) of…

A: Write the expression or the torque and substitute the required values to determine the angular…

Q: A trapeze artist performs an aerial maneuver. While in a tucked position, as shown in Figure A, she…

A:

Q: A merry-go-round with a moment of inertia equal to 1260kg m² and a radius of 2.5 m rotates with…

A: Moment of inertia of merry go round= 1260 kg m2 Radius = 2.5 m  Initial angular speed = 1.7 rad/sec…

Q: Two astronauts(Fig. P8.80), each having a mass M, are connected by a ropeof length d having…

A: (a)

Q: Suppose an ice skater has moment of inertia of 8 kg m^2 while spinning with arms wide open and 6 kg…

A:

Q: A merry-go-round with a moment of inertia of 880kg⋅m2 experiences a force of 74.5N applied parallel…

A: Given data: Moment of inertia of merry-go-round is, I = 880 kg⋅m2 Force is applied parallel to edge…

Q: Three children are riding on the edge of a merry-go-round that is 162 kg, has a 1.60 m radius, and…

A:

Q: wo astronauts, each having a mass of 75.5 kg, are connected by a 10 reating the astronauts as…

A: according to guideline, only 3 subparts are answered here. Givenm1=m2=m=75.5 kgd=10 mv=4.9 m/s

Q: [LO 25.1, 21.4] Two astronauts (figure), each having a mass of 70 kg, are connected by a d = 14-m…

A:

Q: While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the…

A: Given Data Moment of inertia of the leg is I=3.34 kg.m2 Rotational kinetic energy is Krotational=157…

Q: Suppose you are sitting on a rotating stool holding a 2-kgmass in each outstretched hand. If you…

A: Before holding the masses, our body has a some angular momentum. Angular momentum is nothing but…

Q: If a skater who is spinning pulls her arms in so as to reduce her rotational inertia by half, by how…

A: A skater who is spinning pulls her arms in so as to reduce her rotational inertia by half. According…

Q: FSC Volleyball player and EXS major, Ali Travis's 76cm, 3.7kg arm moves at an angular velocity of 15…

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.