Find the rotational kinetic energy of a ring of mass 9 kg and radius 3 m rotating with 240 rpm about an axis passing through its center and perpendicular to its plane. (rpm is a unit of speen of rotation which means revolutions per minute)

Q: A 70kg disk is spinning about a vertical axis of rotation with a radius of 1.2m and a rotational…

A: angular momentum of the disc before collision,L1d=Idω1dL1d=0.45mr2×10L1d=4.5mr2..........(1)angular…

Q: A 2m radius wheel with spokes, rotating at 100 rad/s, slows down to rotational velocity of 82 rad/s…

A: Radius= 2m

Q: (c) Astronomical observations indicate that the rotational velocity follows a different behaviour:…

A: Vobserved - Black Vcalculated – Red, Blue

Q: Calculate the rotational inertia of a wheel that has a kinetic energy of 35.6 kJ when rotating at…

A: GIVEN:-                 Kinetic energy of wheel = 35.6 kJ                              Angular speed…

Q: Calculate the rotational inertia of a wheel that has a kinetic energy of 17.5 kJ when rotating at…

A: Rotational inertia of the wheel is 3.754 kg.m2Explanation:

Q: A bus contains a 1500 kg, 0.600 m radius flywheel (a disk) and has a total mass of 10,000 kg. (a)…

A:

Q: A flywheel in the form of a uniformly thick disk of radius 1.78 m has a mass of 25.6 kg and spins…

A: This question can be solved using the formulas: ω = ω0 + αt and τ = Iα The answer is contained in…

Q: A wheel with a rotational inertia of 50 kg*m^2 is rotating at 20 rad/s. How much work must be…

A: The data is given as, I=50 kg⋅m2ω1=20 rad/sω2=0 rad/s

Q: A bicycle wheel with a radius of 13.0 inches turns with an angu-lar velocity of 3 radians per…

A:

Q: A hula-hoop with a radius of 0.35 m is rotating at 15 radians per second. It weighs 1.7 kg. (A) How…

A: We know,v=rωwhere,v is linear velocityr is radius of hula hoopω is angular…

Q: Calculate the rotational inertia of a sphere having a mass of 1000 g and a radius of 550 cm through…

A: Given data:  Mass (M) = 1000 g = 1 kg Radius (R) = 550 cm = 5.50 m Required: The rotational inertia…

Q: 9.45 Energy is to be stored in a 70.0-kg flywheel in the shape of a uniform solid disk with radius R…

A: let the maximum angular speed = w maximum angular acceleration (a) = 3500 m/s^2

Q: A new sport utility vehicle has tires with a diameter of 28.9 inches. The tires have a tread-life…

A:

Q: A disk is constructed so that it can be made to rotate about an axis through it's center of mass…

A: Given: A disc is rotating about an axis through CM, rim(R), halfway b/w R & CM(H).

Q: Calculate the rotational inertia of a wheel that has a kinetic energy of 20.5 kJ when rotating at…

A:

Q: belt passes over a pulley having a 14.0-cm radius. (a) If the linear speed of the belt is 300 cm/s,…

A:

Q: A flywheel in the form of a uniformly thick disk of radius 1.53 m has a mass of 60.1 kg and spins…

A: The radius of the disc r=1.53 m. The mass of the disc m=60.1 kg. The initial angular velocity of the…

Q: A concept car includes a solid disk-shaped flywheel which can be spun up to store rotational kinetic…

A:

Q: (a) Calculate the rotational kinetic energy of Earth on its axis. (b) What is the rotational kinetic…

A: We have to find The rotational energy of earth around it's own axis  The rotational energy of earth…

Q: Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the…

A:

Q: woman rides a bicycle for 11 hour and travels 20 kilometers. Find the angular velocity of the wheel…

A:

Q: How much rotational kinetic energy in joules is there in a disk  of radius 0.2 meters and mass 76 kg…

A: Given,    r = 0.2 m   m = 76 kg  turns = 1000/s          = 1000×3600×π180 = 6285.713 rad/s

Q: A 10kg wheel of radius 0.5m is initially spinning at 3 revolutions per minute before coming to stop…

A: Given that,Mass , M=10kgAcceleration, R=0.5mInitially spinning at 3 revolutions per minuteWork done…

Q: A bus contains a 1500 kg, 0.600 m radius flywheel (a disk) and has a total mass Ul (a) Calculate the…

A:

Q: car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and…

A:

Q: A solid cylinder of mass 4.2 kg and radius 0.41 m starts from rest at the top of a ramp, inclined…

A: mass= m = 4.2 kg radius = r =0.41 m height = h = 2.4 m angle = 20 degrees

Q: An electric sander consisting of a rotating disk of mass 0.5 kg and radius 13 cm rotates at 22…

A: Given: Mass of the disk, m = 0.5 kg. Radius of rotation, r = 0.13 m. Speed of rotation, N = 22 rps.…

Q: A wheel of radius 0.5 m completes 6 revolutions in 3 seconds while rotating with a constant speed.…

A:

Q: Ex. 16 : A flywheel of mass 4 kg has radius of gyration 0.4 m. Calculate the kinetic energy of…

A: To find-Kinetic energy of flywheel(K.E)=?Given-Mas of flywheel (m)=4 kgRadius of gyration (K)=0.4…

Q: A wheel of radius 0.159 m, which is moving initially at 45.2 m/s, rolls to a stop in 299 m.…

A:

Q: A disc of mass 4 kg and radius R=0.2 m is thrown with a velocity of 7 m/s. The disc rotates in the…

A:

Q: Calculate the rotational inertia of a wheel that has a kinetic energy of 14.8 kJ when rotating at…

A:

Q: A bus contains a 1500 kg, 0.600 m radius flywheel (a disk) and has a total mass of 10,000 kg. (a)…

A: Given: The mass is m=1500 kg, The  radius of the flywheel (disk) is R=0.600 m, The total mass is…

Q: Read the question carefully and give me right solution according to the question.  A 1,200 kg car…

A:

Q: A disk of mass 3.8 kg and radius 0.17 m starts at the bottom of a 25 degree incline. It's…

A: