Obtain the new angular speed of the merry-go-round

Assignment Help Physics
Reference no: EM13515502

A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 260 kg · m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. Facing the axle, a 22.0-kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round?

rev/min

Reference no: EM13515502

Questions Cloud

Explain vibrational frequencies and the timescale : Justify the Born-Oppenheimer approximation based on vibrational frequencies and the timescale for electron motion.
A white chip on the first draw : (a) a white chip on the first draw?
Estimate the new angular speed of the student : A student sits on a freely rotating stool holding two dumbbells, each of mass 3.02 kg, Find the new angular speed of the student
State the general reaction scheme for an amino acid : Draw the general reaction scheme for an amino acid reacting with ninhydrin and then draw the structures for each component in the solvent system of the following
Obtain the new angular speed of the merry-go-round : A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 260 kg · m2 and is rotating at 11.0 rev/min about a frictionless vertical axle. What is the new angular speed of the merry-go-round
Explain a salt which has a weak acid as it''s cation : Identify (invent??) a salt which has a weak acid as it's cation and a weak base as its anion so that the salt would yield an acidic solution in water.
Compute the net torque on the system about axle of pulley : A counterweight of mass m = 4.20 kg is attached to a light cord that is wound around a pulley, compute the net torque on the system about the axle of the pulley
How to calculate concentration of chromate ion : Calculate concentration of chromate ion (CrO4) in a 0450 M solution of chromic acid (H2CrO4). (for chromic acid, Ka = .18, Ka2 = 3.2 x 10E-7)
What is the speed of sound in the gas in the tube : One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, and one end admits sound from a tuning fork. What is the speed of sound in the gas in the tube

Reviews

Write a Review

Physics Questions & Answers

  What is the angle that the net force makes

One component of a magnetic field has a magnitude of 0.040 T and points along the +x axis, while the other component has a magnitude of 0.030 T, What is the angle that the net force makes with respect to the +x axis

  Find the volume of water ejected from the hose every second

A gardener opens a hose and water is ejected horizontally at the speed of 6m/s. The diameter of the hose is 2cm and the density of water is 1000kg/m^3.

  What is the induced emf opposing the increasing current

The current in a solenoid is increasing at a rate of 6.37 A/s. The cross-sectional area of the solenoid is ? cm^2, and there are 333 turns on its 11.5 cm length. What is the induced emf opposing the increasing current

  What is the charge on a so that the force on b is zero

What is the charge on A so that the force on B is zero.

  At what angular speed should the coil be rotated

Laboratory measurement examine that the normal wavelength of this spectral line is 486.133 nm. Is the star coming toward us or moving away from us? At what speed.

  Determine the kinetic energy of ball at its highest point

A 47.60 g golf ball is driven from the tee with an initial speed of 56.0 m/s and rises to a height of 28.4 m. (a) avoid air resistance and determines the kinetic energy of ball at its highest point. (b) What is its speed while it is 8.02m below it..

  Over what distance should the airbag stop

A rabbit runs in a straight line with a velocity of +1.6 m/s for a period of time, rests for 9 s, and then runs again along the same line at +0.55m/s for an unknown amount of time. The rabbit travels a total distance of 1116m, and its average spee..

  At what speed does a transverse wave move along the cable

A steel cable has a cross-sectional area 3.44 × 10-3 m2 and is kept under a tension of 1.53 × 104 N. The density of steel is 7860 kg/m3. Note that this value is not the linear density of the cable. At what speed does a transverse wave move along t..

  Determine the change in the kinetic energy of the car

With brakes fully applied, a 1670 kg car deccelerates from a speed of 77.0 km/hr. What is the change in the kinetic energy of the car

  Find the thrust of the rocket

A rocket burns fuel at a rate of 200 kg/s and exhausts the gas at a relative speed of 4.0 km/s. Find the thrust of the rocket

  Find the height needed if you reverse the masses

In a physics demonstration, a stationary mass m1 = 0.20kg slides down a frictionless ramp and then collides with a second mass m2 = 0.40 kg. Find the height needed if you reverse the masses

  Produce a dark fringe at the identical location on screen

If a car traveling at 66 km/h will skid 22 m when its brakes lock, how far would it skid if it is traveling at 120 km/h when its brakes lock.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd