Begins spinning counter clockwise at angular speed

Assignment Help Physics
Reference no: EM13556465

A figure skater begins spinning counterclockwise at an angularspeed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval? answer inunits of rad/s2.

Reference no: EM13556465

Questions Cloud

Determine the inductive time constant of the circuit : Consider the circuit Take = 6.00 V, L = 8.00 mH, and R = 4.00. What is the inductive time constant of the circuit
Apparent power if the power factor : A three-phase, 60 Hz induction motor run at 1720 RPM and the following losses are known: stator copper loss =50 watts, rotor copper loss = 65 watts, combined rotational loss = 85 watts
What is angular displacement of each wheel during this time : A motorcyclist is traveling along a road and accelerates for 4.50s to pass another cyclist. The angular acceleration of each wheelis +6.70 rad/s^2, and, just after passing, the angular velocity ofeach is +74.5 rad/s, where the plus signs indicate ..
Find the thrust factors required : A spacecraft in a circular orbit wishes to transfer to another circular orbit of quarter the radius by means of a tangential thrust to move into, Find the thrust factors required
Begins spinning counter clockwise at angular speed : A figure skater begins spinning counter clockwise at an angular speed of 4.7 π rad/s. during a 4.9 s interval, she slowly pulsher arms inward and finally spins at 8.2 π rad/s. what is heraverage angular acceleration during this time interval?
What are the possible frequencies of the sound waves : While testing speakers for a concert, Tomás sets up two speakers to produce sound waves at the same frequency, What are the possible frequencies of the sound waves coming from the speakers
Determine what is the buoyant force on the block : A 100 kg block is suspended from a string and immersed in water. The block has a volume of 0.02 m^3. The water density is 1000 kg/m^3. What is the buoyant force on the block
Find the wavelength of the light in glass : A laser beam with vacuum wavelength 600 nm is incident from air onto a block of glass. find the wavelength of the light in glass
What is the wheels radius : A beetle sits at the top of a bicycle wheel and flies away just before it would be squashed. assuming that the wheel turns clockwise, the beetle's angular displacement is π rad, which corresponds to an arc length of 1.2 m. what is the wheel's radi..

Reviews

Write a Review

Physics Questions & Answers

  What is the magnitude and direction of the acceleration

A block of weight 36.1 N is hanging from a rope. The tension in the rope is 48.5 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?

  Calculate the current and voltage

A 1.5-V battery is connected in series with a 3.3-k? resistor, a 4.7-k? resistor, and a 1.0-k? resistor. Calculate the current (in mA) through and the voltage (in V) across each resistor

  How high above the end of the hose will the water reach

A fire truck connects their hose (radius r1 = 5 cm) to a fire hydrant. The underground water lines have a radius of r2 = 15 cm, How high above the end of the hose will the water reach

  Fundamental physical constant of quantum mechanics

The fundamental physical constant of quantum mechanics, h, has played an important role in each of the three theoretical advances (those relating to the blackbody spectrum, the photoelectric effect, and the structure of the H atom).

  Q1 a cube of ice is taken from the freezer at -86degc and

q1. a cube of ice is taken from the freezer at -8.6degc and placed in a 102 g aluminium calorimeter filled with 286 g

  Find the magnitude of the average foce applied by the bat

A base ball has mass 0.145 kg. If the ball remains in contact with the bat for 2.00 ms, find the magnitude of the average foce applied by the bat

  Temperature represents using thermodynamically sound

Place the following temperatures in order from least to greatest, and explain what each temperature represents using thermodynamically sound principles:

  Q1 a ball tied to the end of the string is swung in a

q1. a ball tied to the end of the string is swung in a vertical arc of radius r under the action of gravity. what would

  Use dimensional analysis to work on problems

You select a rental package that includes a car with an average consumption of 6rm liters of fuel per 100 rm km. Considering that in Europe average fuel cost is 1.063 rm euros/ liter, how much (in US dollars) will you spend in fuel in your trip.

  What is the speed of the outermost marcher

The performers in a marching band move in straight rows, maintaining constant side-to-side spacing between them. what is the speed of the outermost marcher

  At what speed should the bar be moved

Consider the arrangement shown in the figure below. Assume R = 4.00 ? and scripted l = 1.40 m, At what speed should the bar be moved

  Calculate how fast is the particle moving

A 12.5-µC particle with a mass 2.80x10-5kg moves perpendicular to a 1.01-T magnetic field in a circular path of radius 21.8m. How fast is the particle moving

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