What is the new angular velocity of the two astronauts

Assignment Help Physics
Reference no: EM13299579

Two astronauts of equal mass 70 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 14 meters. They are rotating about an axis that passes through the center of mass midway between the two astronauts with angular velocity 0.9 radian/sec. One of the astronauts pulls on the rope, decreasing the distance separating them to 14/2 meters. (In the following, take the rope to be massless.)

A) What is the new angular velocity of the two astronauts?

B) How much work did the astronaut who pulled on the rope do?

Reference no: EM13299579

Questions Cloud

Design a suitable pavement consisting of a granular subbase : if the subgrade has a resilient modulus of 103,500kN/m2, design a suitable pavement consisting of a granular subbase with a layer of coefficient of 0.13, a granular base layer with a layer coefficient of 0.14, and an asphalt concrete surface with ..
Diminishing returns to a single factor of production : An increase in the price of an input leads to higher costs and therefore less profit at the original quantity produced; therefore, some firms will increase the quantity they produce in order to increase revenues.
Show what happens to the individual demand curve for qy if : Show what happens to the individual demand curve for QY if income increases to 150. (As before, you are only required to calculation the quantity demand for the prices 2, 4, 5, and 10. You can then impute a reasonable approximation of the rest of the..
What is the equilibrium quantity of milk if the market price : The demand for milk is given by Q=120,000-20,000P.
What is the new angular velocity of the two astronauts : Two astronauts of equal mass 70 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 14 meters. What is the new angular velocity of the two astronauts
Describe what mass of carbon dioxide is produced : What mass of carbon dioxide is produced from the complete combustion of 6.20×10?3 of methane
Calculate next year ending receivables balance : Receivables are currently $15M on credit sales of $120M Credit sales are expected to grow by 20% next year. Calculate next year's ending receivables balance (make calculations using ending balances and a 360 day year).
Find the bragg- scattering angle : A beam of thermal neutrons emerges from a nuclear reactor and is incident on a crystal. Find the Bragg- scattering angle that results in a scattered beam of this energy
What is the expected return on the portfolio : What are the expected returns on Stock J and Stock K individually?

Reviews

Write a Review

Physics Questions & Answers

  How much charge passes through the battery

A service station charges a battery using a current of 6.6A for 4.0h, How much charge passes through the battery

  What gravitational potentialenergy is gained by refrigerator

A mover's dolly is used to deliver a refriger- ator up a ramp into a house. What gravitational potential energy is gained by the refrigerator

  What are their speeds as they crash together

Two Jupiter-size planets are released from rest 5.00×1010m apart. What are their speeds as they crash together

  Which arrow represents object and which represents the image

A student draws the ray diagram shown in the figure but forgets to label the object, the image, which arrow represents the object, and which represents the image

  Explain how high does the top of the ice block float above

The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. Explain how high does the top of the ice block float above the water level?

  Determine the maximum height sb reached by the ball

A boy tosses a ball in the vertical direction off the side of a cliff. if the initial velcoity of the ball is 15 m/s upward, determine the maximum height sb reached by the ball

  With what force f2 should the second crewman pull

Two crewmen pull a boat through a lock. One crewman pulls with a force of F1 = 130 N at an angle of = 37° relative to the forward direction of the raft.

  How far is the man from the gate

a man is standing near a gate and a flag pole. The gate is 15 ft from the pole. If the pole is h=35 ft tall, how far is the man from the gate

  Find the direction of the net force acts on the sailboat

A 380-kg sailboat has an acceleration of 0.636 m/s2 at an angle of 65.5 ° north of east. Find the direction of the net force that acts on the sailboat

  How fast would the father be moving

What is an acceleration of two falling sky divers (mass 100.0 kg including parachute) when the upward force of air resistance is equivalent to one-fourth of their weight. How fast would the father be moving.

  Find the velocity of the other piece after the explosion

A hand grenade is thrown with a speed of v0  30 m/s, and a 60 degree angle with x-axis, just prior to exploding. Find the velocity of the other piece after the explosion

  How to make a free-body diagram of the stone

A 1025 kg car carrying four 78kg people travels over a rough "washboard" dirt road with corrugations 4m apart which causes the car to bounce on its spring suspension.

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