### What is the new rotational energy of the system

Assignment Help Physics
##### Reference no: EM13544892

Two astronauts, each having a mass M, are connected by a rope of length d having negligible mass. They are isolated in space, orbiting their center of mass at speeds v. (Use any variable or symbol stated above as necessary.) By pulling on the rope, one of the astronauts shortens the distance between them to d/9.

a) What is the new angular momentum of the system?

Lf=___

b) What are the astronauts new speeds?

Vf=___

c) What is the new rotational energy of the system?

Kf=___

d) How much chemical potential energy in the body of the astronaut was converted to mechanical energy in the system when he shortened the rope?

W=___

#### Questions Cloud

 Calculate how far is the lens from the slide : A transparent photographic slide is placed in front of a converging lens with a focal length of 2.33 cm. An image of the slide is formed 11.4 cm from the slide. How far is the lens from the slide if the image is real What is the focal length of the rearview mirror : The right-side rearview mirror of Mike's car says that objects in the mirror are closer than they appear. Mike decides to do an experiment to determine the focal length of this mirror. He holds a plane mirror next to the rearview mirror and views .. Explain density of an aqueous solution of potassium nitrate : What is the density of an aqueous solution of potassium nitrate, that has a normal boiling point of 103.0 degrees Celsius, and an osmotic pressure of 122 at 25 degrees Celsius Direction of the magnetic induction at the center of loop : A circular loop of radius 50 mm in the plane of the paper carries a counterclockwise current of 15 A. It is submerged in a medium that has a relative permeability of 3.0 Calculate the magnitude and direction of the magnetic induction at the center of.. What is the new rotational energy of the system : Two astronauts, each having a mass M, are connected by a rope of length d having negligible mass. They are isolated in space, orbiting their center of mass at speeds v. What is the new rotational energy of the system What are the magnitude and sign of the unknown charge : A 20-mC charge is 4 cm above an unknown charge q. The electric intensity at a point 1 cm above the 20-mC charge is 2.20x109 N/C and is directed upward. What are the magnitude and sign of the unknown charge? Explain the equilibrium concentration of the red iron : If the reaction between iron (III) ion and thiocyanate ion yielded an equilibrium concentration of .15 M for each of these ions, what is the equilibrium concentration of the red iron (III)-thiocyanate complex Evaluate by how much is the column compressed : A 3.4-m-tall, 90-cm-diameter concrete column supports a 4.0×10^5kg load. By how much is the column compressed Find the frequency of this reflected wave : A firefighter on the back of the fire engine hears the sound waves after they are reflected from the wall. What is the frequency of this reflected wave as heard by this firefighter

### Write a Review

#### What is the total momentum of the system after the collision

What is the total momentum of system after the collision.

#### What is the pressure at the bottom of pool

according to the IOC, an Olympic diving pool must be at least 5m deep. What is the pressure at the bottom of a 5m deep pool

#### How many complete damped oscillations will have occurred

An LC circuit consists of a capacitor, C = 4.08 µF, and an inductor, L = 4.92 mH. The capacitor is fully charged using a battery and then connected to the inductor. How many complete damped oscillations will have occurred

#### Compute how much time passes on the astronauts clocks

If astronauts could travel at v = 0.910c, we on Earth would say it takes (4.20 / 0.910) = 4.62 years to reach Alpha Centauri, 4.20 light-years away. How much time passes on the astronauts' clocks

#### The overhead view is approximately to scale

You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.

#### How much power is dissipated in the coils

A small electric car overcomes a 250 N friction force when traveling 30 km/h. How much power is dissipated in the coils

#### What was the torque acting on the windmill

A windmill has an initial angular momentum of 8270 kg · m2/s. The wind picks up, and 5.81 s later the windmill's angular momentum is 9310 kg · m2/s

#### Find the electric current in the circuit

A battery has an emf of 5.9 V and internal resistance of 0.78 ?. The battery is attached to the load resistor R = 7.3 ?. Find the electric current in the circuit.

#### Determine the location of the object from the source

Ultrasound intensity level: Beta = 10Log (I2/I1), I1 and I2 = intensity at different locations/times An ultra sound signal is sent under sea water (v=1530m/s) to detect the location of an object. Determine the location of the object from the source

#### Find the electric field just outside the paint layer

A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 14.0cm , giving it a charge of -11.0Î¼C. Find the electric field just outside the paint layer

#### How much work is done by gravitational force on the crate

A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.46 m/s. The pulling force is 94 N parallel to the incline, which makes an angle of 20.2° with the horizontal. The coefficient of kinetic friction is 0.400, and the crat..

#### Illustrate what is the grocery carts final speed

A grocery cart is pushed along an aisle by a shopper who exerts a constant horizontal force of . The acceleration of gravity is . If all frictional forces are neglected and the cart starts from rest, illustrate what is the grocery cart’s final s..