Two 0.60 kg basketballs, each with a radius of 10 cm, are just touching. Ignore any...

Two 0.60 kg basketballs, each with a radius of 10 cm, are just touching. Ignore any other gravitational interactions.

(a) How much energy is required to change the separation between the centers of the basketballs to 1.0 m?
_____ J
(b) How much energy is required to change the separation between the centers of the basketballs to 10 m?
_____ J

As usual, if you don't draw the picture, label distances, you'll use the formula incorrectly.

Expert Solution

genius_generous answered 7 months ago

A disk of radius 14 cm and has a mass of 10 kg is attached to...

A disk of radius 14 cm and has a mass of 10 kg is attached to a hub which is a disk of mass 8 kg and radius 5cm. The disks are mounted on a frictionless axel that runs through the center. A rope passes over the hub and supports a 10 kg mass on one side and a 5 kg mass on the other. If the rope does not slip on the hub, a.) What is the tension in...

A 1.5 kg solid cylinder (radius = 0.15 m , length = 0.60 m ) is...

A 1.5 kg solid cylinder (radius = 0.15 m , length = 0.60 m ) is released from rest at the top of a ramp and allowed to roll without slipping. The ramp is 0.80 m high and 5.0 m long. When the cylinder reaches the bottom of the ramp, what is its total kinetic energy? When the cylinder reaches the bottom of the ramp, what is its rotational kinetic energy? When the cylinder reaches the bottom of the ramp,...

There are two discs of masses 3.0 kg and 2.0 kg and radii 10 cm and...

There are two discs of masses 3.0 kg and 2.0 kg and radii 10 cm and 5 cm, respectively. The discs are rotating about their respective center of masses with angular speeds 200 rpm and 300 rpm. The discs are brought together into contact face-to-face with their axes of rotation coincident. a) What is the angular speed of the two-disc system? b) What are the kinetic energies of the discs when they were apart? Denote them as K1 and K2....

A cylindrical 6.00-kg reel with a radius of 0.60 m and a frictionless axle, starts from...

A cylindrical 6.00-kg reel with a radius of 0.60 m and a frictionless axle, starts from rest and speeds up uniformly as a 4.00-kg bucket falls into a well, making a light rope unwind from the reel (Fig. P8.36). The bucket starts from rest and falls for 5.00s. (a) What is the linear acceleration of the falling bucket? (b) How far does it drop? (c) What is the angular acceleration of the reel?

A solid sphere of radius 10 cm and mass 3.0 kg is rotating about its end...

A solid sphere of radius 10 cm and mass 3.0 kg is rotating about its end at 5.6 rev/s. what is its kinetic energy?

A solid cylindrical 10 kg roll of roofing paper with radius of 15 cm, starting from...

A solid cylindrical 10 kg roll of roofing paper with radius of 15 cm, starting from rest rolls down a roof with a 20o incline (Figure below). (a) If the cylinder rolls 4.0 m without slipping, what is the angular speed about its center when leaving the roof? (b) If the roof edge of the house is 6.0 m above level ground, how far from the edge of the roof does the cylindrical roll land? (Figure not to scale.)

A solid cylinder of radius 10 cm and mass 12 kg starts from rest and rolls...

A solid cylinder of radius 10 cm and mass 12 kg starts from rest and rolls without slipping a distance L = 6.0 m down a roof that is inclined at angle  = 30o . a. What is the linear speed and the angular speed of the cylinder about its center as it leaves the roof? b. The roof’s edge is at height H = 5.0 m. How far horizontally from the roof’s edge does the cylinder hit the...

Assuming atoms of radius of 1.00 Å and atoms just touching one another, calculate the percentage...

Assuming atoms of radius of 1.00 Å and atoms just touching one another, calculate the percentage of the volume taken up in a face-centered cubic unit cell by those atoms.

Two metal disks, one with radius ?1 = 2.50 cm and mass ?1 = 0.800 kg...

Two metal disks, one with radius ?1 = 2.50 cm and mass ?1 = 0.800 kg and the other with radius ?2 = 5.00 cm and mass ?2 = 1.60 kg are welded together and mounted on a frictionless axis through their common center as shown to the right. a) A light string is wrapped around the edge of the smaller disk and a 1.50 kg block is suspended from the free end of the string. How far will the...

There are two loops, each having a 5-cm-radius. Each of the loops is charged to +20nC....

There are two loops, each having a 5-cm-radius. Each of the loops is charged to +20nC. The loops are oriented with their faces to each other and are .20 m apart. a) Find the electric field strength and direction halfway along an imaginary line connecting the centers of the two loops. (Do not just write down the answer, but show how you obtain it). b) If the left loop is now taken away, what is the electric field strength and...

Question