Three identical stars form an equilateral triangle that rotates around the center of the triangle as the stars move in a common circle about the center. Each star has a mass of 1.2x10^28 kg and the...

Three identical stars form an equilateral triangle that rotates around the center of the triangle as the stars move in a common circle about the center. Each star has a mass of 1.2x10^28 kg and the...

If an airplane makes a circular turn, what provides the centripetal force?

A 35,000 kg plane travelling 120 m/s turns in a full circle, the period being 12 s. If the plane maintains constant altitude and velocity, what is the g-force on the pilot?

A ball, attached to a string, moves in a circle. How does the tension of the string change if the speed of the ball is doubled?

A car can round a banked curve at an 84 m radius and a maximum speed of 16 m/s without relying on friction. What is the angle does the car bank when it turns?

A .25 kg object is attached to a 0.80m string. The object is pulled to a point so that the string makes an angle θ from the vertical. It is then released. At the bottom of the object's path,...

A radio controlled ariplane is suspended from a 0.80 m string. The plane revolves in a circle at a constant speed. The angle the string makes from the vertical is 60º. What is the speed of the plane...

A small stone rests on the outer edge of a disk which is whirling around at about 28 rotations per minute. The diameter of the disk is .32 m. What is the minimum coefficient of static...

A 1.4 kg ball is connected by two strings to a vertical rotating rod. Each of the strings has a length of 1.5 m and is tied to the rod with a separation of 1.8 m. The ball rotates in a horizontal...

A toy airplane attached to a string flies around in circles. 1. If the speed of the plane was doubled: a) What would happen to the tension in the string b)...

In an old-fashioned amusement park ride called Gravitron, Starship, or Alien Abduction, passengers stand inside a 3m tall, 12.5m diameter hollow steel cylinder with their backs against the wall. The...

In an old-fashioned amusement park ride called Gravitron, Starship, or Alien Abduction, passengers stand inside a 3m tall, 12.5m diameter hollow steel cylinder with their backs against the wall. The...

A) 5.0 meters per second B) 2.0 meters per second C) 10.0 meters per second D) 1.0 meters per second E) 1.5 meters per second

A 70 kg student is riding a roller coaster and is at the top of the vertical loop. The loop has a radius of 16 m, and the car's velocity at the top is 12 m/s. What is the student's apparent weight...

A rollercoaster track provides 6400 N of centripetal force on a rollercoaster car. The car travels at a speed of 22 m/s as it rounds a horizontal curve with a radius of 15 m. What is the mass of the...

You are a roller coaster engineer, and safety inspectors tell you that your roller coaster has too much centripetal force. What can you do to decrease the centripetal foce acting on your roller...

Gabriella (75 kg) rides a roller coaster. What is her acceleration at the top of the vertical loop if she feels like her weight is 1200N? What is Gabriella's...

A centripetal force of 4000N keeps a 50kg rollercoaster car traveling in a circular path at the top of a loop. Calculate the normal force of the track on the rollercoaster car. SHOW...

A roller coaster car of mass of 300 kg is going through a loop at a velocity of 15 m/s. If the loop has a radius of 12 m, what centripetal force is the roller coaster experiencing? SHOW...

A. What is the period of rotation? B. What is the velocity if the object is 14 cm from the center of rotation? C. What is the centripetal force on a 35 g mass spinning 14 cm from the center...