What is the length of the rotating spring

Reference no: EM13556391

A string weed trimmer utilizes a length of nylon string thatrotates about an axis perpendicular to one end of the string. Thestring rotates at an angular speed of 47 rev/s, and its tip has atangential speed of 54 m/s. What is the length of the rotatingspring?
a. 0.18 m
b. 0.44 m
c. 0.31 m
d. 0.87 m
e. 0.62 m

Reference no: EM13556391

Questions Cloud

Direction of the net force on the particle at the origin : A particle with charge of 4 microcoloumbs is at the origin,another identical particle is placed 2 m from the origin on thepositive x-axis and another 2 m on the positive y-axis. Provide asketch with vectors representing the forces on the charge at..

What was speedat which the ball left the quarterbacks hand : The longest recorded pass in an NFL game traveled 83 yards in theair from the quarterback to the receiver. Assuming that thepass was thrown at the optimal 45 degree angle, what was the speedat which the ball left the quarterbacks hand?

How many revolutions does the tire make beforewearing out : The warranty on a new tire says that an automobile can travel for adistance of 96 000 km before the tire wears out. The radius of thetire is 0.31 m. How many revolutions does the tire make beforewearing out?

Determine magnitude of the earths centripetal acceleration : The earth orbits the sun once a year (3.16 x 10^7 s) in a nearlycircular orbit of radius 1.50 x 10^11 m. With respect to the sun,determine the magnitude of the earth’s centripetal acceleration.

What is the length of the rotating spring : A string weed trimmer utilizes a length of nylon string thatrotates about an axis perpendicular to one end of the string. Thestring rotates at an angular speed of 47 rev/s, and its tip has atangential speed of 54 m/s. What is the length of the rot..

Magnitude of average force exerted by the target on arrow : An archer shoots a 2.0x10^-2 kg arrow at a target with a speed of 50 m/s. When it hits a target, it penetrates to a depth of 8.6x10^-2 m. What was the magnitude of the average force exerted by the target on the arrow?

Potential difference across the plates changes : An empty capacitor is connected to a 24.0 V battery andcharged up. The capacitor is then disconnected from the battery,and a slab of dielectric material (κ = 3.5) isinserted between the plates. Find the amount by which the potential difference acr..

Two planemirrors producing multiple images : A person walks into a room that has, on opposite walls, two planemirrors producing multiple images. When the person is 5.00 ft from the mirror on theleft wall and 10.0 ft from the mirror on the right wall, find the distances from the person to the..

Potential difference between the cathode and the anode : In the electron gun pictured, a potential differenceof 10.9 kV is found to bringelectrons from rest at the cathode to 6.2 x 107 m/sat the anode. If the electrons reach the anode with a speedof 2.9 x 107 m/s,what is the potential difference between th..

User Account

All Pages