The earth is approximately spherical, with a diameter of 1.27 * 107 m. It takes 24.0 hours for the earth to complete one revolution. What are the tangential speed and radial acceleration of a point on the surface of the earth, at the equator?
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The earth is approximately spherical, with a diameter of
1.27 * 107 m. It takes 24.0 hours for the earth to complete one revolution.
What are the tangential speed and radial acceleration of a point on
the surface of the earth, at the equator?
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- What is the tangential speed of Nairobi, Kenya, a city near the equator? The earth makes one revolu-tion every 23.93 h and has an equatorial radius of 6380 kmAn ultracentrifuge accelerates from rest to 9.97×10^5 rpm in 1.51 min. What is its angular acceleration in radians per second squared? What is the tangential acceleration of a point 9.10 cm from the axis of rotation? What is the radial acceleration in meters per second squared and in multiples of ? of this point at full revolutions per minute?A small fan has blades that have a radius of 0.0600 m. When the fan is turned on, the tips of the blades have a tangential acceleration of 11.4 m/s² as the fan comes up to speed. What is the angular acceleration a of the blades?
- A “blink of an eye” is a time interval of about 150 ms for an average adult. The “closure” portion of the blink takes only about 55 ms. Let us model the closure of the upper eyelid as uniform angular acceleration through an angular displacement of 12.2°. A) What is the value of the angular acceleration the eyelid undergoes while closing? in rad/s^2 B) What is the tangential acceleration of the edge of the eyelid while closing if the radius of the eyeball is 1.25 cm? in m/s^2A cylinder 32.6 cm in diameter is at rest initially. It is then given an angular acceleration of 14.5 rad/s^2. Find the tangential speed of the outer edge of the cylinder at 6.08 s. Give your answer in m/s.The hard disk drive in a computer spins at a rate of 7.20 x 10^3 rpm. If the disk has a radius of 8.26 cm, what is the tangential speed of the outer edge of the disk?
- An astronaut is inside a centrifuge that has a radius of 10 m. The astronaut starts from rest and experiences a constant angular acceleration for 10 seconds. After the 10 seconds, the astronaut is experiencing 10g, meaning that the centripetal acceleration is a. 98 . The angular displacement of the astronaut during the 10 seconds was rad.An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a particular disk is spun at 704.8 rad/s while it is being read, and then is allowed to come to rest over 0.502 seconds, what is the magnitude of the average angular acceleration of the disk? average angular acceleration: If the disk is 0.12 m in diameter, what is the magnitude of the tangential acceleration of a point 1/13 of the way out from the center of the disk? tangential acceleration: x10 TOOLS rad s² mWhat is the magnitude of the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 76.0 rev/min in 5.00 s? One second after the bug starts from rest, what is the magnitude of its tangential acceleration? One second after the bug starts from rest, what is the magnitude of its centripetal acceleration?
- include FBD. thanks!A race car, starting from rest, travels around a circular turn of radius 28.5 m. At a certain instant, the car is still accelerating, and its angular speed-is 0.794 rad/s. At this time, the total acceleration (centripetal plus tangential) makes an angle of 35.0° with respect to the radius. What is the magnitude of the total acceleration? Number UnitsHow do I find the tangential speed of a ball going in uniform circular motion, in the problem I'm working on, a 1.3 m long string makes a 48.8 degree angle below the hoizontal. I am confused as to how I find the w to plug into the Vt=rw equation to get the tangential speed. Thanks for your help!