A typical laboratory centrifuge rotates at 4000 rpm. Test tubes have to be placed into a centrifuge very carefully because of the very large accelerations. What is the acceleration at the end of a test tube that is 10 cm from the axis of rotation? Express your answer in meters per second squared. VG ΑΣΦ a₁ = Submit Part B a2 = Request Answer Submit For comparison, what is the magnitude of the acceleration a test tube would experience if stopped in a 1.0-ms-long encounter with a hard floor after falling from height 1.0 m? Express your answer in meters per second squared. IVS ΑΣΦ ? Request Answer m/s² ? Review | Constants | Periodic Tabl m/s²

A runner taking part in the 200 m dash must run around the end of a track that has a circular arc with a radius of curvature of 40 m. The runner starts the race at a constant speed. If she completes the 200 m dash in 22.2 s and runs at constant speed throughout the race, what is the magnitude of her centripetal acceleration (in m/s2) as she runs the curved portion of the track? m/s?

I understand to find the centripetal acceleration = v^2/r, but how do you figure that out when nothing is listed?

A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal circular path the riders follow has a 4.8 m diameter, if the riders is subjected to a centripetal acceleration 1.3 times that due to gravity, what is the spinning speed in unit of revolutions per minute? Use g = 9.8 m/s2.

In an amusement park ride called The Roundup, passengers stand inside a 19.0 m -diameter rotating ring. After the ring has acquired sufficient speed, it tilts into a vertical plane, as shown in ( Figure 1). For help with math skills, you may want to review: Mathematical Expressions Involving Squares For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Vertical circle. Figure Rotation axis 1 of 1 > Suppose the ring rotates once every 5.30 s. If a rider's mass is 58.0 kg, with how much force does the ring push on her at the top of the ride? Express your answer with the appropriate units. Value Submit Part B μÀ Value Part C Request Answer Suppose the ring rotates once every 5.30 s. If a rider's mass is 58.0 kg, with how much force does the ring push on her at the bottom of the ride? Express your answer with the appropriate units. μÅ Units Submit Request Answer Units μА ? ? What is the longest rotation period of the wheel that will…

A car is traveling a curved section of highway, as shown from a top-down view in the figure below. The section of highway makes an arc of a circle. Initially the car is heading east, as indicated by its GPS system. After the car travels d = 852 m, it is heading 0 30.0° south of east. What is the radius of curvature of the car's path? Hint: Use s = re where is in radians. = W 3 E

In a laboratory test of tolerance for high acceleration, a pilot is swung in a circle 15.0 m in diameter. It is found that the pilot blacks out when he is spun at 30.6 rpm (rev/min). At what acceleration (in SI units) does the pilot black out? acceleration: 77.01 m/s? Express this acceleration in terms of a multiple of g. acceleration as a multiple of g: 7.858 If you want to decrease the acceleration by 22.0% without changing the diameter of the circle, by what percent must you change the time for the pilot to make one circle? percent of time change:

A model of a helicopter rotor has four blades, each of length 3.4 mm from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 500 rev/minrev/min. 1. What is the linear speed of the blade tip? Express your answer in meters per second. 2. What is the radial acceleration of the blade tip expressed as a multiple of the acceleration due to gravity, gg? Express your answer as a multiple of gg. 3.

A car travels at a constant speed around a circular track whose radius is 3.51 km. The car goes once around the track in 259 s. What is the magnitude of the centripetal acceleration of the car?

Answer a and  c