Part A For a biological sample in a 15.1 cm radius centrifuge to have a centripetal...
A lab centrifuge with radius 15 cm turns at 85 rev/s . What should be its angular acceleration for a point at the 15 cm radius to have tangential acceleration that is 4 % of its centripetal acceleration? Express your answer to two significant figures and include the appropriate units. α =
How fast (in rpm) must a centrifuge rotate if a particle 7.6 cm from the axis of rotation is to experience an acceleration of 500000 g 's? Express your answer using two significant figures
A sphere of radius r = 34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0° incline that is 10.0 m long. Part A Calculate its translational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. A Value Units Submit Request Answer Part B Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and...
The 7.00-cm-long second hand on a watch rotates smoothly. Part A What is its angular speed? Express your answer in radians per second to three significant figures rad/s Submit ▼ Part B What is the speed of the tip of the hand? O Type here to search Problem 7.11 Enhanced with Feedback rad/s Submit Request Answer Part B What is the speed of the tip of the hand? Express your answer with the appropriate units. u= 1 Value Submit Request...
A sphere of radius r =34.5 cm and mass m = 1.80 kg starts from rest and rolls without slipping down a 30.0? incline that is 10.0m long. Part A Calculate its translational speed when it reaches the bottom. v= Part B Calculate its rotational speed when it reaches the bottom. Express your answer using three significant figures and include the appropriate units. w = Part C What is the ratio of translational to rotational kinetic energy at the bottom?...
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Human centrifuges are used to train military pilots and astronauts in preparation for high-g maneuvers. A trained, fit person wearing a g-suit can withstand accelerations up to about 9g (88.2 m/s2) without losing consciousness. HINT Apply the expression for the centripetal acceleration, expressed in terms of the angular speed, w. Click the hint button again to remove this hint. (a) If a human centrifuge has a radius of 4.88 m, what angular speed (in rad/s)...
((QUESTION 1)) The driver of a car sets the cruise control and ties the steering wheel so that the car travels at a uniform speed of 15m/s in a circle with a diameter of 100m . Part A Through what angular distance does the car move in 3.70min ? Express your answer using two significant figures. ? = ____________ rad Part B What arc length does it travel in this time? Express your answer using two significant figures. s =...
A point on the rim of a 0.25 m radius rotating wheel has a centripetal acceleration of 4.0m/s2. What is the angular speed of the wheel? 4.0 rad/s is the correct answer.
HMK #7: Centripetal Acceleration Exercise 3.30 An object moves in a horizontal circle at constant speed v (in units of m/s). It takes the object T seconds to complete one revolution. Correct Part If the radius doubles, by what factor must the period change to keep Grad the same? Express your answer using three significant figures. IVO AXOO O? T2/T = 0 You have already submitted this answer. Enter a new answer No credit lost. Try again. Submit Previous Answers...
Astronauts use a centrifuge to simulate the acceleration of a
rocket launch. The centrifuge takes 40.0 s to speed up from rest to
its top speed of 1 rotation every 1.20 s . The astronaut is
strapped into a seat 4.90 m from the axis.
please show work. need help with both
questions.
Problem 4.59 Part A Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 40.0 s to speed up from rest to...