The angular speed of a rotor in a centrifuge increases from 471 to 1400 rad/s in a time of 4.60 s. (a) Obtain the angle through which the rotor turns. (b) What is the magnitude of the angular acceleration? (a) Numberi Units (b) Number i Units
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- A car initially traveling at 30.7 m/s undergoes a constant negative acceleration of magnitude 2.10 m/s? after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.340 m? 113.39 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rev (b) What is the angular speed of the wheels when the car has traveled half the total distance? 68.9 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s Need Help? Read ItAn automobile with 0.230 m radius tires travels 65,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?All parts
- An automobile with 0.240 m radius tires travels 90,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear?A centrifuge in a biochemistry laboratory rotates at an angular speed of 3,650 rev/min, clockwise (when viewed from above). When switched off, it rotates through 48.0 revolutions before coming to rest. Assuming it is constant, what is the magnitude of angular acceleration (in rad/s²)? rad/s² What is the direction of the angular acceleration (again, when viewed from above)? clockwise оо counterclockwise The magnitude is zero.Pls help ASAP
- A child is riding their bicycle. The rear wheel is spinning at an angular velocity of 193.35 rpm and they apply the brakes and stop in 3.695 s. How many revolutions did the wheel go through before it stopped?An automobile with 0.290 m radius tires travels 90,000 km before wearing them out. How many revolutions do the tires make, neglecting any backing up and any change in radius due to wear? revolutionsYou have a wheel that has a radius of 30cm that is initially at rest. The wheel accelerates at 1.5rad/s^2 for 3 seconds. What is the wheel’s linear displacement?