An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. a. What is its angular acceleration in rad/s²? b.What is the tangential acceleration (in m/s²) of a point 10.00 cm from the axis of rotation? c. What is the radial acceleration in m/s²? and in multiples of g of this point at full rpm?

An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min.

• What is the tangential acceleration of a point 9.50 cm from the axis of rotation?

The answer should be given in m/s^2.

A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0.700 rad/s$^2$ . (a) How long does it take to come to rest? (b) How many revolutions does it make before stopping?

With the aid of a string, a gyroscope is accelerated from rest to 32 rad/s in 0.40 s under a constant angular acceleration. (a) What is its angular acceleration in rad/s²? (b) How many revolutions does it go through in the process?

Everyday application: Suppose a yo-yo has a center shaft that has a 0.250 cm radius and that its string is being pulled. (a) If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s$^2$ , what is the angular acceleration of the yo-yo? (b) What is the angular velocity after 0.750 s if it starts from rest? (c) The outside radius of the yo-yo is 3.50 cm. What is the tangential acceleration of a point on its edge?

You have a grindstone (a disk) that is 90.0 kg, has a 0.340-m radius, and is turning at 90.0 rpm, and you press a steel axe against it with a radial force of 20.0 N. (a) Assuming the kinetic coefficient of friction between steel and stone is 0.20, calculate the angular acceleration of the grindstone. (b) How many turns will the stone make before coming to rest?

At its peak, a tornado is $60.0 \mathrm{~m}$ in diameter and carries $500 \mathrm{~km} / \mathrm{h}$ winds. What is its angular velocity in revolutions per second?

Find the area of each triangle. Triangle. b = 200 cm h = 100 cm

With the aid of a string, a gyroscope is accelerated from rest to 32 rad/s in 0.40 s. (a) What is its angular acceleration in rad/s$^2$? (b) How many revolutions does it go through in the process?

What do these people do based on the cues? Modelo: ¿Qué hace Alejandro en el centro de reciclaje? (seguir instrucciones) Sigue las instrucciones del centro de reciclaje.

¿Qué hace Inés en la comunidad? (recoger la ropa usada)

A tennis court's dimensions can be represented by a width of $4 x + 25$ feet and a length of $2 x + 15$ feet. Write a polynomial for the area of the court.

If you compared the genomes of an invertebrate (e.g., a crab) and a human with regard to the presence of genes for immunity, what might you find?

4260 $\div$ 15

Ultracentrifuge. Find the required angular speed (in rpm) of an ultracentrifuge for the radial acceleration of a point $2.50 \mathrm{~cm}$ from the axis to equal $400,000 \mathrm{~g}$.