O A constant nonzero net torque is exerted on an object. Which of the following can not be constant? Choose all that apply. (a) angular position (b) angular velocity (c) angular acceleration (d) moment of inertia (e) kinetic energy (f) location of the center of mass

A small grinding wheel has a moment of inertia of $4.0 \times 10 ^ { - 5 } \mathrm { kg } \cdot \mathrm { m } ^ { 2 }$. What net torque must be applied to the wheel for its angular accelaration to be $150 \mathrm { rad } / \mathrm { s } ^ { 2 }$?

The tube is made of plastic, is $5 \mathrm{~mm}$ thick, and has the mean dimensions shown. Determine the average shear stress at points $A$ and $B$ if it is subjected to the torque of $T=5 \mathrm{~N} \cdot \mathrm{m}$. Show the shear stress on volume elements located at these points

Jason and Quan share a bicycle. Jason rides for an agreed-upon distance and then locks up the bike for Quan, who has been walking. Meanwhile, Jason walks on ahead. The friends alternate walking and riding. If both boys walk at a rate of $4 \mathrm{~mph}$ and ride at a rate of $12 \mathrm{~mph}$, what part of the time has the bike been locked up when Jason and Quan meet again?

The third part of the poem tells how to determine the combination of the lock: Each locked in chests where they will stay. Until the time someone finds a way. To open each lock with a combination, Using digits of the coordinates of each location. . the coordinates of each location refers to the coordinates of the orthocenter and the centroid you found. If the combination consists of three numbers that are digits of the coordinates of the location of the treasure, list some possible combinations for the lock on the second treasure chest.

A 10.0 kg block falls 30.0 m onto a vertical spring whose lower end is fixed to a platform. When the spring reaches its maximum compression of 0.200 m, it is locked in place. The block is then removed and the spring apparatus is transported to the Moon, where the gravitational acceleration is g/6. A 50.0 kg astronaut then sits on top of the spring and the spring is unlocked so that it propels the astronaut upward. How high above that initial point does the astronaut rise?

The balance wheel of a watch is a thin ring of radius $0.95 \mathrm{~cm}$ and oscillates with a frequency of $3.10 \mathrm{~Hz}$. If a torque of $1.1 \times 10^{-5} \mathrm{~m} \cdot \mathrm{N}$ causes the wheel to rotate $45^{\circ}$, calculate the mass of the balance wheel.

The propeller of a ship is to be studied with a $1: 10$ scale model. (a) Assuming that the propeller operates close to the surface, select the propeller speed of the model if the prototype speed is $600~\mathrm{rpm}$. (b) What torque would be expected if $1.2 \mathrm{~N} \cdot \mathrm{m}$ is measured on the model?

Size the helical gears in if the gearset in a 79-tooth, $30^{\circ}$ helix angle, helical gear is in mesh with a $20$-tooth pinion. The $p_{d}=6$ and $\phi=20^{\circ}$. Find the transverse and axial contact ratios. transmits $30 \mathrm{~kW}$ at $1200$ pinion $\mathrm{rpm}$, find the torque on each shaft. for a surface factor of safety of at least $1.2$ assuming a steady torque, $20^{\circ}$ pressure angle, full depth teeth, quality index of $11$ , an $\mathrm{AISI} ~4340$ steel pinion, and an $\mathrm{A}-7-\mathrm{d}$ nodular iron gear.

Write T for the true statement and F for the false statement. Grendel's mother was another loathsome monster.

The torque $M$ required to turn the cone-plate viscometer in Fig. P5.35 depends on the radius $R$, rotation rate $\Omega$, fluid viscosity $\mu$, and cone angle $\theta$. Rewrite this relation in dimensionless form. How does the relation simplify it if it is known that $M$ is proportional to $\theta$?

In this exercise, use the limit process to find the area of the region between the graph of the function and the $x$-axis over the given interval. Sketch the region.

$$y=x^2+1, \quad[0,3]$$

Match the term with its description. _ Determine traits. A. parents B. alleles C. dominant D. segregate E. genes.

The signs of _____ are heat, redness, pain, and swelling.