# William Audy

Physics teacher | Verified Expert

With a background in Physics from Purdue University Fort Wayne, my passion lies in unraveling the mysteries of the universe. I thrive on sharing this excitement with my students, guiding them through the complexities of the subject matter. From classical mechanics to quantum theory, I offer clear explanations and foster critical thinking skills. With a commitment to nurturing curiosity and understanding, I empower students to grasp even the most challenging concepts. Join me on a journey of exploration and discovery in the fascinating world of physics.

## Questions

A cylinder has inner and outer radii of #9 cm# and #14 cm#, respectively, and a mass of #9 kg#. If the cylinder's frequency of counterclockwise rotation about its center changes from #1 Hz# to #7 Hz#, by how much does its angular momentum change?

A box with an initial speed of #7 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #3/2 # and an incline of #(2 pi )/3 #. How far along the ramp will the box go?

If a rocket with a mass of 3900 tons vertically accelerates at a rate of # 7/9 m/s^2#, how much power will the rocket have to exert to maintain its acceleration at 5 seconds?

A lizard accelerates from 2.5 m/s to 10.8 m/s in 4 seconds what is the lizards average acceleration?

A projectile is shot from the ground at an angle of #pi/6 # and a speed of #25 m/s#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?

A ball with a mass of #5 kg# moving at #3 m/s# hits a still ball with a mass of #16 kg#. If the first ball stops moving, how fast is the second ball moving?

A charge of #15 C# passes through a circuit every #2 s#. If the circuit can generate #15 W# of power, what is the circuit's resistance?

A solid disk with a radius of #3 m# and mass of #9 kg# is rotating on a frictionless surface. If #120 W# of power is used to increase the disk's rate of rotation, what torque is applied when the disk is rotating at #8 Hz#?

A charge of #24 C# passes through a circuit every #18 s#. If the circuit can generate #8 W# of power, what is the circuit's resistance?

What is the dot product of # (-300i + 200j - 150k)# and #(i + j -7k)#?

What is the speed of an object that travels from #( -9,4,-6) # to #( -9,-9,2) # over #3 s#?

Why is electric power transmitted at high voltages?

If a #5 kg# object moving at #2 m/s# slows to a halt after moving #50 m#, what is the coefficient of kinetic friction of the surface that the object was moving over?

What is the average speed of an object that is not moving at #t=0# and accelerates at a rate of #a(t) =8-t^2/4# on #t in [2,5]#?

A charge of #25 C# passes through a circuit every #4 s#. If the circuit can generate #1 W# of power, what is the circuit's resistance?

What are the differences between isothermal expansion and adiabatic expansion?

If a projectile is shot at an angle of #pi/6# and at a velocity of #18 m/s#, when will it reach its maximum height??

A charge of #27 C# passes through a circuit every #3 s#. If the circuit can generate #72 W# of power, what is the circuit's resistance?

A projectile is shot from the ground at an angle of #pi/6 # and a speed of #1 m/s#. When the projectile is at its maximum height, what will its distance, factoring in height and horizontal distance, from the starting point be?

If a projectile is shot at an angle of #pi/6# and at a velocity of #24 m/s#, when will it reach its maximum height??