# Adrian Ayala

Physics teacher | Experienced educator in USA

I hold a degree in Physics from The American College of Financial Services. With a passion for unraveling the mysteries of the universe, I bring a deep understanding of physics concepts to my teaching. From classical mechanics to quantum theory, I strive to make complex topics accessible and engaging for my students. With a dedication to fostering a supportive learning environment, I aim to empower students to excel in their academic pursuits and develop a lifelong love for physics. Let's explore the wonders of the universe together.

## Questions

An object has a mass of #4 kg#. The object's kinetic energy uniformly changes from #18 KJ# to # 48KJ# over #t in [0, 9 s]#. What is the average speed of the object?

A solid disk, spinning counter-clockwise, has a mass of #6 kg# and a radius of #3/5 m#. If a point on the edge of the disk is moving at #1 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?

Can anyone explain Lenz's law with an example?

If a #7/2 kg# object moving at #9/4 m/s# slows to a halt after moving #3/8 m#, what is the coefficient of kinetic friction of the surface that the object was moving over?

How much work does it take to raise a #7 kg # weight #28 m #?

What would be the effect of connecting the battery the way round?

How does the Bohr model of an atom differ from the modern theory?

How does acceleration change as a car increases speed?

Please solve with a detailed explanation?

What torque would have to be applied to a rod with a length of #1 m# and a mass of #1 kg# to change its horizontal spin by a frequency of #7 Hz# over #3 s#?

How do force and momentum relate?

A model rocket is shot straight upward with an initial velocity of 32 m/s. Its upward acceleration is a constant 6 m/s2. When the fuel is used up at a height of 75 m, what is its velocity?

What is the force, in terms of Coulomb's constant, between two electrical charges of #-2 C# and #-3 C# that are #6 m # apart?

A charge of #9 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #15 J# to #9 J#, what is the voltage between points A and B?

What is the dot product of #<-1,-2,1># and #<-1, 2,3 >#?

A projectile is shot from the ground at a velocity of #22 m/s# and at an angle of #(2pi)/3#. How long will it take for the projectile to land?

A box with an initial speed of #12 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #8/7 # and an incline of #( pi )/4 #. How far along the ramp will the box go?

What is the speed of an object that travels from #( -2,1,2) # to #( -3, 0,-6 ) # over #3 s#?

How does acceleration differ from force?

An object with a mass of #6 kg# is hanging from a spring with a constant of #12 (kg)/s^2#. If the spring is stretched by # 1 m#, what is the net force on the object?