# Nicholas Agrusa

Physics teacher | Verified Expert

With a passion for unraveling the mysteries of the universe, my journey led me to delve into the complexities of physics. Graduating from California State University, Fresno, I bring a deep understanding of the subject to my tutoring sessions. Whether it's mechanics, electromagnetism, or quantum theory, I thrive on helping students grasp even the most challenging concepts. My aim is to inspire curiosity and foster a love for physics in every student I encounter. Together, let's explore the wonders of the cosmos and conquer academic challenges with confidence.

## Questions

How would you calculate the magnetic field in the following places: 33cm to the north of the wire? 230mm to the south of the wire? 880μm below the wire? 0.18m above the wire?

A car moving with constant acceleration covered the distance between two points 52.4 m apart in 5.96 s. Its speed as it passes the second point was 14.6 m/s. (a) At what prior distance from the first point was the car at rest?

An object, previously at rest, slides #9 m# down a ramp, with an incline of #pi/6 #, and then slides horizontally on the floor for another #14 m#. If the ramp and floor are made of the same material, what is the material's kinetic friction coefficient?

If a projectile is shot at an angle of #(2pi)/3# and at a velocity of #5 m/s#, when will it reach its maximum height?

A charge of #-2 C# is at #(6 , -5 )# and a charge of #-4 C# is at #(-3 , -9 ) #. If both coordinates are in meters, what is the force between the charges?

A charge of #9 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #20 J# to #11 J#, what is the voltage between points A and B?

What is instantaneous acceleration? Let me know by derivative. Thanks in anticipation.

What is the average speed, on #t in [0,5]#, of an object that is moving at #7 m/s# at #t=0# and accelerates at a rate of #a(t) =t^2-2t# on #t in [0,4]#?

A plane could fly at an average speed of 694 m/s. Calculate how long it would take the plane to fly around the world (which is #4.00 xx 10^7\ "m"#)?

If an object with a mass of #10 kg # is moving on a surface at #15 ms^-1# and slows to a halt after # 4 s#, what is the friction coefficient of the surface?

A tourist calculated that if he walks to the railroad station with a speed of 4 mph, he’ll miss the train by half an hour, but if he walks with a speed of 5 mph, he’ll reach the station 6 minutes before the departure of the train ?

What is the Standard Model?

When a ball at rest is dropped, can it rebound to a greater height than its original height?

Why do batteries run down?

What is the cross product of #[2,-1,2]# and #[1,-1,3] #?

A charge of #16 C# passes through a circuit every #12 s#. If the circuit can generate #1 W# of power, what is the circuit's resistance?

What is the gravitational potential energy of a # 5 kg# object on a shelf # 4/9 m # high?

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?

An object uniformly accelerates from 15.0m/s west to 35.0m/s west. What is the rate of acceleration if the displacement during this time was 43.0m?

An object with a mass of # 15 kg# is on a ramp at an incline of #pi/8 #. If the object is being pushed up the ramp with a force of # 7 N#, what is the minimum coefficient of static friction needed for the object to remain put?