# 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

A projectile is shot from the ground at a velocity of #5 m/s# and at an angle of #(2pi)/3#. How long will it take for the projectile to land?

What is the projection of #<2,-7,1 ># onto #<4,-5,9 >#?

How does force affect friction?

An object with a mass of #2 kg# is revolving around a point at a distance of #5 m#. If the object is revolving at a rate of #3 Hz#, what is the centripetal force on the object?

A projectile is shot at an angle of #pi/3 # and a velocity of # 8 m/s#. How far away will the projectile land?

An object with a mass of #4 kg# is on a plane with an incline of #pi/12 #. If the object is being pushed up the plane with # 3 N # of force, what is the net force on the object?

Does the Norton's theorem provide a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance?

A model rocket with a mass of 2.7kg is launched straight up from the ground at a speed of 110m/s. What is its mechanical energy at the maximum height?

An ice skater moving at 10.0 m/s coasts to a halt in 100 m on a smooth ice surface. What is the coefficient of friction between the ice and the skates?

An astronaut with a mass of #75 kg# is floating in space. If the astronaut throws a #4 kg# object at a speed of #6 m/s#, how much will his speed change by?

A solid disk, spinning counter-clockwise, has a mass of #7 kg# and a radius of #5/2 m#. If a point on the edge of the disk is moving at #4/3 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?

How do you calculate voltage drop across a resistor?

A projectile is shot from the ground at an angle of #pi/8 # and a speed of #8 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?

What type of heat transfer helps the balloon rise?

Some very hot rocks have a temperature of #720 ^o C# and a specific heat of #250 J/(Kg*K)#. The rocks are bathed in #50 L# of boiling water. If the heat of the rocks completely vaporizes the water, what is the minimum combined mass of the rocks?

A box with an initial speed of #7 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #8/3 # and an incline of #pi /8 #. How far along the ramp will the box go?

When a supply of hydrogen gas is held in a 4 liter container at 320 K it exerts a pressure of 800 torr. The supply is moved to a 2 liter container, and cooled to 160 K. What is the new pressure of the confined gas?

A charge of #35# #C# passes through a circuit every #5# #s#. If the circuit can generate #7# #W# of power, what is the circuit's resistance?

I need help with this please. Thanks?!

What is an example of a projectile motion practice problem?