# Nathan Ashcroft

Physics teacher | Tutor for 8 years

I hold a degree in Physics from Eastern Mennonite University. With a passion for unraveling the mysteries of the universe, I thrive on sharing my knowledge with students. From classical mechanics to quantum theory, I offer clear explanations and engaging lessons to foster deep understanding. Let's explore the wonders of physics together, tackling questions across various subjects.

## Questions

An object is at rest at #(7 ,4 ,2 )# and constantly accelerates at a rate of #4/3 m/s# as it moves to point B. If point B is at #(3 ,1 ,9 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.

How did Coulomb study the repulsion and attraction forces of charged particles?

An object with a mass of #24 kg#, temperature of #210 ^oC#, and a specific heat of #7 J/(kg*K)# is dropped into a container with #48 L # of water at #0^oC #. Does the water evaporate? If not, by how much does the water's temperature change?

An object is at rest at #(1 ,5 ,1 )# and constantly accelerates at a rate of #4/3 m/s^2# as it moves to point B. If point B is at #(9 ,4 ,8 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.

How did physics change modern technology?

A projectile is shot at a velocity of #15 m/s# and an angle of #pi/12 #. What is the projectile's maximum height?

If an object is moving at #10 m/s# over a surface with a kinetic friction coefficient of #u_k=2 /g#, how far will the object continue to move?

A charge of #5# # C# is at #(9, 3)# and a charge of #-2# # C# is at #(-2, 7) #. If both coordinates are in meters, what is the force between the charges?

A ball with a mass of #2 kg# is rolling at #7 m/s# and elastically collides with a resting ball with a mass of #4 kg#. What are the post-collision velocities of the balls?

Does a moving massive object have more kinetic energy than a lighter object?

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

How is heat transferred in the troposphere?

Two objects have masses of #35 MG# and #21 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #8 m# to #14 m#?

What are some common mistakes students make with electromagnetic waves?

A box with an initial speed of #9 m/s# is moving up a ramp. The ramp has a kinetic friction coefficient of #2/3 # and an incline of #(5 pi )/12 #. How far along the ramp will the box go?

A truck pulls boxes up an incline plane. The truck can exert a maximum force of #3,200 N#. If the plane's incline is #pi/8 # and the coefficient of friction is #4/5 #, what is the maximum mass that can be pulled up at one time?

A violinist and a pianist simultaneously sound notes with frequencies of 436Hz and 440 hz,respectively. What beat frequency will the musicians hear?

What is the cross product of #<3 ,-4 ,-3 ># and #<-2 ,1 , -7 >#?

A 31.9 kg boy and a 55.6 kg girl are on the surface of a frozen lake, 10.0 m apart. Using a rope, the boy exerts a horizontal 5.05 N force on the girl, pulling her toward him. Calculate the magnitude of the boy's acceleration.

An object travels North at # 8 m/s# for #6 s# and then travels South at # 7 m/s# for # 4 s#. What are the object's average speed and velocity?