# 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

A ball with a mass of #300 g# is projected vertically by a spring loaded contraption. The spring in the contraption has a spring constant of #12 (kg)/s^2# and was compressed by #7/6 m# when the ball was released. How high will the ball go?

What is the relationship between net force and acceleration?

If a rocket with a mass of 3500 tons vertically accelerates at a rate of # 3/5 m/s^2#, how much power will the rocket have to exert to maintain its acceleration at 12 seconds?

A model train with a mass of #4 kg# is moving along a track at #3 (cm)/s#. If the curvature of the track changes from a radius of #4 cm# to #27 cm#, by how much must the centripetal force applied by the tracks change?

An object with a mass of #6 kg# is pushed along a linear path with a kinetic friction coefficient of #u_k(x)= 1+5cotx #. How much work would it take to move the object over #x in [(pi)/12, (3pi)/8]#, where #x# is in meters?

An object travels North at #1 m/s# for #8 s# and then travels South at #7 m/s# for # 5 s#. What are the object's average speed and velocity?

A charge of #5 C# passes through a circuit every #5 s#. If the circuit can generate #15 W# of power, what is the circuit's resistance?

If a stone is dropped at an altitude of 174.9 m from a helicopter which is ascending with a velocity of 20.68 m/s, how long does the stone take to reach the ground?

How does physics relate to nursing?

A ball with a mass of #6 kg # and velocity of #5 m/s# collides with a second ball with a mass of #1 kg# and velocity of #- 7 m/s#. If #50%# of the kinetic energy is lost, what are the final velocities of the balls?

A ball with a mass of #9 kg# moving at #7 m/s# hits a still ball with a mass of #15 kg#. If the first ball stops moving, how fast is the second ball moving?

How does Newton's third law apply to soccer?

A spring with a constant of #12 (kg)/s^2# is lying on the ground with one end attached to a wall. An object with a mass of #6 kg# and speed of #3 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?

How does angular momentum create a perpendicular force? How does angular momentum create a perpendicular force? How does angular momentum create a perpendicular force?

An object with a mass of #12# #kg# is on a surface with a kinetic friction coefficient of # 1 #. How much force is necessary to accelerate the object horizontally at #7 # #ms^-2#?

How does the strength of an object's electric field change with distance?

A force field is described by #<F_x,F_y,F_z> = < xy , xy-x, 2y -zx > #. Is this force field conservative?

What is the force, in terms of Coulomb's constant, between two electrical charges of #18 C# and #35 C# that are #15 m # apart?

If an object with uniform acceleration (or deceleration) has a speed of #8# #ms^-1# at #t=0# and moves a total of #16# #m# by #t=7#, what was the object's rate of acceleration?

A net force of +125 N acts on an object. What is the magnitude and direction of the single force that will produce equilibrium?