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
What is the result of combining all colors of the visible spectrum?
A solid disk with a radius of #24 m# and mass of #8 kg# is rotating on a frictionless surface. If #480 W# of power is used to increase the disk's rate of rotation, what torque is applied when the disk is rotating at #3 Hz#?
If a projectile is shot at an angle of #pi/3# and at a velocity of #36 m/s#, when will it reach its maximum height??
A projectile is shot from the ground at an angle of #pi/4 # and a speed of #2/5 ms^-1#. Factoring in both horizontal and vertical movement, what will the projectile's distance from the starting point be when it reaches its maximum height?
An object with a mass of #2 kg# is revolving around a point at a distance of #7 m#. If the object is making revolutions at a frequency of #1 Hz#, what is the centripetal force acting on the object?
If an object is moving at #10 m/s# over a surface with a kinetic friction coefficient of #u_k=3 /g#, how far will the object continue to move?
Objects A and B are at the origin. If object A moves to #(-7 ,2 )# and object B moves to #(-5 ,-6 )# over #2 s#, what is the relative velocity of object B from the perspective of object A?
An object with a mass of #4 kg# is on a plane with an incline of # - pi/8 #. If it takes #18 N# to start pushing the object down the plane and #5 N# to keep pushing it, what are the coefficients of static and kinetic friction?
A car of mass 1490 kg makes a 23.0 m radius turn at 7.85 m/s on flat ground. What is the (minimum) coefficient of static friction?
If a projectile is shot at an angle of #pi/12# and at a velocity of #2 m/s#, when will it reach its maximum height??
How much work would it take to push a # 2 kg # weight up a # 2m # plane that is at an incline of # (5pi) / 12 #?
How does the law of universal gravitation apply to planet motion around the Sun?
A charge of #-2 C# is at #(4, -5)# and a charge of #1 C# is at #(-3 , 4 ) #. If both coordinates are in meters, what is the force between the charges?
How are force and power related?
Two objects have masses of #4 MG# and #18 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #7 m# to #2 m#?
Josh rolled a bowling ball down a lane in 2.5 s. The ball traveled at a constant acceleration of 1.8 m/s2 and was traveling at a speed of 7.6 m/s by the time it reached the pins at the end of the lane. How fast was the ball going when it left?
Some very hot rocks have a temperature of #150 ^o C# and a specific heat of #140 J/(Kg*K)#. The rocks are bathed in #70 L# of boiling water. If the heat of the rocks completely vaporizes the water, what is the minimum combined mass of the rocks?
Two boys on skates push off from each other. The 40 kg boy moves to the left at 10 m/s. lf the other boy moves to the right at 8 m/s, what is his mass?
A model train with a mass of #3 kg# is moving along a track at #8 (cm)/s#. If the curvature of the track changes from a radius of #12 cm# to #18 cm#, by how much must the centripetal force applied by the tracks change?
A charge of #-6 C# is at #(3, -1 )# and a charge of #-4 C# is at #( -3, 7 )#. If both coordinates are in meters, what is the force between the charges?