# Layla Ahmed

Physics teacher | Tutor for 7 years

I hold a degree in Physics from the University of San Diego. My passion lies in unraveling the mysteries of the universe and making complex concepts understandable to all. With a solid foundation in physics, I offer clear explanations and insightful guidance to students across various topics. Whether it's mechanics, electromagnetism, or quantum physics, I'm dedicated to fostering a deep understanding and appreciation for the wonders of the natural world. Let's explore the boundless possibilities of physics together and embark on a journey of discovery and enlightenment.

## Questions

A charge of #-2 C# is at the origin. How much energy would be applied to or released from a # 4 C# charge if it is moved from # (7 ,5 ) # to #(3 ,-9 ) #?

An object is at rest at #(8 ,2 ,5 )# and constantly accelerates at a rate of #7/4 m/s^2# as it moves to point B. If point B is at #(2 ,3 ,7 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.

A model train, with a mass of #4 kg#, is moving on a circular track with a radius of #15 m#. If the train's kinetic energy changes from #96 j# to #48 j#, by how much will the centripetal force applied by the tracks change by?

A key falls from a bridge that is 50 m above the water. It falls directly into a model boat, moving with constant velocity, that is 18 m from the point of impact when the key is released. What is the speed of the boat ?

If an object is moving at #50 m/s# over a surface with a kinetic friction coefficient of #u_k=8 /g#, how far will the object continue to move?

How fast will an object with a mass of #16 kg# accelerate if a force of #88 N# is constantly applied to it?

Two objects have masses of #5 MG# and #8 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #140 m# to #160 m#?

An object is at rest at #(8 ,2 ,5 )# and constantly accelerates at a rate of #7/4 m/s^2# as it moves to point B. If point B is at #(6 ,5 ,1 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.

A projectile is shot from the ground at a velocity of #1 m/s# and at an angle of #(pi)/2#. How long will it take for the projectile to land?

An electric toy car with a mass of #2 kg# is powered by a motor with a voltage of #4 V# and a current supply of #2 A#. How long will it take for the toy car to accelerate from rest to #3 m/s#?

An object with a mass of #8 kg# is hanging from a spring with a constant of #9 kgs^-2#. If the spring is stretched by # 12 m#, what is the net force on the object?

A charge of #7 C# is at the origin. How much energy would be applied to or released from a # 9 C# charge if it is moved from # (-5, 1 ) # to #(2 ,-1 ) #?

What is the electric current produced when a voltage of #9 V# is applied to a circuit with a resistance of #90 Omega#?

A model train, with a mass of #3 kg#, is moving on a circular track with a radius of #2 m#. If the train's rate of revolution changes from #5/3 Hz# to #1/8 Hz#, by how much will the centripetal force applied by the tracks change by?

At what height is an object that has a mass of 500 N, if its gravitational potential energy is 9800 Joules?

A circuit with a resistance of #6 Omega# has a fuse that melts at #8 A#. Can a voltage of #49 V# be applied to the circuit without blowing the fuse?

A cell has an e.m.f of 1.08 v and an internal resistor of 0.5 ohm. when it is connected in series with resistor of R , the potential difference between the terminals fell to 0.96 v . what was the value of R?

An object travels North at #8 m/s# for #7 s# and then travels South at #3 m/s# for #4 s#. What are the object's average speed and velocity?

An object with a mass of #2 kg# is on a plane with an incline of #pi/12 #. If the object is being pushed up the plane with #7 N # of force, what is the net force on the object?

How to find the final equilibrium temperature, when a hot iron mass is placed in water?