# Elena Albarran

Physics teacher | Verified Expert

With a Physics degree from the University of West Florida, I'm passionate about unraveling the mysteries of the universe. As a dedicated tutor, I bring clarity to complex concepts, making physics accessible to all. My goal is to ignite curiosity and foster understanding in every student I work with. Let's embark on a journey of discovery together!

## Questions

Is a parallel circuit better than a series circuit?

An object is at rest at #(5 ,2 ,8 )# and constantly accelerates at a rate of #2/5# #ms^-2# as it moves to point B. If point B is at #(6 ,3 ,2 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.

The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use?

How much work does it take to raise a #2 kg # weight #9 m #?

What is the average speed, on #t in [0,5]#, of an object that is moving at #5 m/s# at #t=0# and accelerates at a rate of #a(t) =5-2t# on #t in [0,4]#?

What is the momentum of a 3-kg object moving at 5 m/s?

What is simple harmonic motion?

What is the average speed of an object that is still at #t=0# and accelerates at a rate of #a(t) = t/4+1# from #t in [0, 6]#?

What is the dot product of #<8,-1,4># and #<9,1,5 >#?

An object has a mass of #6 kg#. The object's kinetic energy uniformly changes from #72 KJ# to # 120 KJ# over #t in [0, 3 s]#. What is the average speed of the object?

Why does a perpetual motion machine of the first kind violate the law of conservation of energy?

A stuntman jumps from the roof of a building to a safety net below. How far has the stuntman fallen after 1.6 seconds?

The electrons in a particle beam each have a kinetic energy of 1.60×10−17 J. What are the magnitude and direction of the electric ﬁeld that will stop these electrons in a distance of 10.0cm?

An object is moving with initial velocity of 20m/s. It must slow down to a stop in .33 seconds and travel 4m. Write a solution that applies a force to the object to satisfy the expected result.?

What is the relationship between quantum mechanics and computational chemistry?

What is the kinetic energy of a #6 kg# object moving at #4/3 m/s#?

(IMAGE ATTACHED) Where would maximum constructive interference occur and why?

A 5.7 diameter horizontal pipe gradually narrows to 3.6 cm. The the water flows through this pipe at certain rate, the gauge pressure in these two sections is 32.5 kPa and 24.0 kPa, respectively. What is the volume of rate of flow?

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

A force of 38 newtons is acting on an object making an angle of 55° with the horizontal. What is the value component of the force acting along the y-axis?