# 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

An object with a mass of #2 kg# is revolving around a point at a distance of #5 m#. If the object is revolving at a rate of #5 Hz#, what is the centripetal force on the object?

A model train with a mass of #5 kg# is moving along a track at #12 (cm)/s#. If the curvature of the track changes from a radius of #32 cm# to #24 cm#, by how much must the centripetal force applied by the tracks change?

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

What is the force, in terms of Coulomb's constant, between two electrical charges of #-2 C# and #-3 C# that are #6 m # apart?

A charge of #7 C# is at the origin. How much energy would be applied to or released from a # 5 C# charge if it is moved from # (6, 18 ) # to #(-5 ,-2 ) #?

What happens to the total resistance when a fourth resistor is connected in a series with three resistors?

A projectile is shot from the ground at a velocity of #14 m/s# and at an angle of #(7pi)/12#. How long will it take for the projectile to land?

what are the works of power which affect the mass?

How much work would it take to push a # 4 kg # weight up a # 5 m # plane that is at an incline of # pi / 4 #?

If #7/5 L# of a gas at room temperature exerts a pressure of #16 kPa# on its container, what pressure will the gas exert if the container's volume changes to #13/12 L#?

An object with a mass of #7 kg# is revolving around a point at a distance of #4 m#. If the object is making revolutions at a frequency of #7 Hz#, what is the centripetal force acting on the object?

If an object with uniform acceleration (or deceleration) has a speed of #6 m/s# at #t=0# and moves a total of 4 m by #t=3#, what was the object's rate of acceleration?

How do you simplify #\frac{at^{2}}{2}+ut#?

A spring with a constant of #3 (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 #8 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?

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?

What are some examples of capacitors used in circuits?

The gas inside of a container exerts #5 Pa# of pressure and is at a temperature of #190 ^o K#. If the pressure in the container changes to #32 Pa# with no change in the container's volume, what is the new temperature of the gas?

An object travels North at #1 m/s# for #3 s# and then travels South at #12 m/s# for #7 s#. What are the object's average speed and velocity?

If a #2 kg# object is being constantly accelerated from #0m/s# to #15 m/s# over # 6s#, how much power is being applied at #t= 2 #?

A projectile is shot at an angle of #pi/4 # and a velocity of # 12 m/s#. How far away will the projectile land?