# 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 #8 kg# is lying still on a surface and is compressing a horizontal spring by #5/6 m#. If the spring's constant is #1 (kg)/s^2#, what is the minimum value of the surface's coefficient of static friction?

A projectile is shot at a velocity of # 8 m/s# and an angle of #pi/6 #. What is the projectile's peak height?

How much work does it take to raise a #5 kg # weight #23 m #?

How can I make a carbon atom model?

An object with a mass of # 3 kg# is lying still on a surface and is compressing a horizontal spring by #80 c m#. If the spring's constant is # 4 (kg)/s^2#, what is the minimum value of the surface's coefficient of static friction?

An object with a mass of #4 kg# is acted on by two forces. The first is #F_1= < -1 N , 8 N># and the second is #F_2 = < -2 N, 5 N>#. What is the object's rate and direction of acceleration?

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?

A handball of mass 45 grams strikes a hard wall perpendicularly with an initial speed of 46m/s. The handball is in contact with the wall for 0.078 seconds, and then rebounds straight back with a speed of 39m/s. What average force was applied to the ball?

Explain how force and energy change are related?

What is the moment of inertia of a pendulum with a mass of #3 kg# that is #10 m# from the pivot?

How does Newton's third law apply to soccer?

A charge of #3 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?

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 #5/4 Hz# to #1/8 Hz#, by how much will the centripetal force applied by the tracks change by?

What is the force, in terms of Coulomb's constant, between two electrical charges of #-6 C# and #-16 C# that are #9 m # apart?

An object with a mass of #2 kg# is hanging from an axle with a radius of #3 m#. If the wheel attached to the axle has a radius of #3 m#, how much force must be applied to the wheel to keep the object from falling?

How can I make a calcium atom model?

If #15 L# of a gas at room temperature exerts a pressure of #5 kPa# on its container, what pressure will the gas exert if the container's volume changes to #12 L#?

An object with a mass of # 3 # #kg# is lying on a surface and is compressing a horizontal spring by #10 # #cm#. If the spring's constant is # 9# #kgs^-2#, what is the minimum value of the surface's coefficient of static friction?

If an object is moving at #8 m/s# and accelerates to #32 m/s# over 6 seconds, what was the object's rate of acceleration?

An object with a mass of #2 kg# is acted on by two forces. The first is #F_1= < 3 N , 5 N># and the second is #F_2 = < 7 N, -6 N>#. What is the object's rate and direction of acceleration?