# Sebastian Acosta

Physics teacher | Verified Expert

I hold a degree in Physics from Clarkson University, where I honed my passion for unraveling the mysteries of the universe. With a penchant for inquiry and discovery, I thrive on guiding students through the complexities of physics. My journey from Clarkson has equipped me with a deep understanding of theoretical concepts and practical applications. From classical mechanics to quantum theory, I am committed to fostering a deeper appreciation for the wonders of physics. With tailored approaches and engaging strategies, I aim to inspire curiosity and instill confidence in every student I teach. Let's explore the universe together.

## Questions

A force field is described by #<F_x,F_y,F_z> = < xy , 2z-y^2 +x, 2y -zx > #. Is this force field conservative?

If a projectile is shot at an angle of #pi/2# and at a velocity of #37 m/s#, when will it reach its maximum height??

A 4.00 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.600 m by a large spring bumper at the end of its track. What is the force constant k of the spring (in N/m)?

If #3/7 L# of a gas at room temperature exerts a pressure of #9 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5/9 L#?

If a current of #8 A# passing through a circuit generates #56 W# of power, what is the resistance of the circuit?

An object travels North at #2 "m/s"# for #8 s# and then travels South at #5 "m/s"# for # 6 s#. What are the object's average speed and velocity?

Tameron is driving #540# miles to college. If he drives at an average rate of #45# miles per hour, how many hours will it take to get #3/4# of the way there?

If #18 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#?

A ball with a mass of #7 kg# moving at #7 m/s# hits a still ball with a mass of #8 kg#. If the first ball stops moving, how fast is the second ball moving?

If a rocket with a mass of #3500 tons # vertically accelerates at a rate of # 9/2 m/s^2#, how much power will the rocket have to exert to maintain its acceleration at 15 seconds?

How do you use Coulomb's law?

Is displacement directly proportional to velocity?

Are these three formulas correct?

How do you calculate the absolute index of refraction?

A projectile is shot at an angle of #pi/8 # and a velocity of # 1 m/s#. How far away will the projectile land?

How does newton's third law apply to balloon cars?

In a series RC circuit, does the phase difference between the capacitor and the resistor voltages depend on the values of R and C?

What property of waves have a reciprocal relationship with its frequency?

The gas inside of a container exerts #24 Pa# of pressure and is at a temperature of #180 ^o K#. If the pressure in the container changes to #40 Pa# with no change in the container's volume, what is the new temperature of the gas?

A soccer ball leaves a cliff 20.2 m above the valley floor, at an angle of 10 degrees above the horizontal. The ball hits the valley floor 3.0 sec later. What is the initial velocity of the ball? What maximum height above the cliff did the ball reach?