Imagine an isolated, 10-liter cylinder containing one mole of ideal gas held in the left five liters of the cylinder by a piston, initially locked in place. The right half of the cylinder is evacuated; the entire system is maintained at constant temperature. When the piston is freed to move frictionlessly, we could track the motion of the piston and the volume in 1-liter increments. Calculate the change in entropy (in J mol^-1 K^-1) of the gas upon expansion after each of the five 1-liter increments. Demonstrate that the total entropy is indeed maximized when the expansion is complete. Make a table.

In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80 m/s2 . Ignore air resistance.

A flea jumps straight up to a maximum height of 0.450 m . What is its initial velocity v0 as it leaves the ground?

How long is the flea in the air from the time it jumps to the time it hits the ground?

In a physics laboratory experiment, a coil with 250 turns enclosing an area of 11.8cm2 is rotated in a time interval of 3.00

Face west and set the time for February 1, 2012 at 9 p.m. Observe the position of Venus at the beginning of each month through June 1, 2012. Explain where you would expect to find Venus from June1, 2012 through July 1, 2012. Why would you not be able to see the planet during June?
(Check your answer by facing east and by setting the time for 5:30 a.m.)

An oscillating LC circuit is set up with an inductor with L = 60 mH and a capacitor with C = 4.0 µF with a maximum voltage of 3.0 V. Initially, at t = 0, the capacitor is fully charged.

(a) What is the maximum value of the current through the circuit?

(b) How long after t = 0 will it take before the current in the circuit is at a maximum for the first time?

(c) What is the maximum rate of change of the current in the circuit?

(d) What is the total energy stored in the circuit?

Two identical diverging lenses are separated by 17 cm. The focal length of each lens is -8.0 cm. An object is located 4.0 cm to the left of the lens that is on the left. Determine the final image distance relative to the lens on the right.

A sound wave generated by a source of frequency 440 Hz is moving through 25 ^oC air. The sound wave strikes a solid block of steel and propagates into the steel. What is the wavelength of the sound wave inside the steel. The density of steel is 7.85 g/cm³ and the bulk modulus of steel is 1.6 x 10¹¹ N/m² . Select a choice

2.5 Use the de Broglie relation λ=h/p to find the wavelength of electrons with kinetic energy equal to 550 eV. Indicate if relativistic or classical calculations are required.

2.3 Determine the energy of an electron and a photon if each has momentum equal to 1.071 x 10-21 kgm/s. Provide answer with 4 significant figures.ual to 550 eV. Indicate if relativistic or classical calculations are required.

An L-R-C series circuit consists of a 60.0 Ω resistor, a 10.0 μF capacitor, a 3.60 mH inductor, and an ac voltage source of voltage amplitude 60.0 V operating at 1450 Hz .

a.) Find the current amplitude across the inductor, the resistor, and the capacitor.

b.) Find the voltage amplitudes across the inductor, the resistor, and the capacitor.

c.) Why can the voltage amplitudes add up to more than 60.0 V ?

d.) If the frequency is now doubled, but nothing else is changed, which of the quantities in part A and B will change?

- only current amplitude will change

-only voltage amplitude across the inductor and capacitor will change

-only voltage amplitude across the inductor will change

-current amplitude and voltage across the any circuit element will change

e.) Find new current amplitude across the inductor, the resistor, and the capacitor.

f.) Find new voltage amplitudes across the inductor, the resistor, and the capacitor.

1) Conceptual differences and differences in equations between the electric dipole and magnetic dipole.

Add as much information as possible please.

Does the acceleration vector change at all throughout the projectile’s flight? Why or why not?

Compare two complementary angles such as 30? and 60?. What is the same? What is different?

How does changing the initial velocity affect the projectile’s motion?

How does the time spent in the air depend on the launch angle?

using energy: a mass, m1 = 5kg, resting on a frictionless ramp is connected to a cable that passes over a pulley which is then attached to a second hanging mass, m2 = 2. see diagram. if the blocks are released from rest, then how far will the have moved when their velocities are 4 m/s

You wish to buy a new freezer for your basement. The primary use of the freezer will be to prepare ice for family parties. You have a very large family, with grandparents, parents, sisters, brothers, uncles, aunts, cousins, nephews, nieces, and grandchildren. As a result, family birthday parties are held every couple of weeks, and you need lots of ice for drinks. You want the freezer to convert 10.1 kg of water at 23.0°C to 10.1 kg of ice at

−9.4°C

in 2.00 h. But, in order to keep your electric bill down, you want the power rating of the freezer to stay below 100 W. From these requirements, you determine the minimum COP of the freezer that will satisfy your needs. (Consider that the specific heat of water is 4,186 J/(kg · °C), the specific heat of ice is 2,090 J/(kg · °C), the latent heat of fusion of water is 3.33 ✕ 10⁵ J/kg, and the latent heat of vaporization of water is 2.26 ✕ 10⁶ J/kg.)

With the aid of a diagram, write a short account of the image formation process in the human eye. Include notes on the correction of common conditions (myopia, hypermetropia and presbyopia) using suitable lenses

1. What is a given= 0.215 [ms^-2] and diameter of disk with uniform mass distribution= 19.5 [cm].

theta= ?

2. Using information found in previous question, if the dropping mass is 195 [g], then what is T?

T= ? [Nm]