A 0.460-mol sample of an ideal diatomic gas at 404 kPa and 276 K expands quasi-statically until the pressure decreases to 168 kPa. Find the final temperature and volume of the gas, the work done by the gas, and the heat absorbed by the gas if the expansion is the following.

(a) isothermal

When you look through a fish tank at someone on the other side, you only see a reflection of the fish in the tank. However, the other person can see you clearly. Explain.

An object falls from a height h from rest. If it travels a fraction of the total height of 0.5833 in the last 1.00 s, find the time of its fall.

Find the height of its fall

1. If you had a meter to investigate the electric power system in your home, what voltage would you measure for the electricity coming into your home? What frequency is the power coming into your home? Do all devices in your home operate at this voltage and frequency? How do you know?

2. Appliances A, B, and C consume 250, 480 and 1450 watts of power, respectively. The system voltage is 120V, and the circuit breaker is rated at 15 amps. Which combinations of the three appliances can be on at the same time, and which combinations will trip the circuit breaker? What assumptions would you have to make? What equations and data would you use?

3. Look around your home at some common appliances - a toaster, fan, space heater, television, computer, etc. Which appliances would you predict draw a lot of current to operate? Which appliances would you predict take a lot of power to operate?

Extra credit project: if you would like to investigate this, there is a device called Kill-A-Watt that can measure current, voltage, and power when electrical devices are plugged into them. Measure 10-15 devices in your home and write a mini lab report describing your data and lessons learned by taking these measurements.

You have two carts, a force probe connected to a computer, a motion detector, and an assortment of objects of different masses. Design three experiments to test whether momentum is a conserved quantity. Describe carefully what data you will collect and how you will analyze the data.

is it possible to identify different types of quasars based on its color? please provide a refrence so i can read into it more

A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 36.0 cm. The spherical shell carries charge with a uniform density of -3.37 µC/m³. A proton moves in a circular orbit just outside the spherical shell. Calculate the speed of the proton.

Now, let

A crow is flying horizontally with a constant speed of 3.00 m/s when it releases a clam from its beak. The clam lands on the rocky beach 2.40s later. Consider the moment just before the clam lands. (Neglect air
resistance.)

A diffraction grating has 2605 lines per centimeter, and it produces a principal maximum at = 29.2°. The grating is used with light that contains all wavelengths between 410 and 660 nm. What are the two wavelengths of the incident light that could have produced this maximum? Give the longer wavelength as answer (a).

3. Refer to Ch 4, pg 132- 4 in BM. We are going to calculate the velocity of the Earth today (let’s say 7 Feb 2020) using the vis viva equation. Take a deep breath...

(a) Calculate the "mean anomaly" of the Earth M. This is the angle from perihelion to the position of Earth as if the Earth were in a circular orbit. You have to look up the perihelion of the Earth. See pg 34 in BM. This is just calculating a fraction of a circle. 1

A thin-walled metal spherical shell of radius a = 1.80 cm has a charge qa = 8.00×10-6C. Concentric with it is a thin-walled metal spherical shell of radius b = 5.20 cm and charge qb = 2.50×10-6 C.

Find the electric field at distance r = 0 cm from the common center. Tries 0/10

Find the electric field at distance r = 3.70 cm from the common center. Tries 0/10

Find the electric field at distance r = 8.90 cm from the common center. Tries 0/10

Discuss the criterion one would use to determine how the charges are distributed on the inner and outer surface of the shells. What is the charge on the outer surface of the outer shell?

An artillery shell is fired with an initial velocity of 300 m/s at 52.0° above the horizontal. To clear an avalanche, it explodes on a mountainside 47.5 s after firing. What are the x- and y-coordinates of the shell where it explodes, relative to its firing point?

I intend to start making visual observations, and I want to know more about the difference between using barlow lenses and one or two eyepieces and using a complete kit of eyepieces, both for planetary and deep space objects.