Summarize Thermodynamics and everything you need to know/ important in a brief summary. (For physics)

The chains and sheets of galaxies and voids between them observed in the large scale structure of the universe were once thought to be contradictory with the big bang theory. Why are these observations now considered to be evidence that supports the big bang theory.

3.Consider a series RLC circuit.
a) When the capacitor is charged and the circuit is closed, find the condition for the current to be oscillatory.
b) When the circuit is connected to an AC source V = ?0 cos??, find the voltage across the inductor and the
angular frequency at which the voltage across the inductor is maximized.

Assuming a composition entirely of atomic hydrogen, and a density of
1.67x10^-19 kg/m³, use the formulae for Jeans Mass and Radius (where
appropriate), to determine which of the following gas clouds will collapse:
Cloud A: Mass = 10,000 M_sun, T = 120K
Cloud B: Mass = 7,000 M_sun, T = 80K
Cloud C: Radius = 8 pc T = 60K

A 200-g piece of ice at 0ºC is placed in 0.200 L of water at 25ºC. The system is insulated from its surroundings.

1. What is the final temperature of the system?
2. How much of the ice melts?

5: A skier, m = 65 kg, glides on a perfect hill, 10 m high, no friction. However, at the bottom is a spring, k = 1500 N/m , system to stop the skier. A silly technique I will grant you. The spring is not perfect, it loses 800 J of energy every time the spring fully compresses or extends. Now we will have to assume the spring never extends past its equilibrium position. A: What is the speed of the skier when they hit the spring the first time down the ramp? B: How much does the spring compress the first time the skier hits it? C: The skier will be pushed back up the hill so the process will continue. How many cycles (n) will occur until the skier - eventually stops?

Problem: Two blocks for masses m1 and m2 are stacked on top of each other and placed on a frictionless, horizontal surface. The surfaces between two blocks is rough and has a coeff of static friction, us. A horiz push of magnitude, F, directed to the right is applied on the bottom block.

A. Derive an expression for the maximum horizontal force, F, that can be applied on the bottom block, m1, before the top block m2, begins to slip.

B. Calculate F in Newtons (m1=5 kg) (m2=2 kg) (us=0.47)

C. If the mass of the top block is increased, what happens to the maximum value of F?

In an experiment, 300 g of aluminum (specific heat of 900 J/kg*K) at 120 Celsius is mixed with 60 g of water at 20 Celsius, with the mixture thermally isolated. You will need to look up the specific heat of water. (a) What is the equilibrium temperature? (b) What is the entropy change for the aluminum block? (c) What is the entropy change for the water? (d) What is the entropy change for the aluminum-water system?

A capacitor C with plate separation d is charged with ±Q on the two plates. It is then connected (at time t = 0) to a resistor R and discharged.

a. What is the time dependence of the charge?

b. What is the power radiated at time t?

c. What is the total energy radiated away?

d. What fraction of the total energy is radiated away?

e. Suppose C = 1 nF,R = 1000 Ω, and d =0 .1 mm. What is the numerical value of the fraction of energy radiated.

Only d - e

What are the observations which cause astronomers to conclude that galaxies change over time.

A straight, vertical wire carries a current of 1.27 A downward in a region between the poles of a large superconducting electromagnet, where the magnetic field has a magnitude of B = 0.567 T and is horizontal.

Part A

What is the magnitude of the magnetic force on a section of the wire with a length of 1.00 cm that is in this uniform magnetic field, if the magnetic field direction is east? (Unit N)

Part B

What is the direction of the magnetic force on a section of the wire with a length of 1.00 that is in this uniform magnetic field, if the magnetic field direction is east?

How would you determine the number of proton-proton pairs, the number of neutron-neutron pairs, and the number of neutron-neutron pairs in an atom given its atomic number and mass number? Hence show that Carbon has 15 proton-proton pairs and 10 neutron-neutron pairs.

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200- kg puck has a speed of 1.00 m/s at an angle of θ = 53.0° to the positive x axis. (a) Determine the velocity of the 0.300-kg puck after the collision. (b) Find the fraction of kinetic energy lost in the collision. (4 points)