Determine the most probable interaction for the following: a. 30 kev photon on calcium b. 100 kev photon on iodine c. 300 kev photon on water d. 10 Mev photon on lead

please rephrase/ rewrite this paragraph and you can add your own ideas

''Power plants all across the country are connected to each other through the electrical system. These power stations are responsible for generating electricity for many homes and buildings which are all interconnected through the network of wires we refer to the electrical grid. The methods in use for generating electricity varies with location or power station preference but, then main two ways are fossil fuels and gas. Other methods include nuclear power, hydroelectric generations, wind turbines, magnetic coils and more recently solar power. One way to look at electricity in cities is as one large body of water spilling into small pond. The network of ponds is actually a continent sized network of high voltage power lines and the houses, businesses, and factories get electricity from that grid. Until recently, electric energy could not be stored in the grid. The pond analogy also works at it suggests that water flow one direction. The electric current in the grid is alternating current, meaning it rapidly switches directions. However, the overall power itself flows from plants to house the same way water would flow from a stream into a small ponds. The large stream contributes to the one network of ponds, and all houses draw from the same network. This is how it works with power plants, the electric grid, and the houses using electricity. The electrical charge goes through high voltage transmission lines that stretch across the country. The voltage is lowered so it can be sent onto smaller power lines. It travels through distribution lines to neighborhoods, where smaller pole top transformers reduce the voltage again to make the power safe to use in our homes. There are also transformers at work on the other end. Their job is to drop the voltage back down to safer and more usable levels. A meter is used to measure how much each family uses. The electricity goes to service panel in your basement or garage, where breakers or fuses protect the wires inside your house from being overload. The electricity travels through wires inside the walls to the outlets and switches all over your house.''

upload your work as picture. Thank you so much

Calculate the temperature of a planet. A star has a surface temperature of 4000K and a radius of R = 8 × 108 m It has a rocky, airless planet orbiting it at a distance of 1.0×1011 meters. The planet has a radius of 5.0 × 106 m. We will estimate 1 for all objects. (a) What is the total power output of the star?

(b) What is the power incident on each square meter at distance to the planet (i.e. on an imaginary sphere).

(c) How much power is absorbed by the planet? (Assume the planet is black. Use the fact that the planet looks like a disk.)

(d) In equilibrium, Pin = Pout. How much power does the planet radiate per square meter of surface area of the planet?

(e) What is the temperature of the planet? (Should humans try to live there?)

Examples, please Paired design with repeated measures Paired design with matched pairs

Very detailed explanation on how a battery operates. The theory in the internal resistance of batteries, how charge is created, EMF, Electrochemical reaction in batteries, etc.

Suppose the electric field between the electric plates in the mass spectrometer of Fig. 20-38 is 2.38 ? 104 V/m and the magnetic fields B = B' = 0.66 T. The source contains carbon isotopes of mass numbers 12, 13, and 14 from a long-dead piece of a tree. (To estimate atomic masses, multiply by 1.67 ? 10-27 kg.)

A) How far apart are the lines formed by the singly charged ions of each type on the photographic film?
mm
(b) What if the ions were doubly charged?
mm

What is the phenomenon of differential negative resistance (negative differential resistance) and how can it be used in electronic devices? Please explain it in two or three paragraphs

A solid, uniform cylinder with mass 8.25 kg and diameter 10.0 cm is spinning with angular velocity 245 rpm on a thin, frictionless axle that passes along the cylinder axis. You design a simple friction-brake to stop the cylinder by pressing the brake against the outer rim with a normal force. The coefficient of kinetic friction between the brake and rim is 0.344.

Pose a situation (only one) problematic of real life, where you need mechanical physics to solve it. Situations similar to those we have been working on in the previous activities

The problem posed must contain the following topics, without being limited to this list:

1. Conservation of Mechanical Energy

2. Conservation of the linear or two-dimensional Moment.

3. Conservation of the angular Moment.

Rubric to evaluate problem-based learning activities PROBLEM-BASED

It shows a real situation, original and with a lot of creativity.

It shows a detailed design of the situation, where it includes all the physical variables contemplated.       

The problem situation includes issues of Conservation of mechanical energy, conservation of momentum and conservation of angular momentum.       

Shows the calculations evidencing the issues requested for the problem.

A 150-kg satellite is in circular orbit of radius 7.3 Mm around Earth. Determine:(a) potential, kinetic, and total mechanical energies.(b) the orbital speed.(c) the escape velocity from this altitude.

Imagine that at some point during the Ice Age a boulder with a mass of 380kg rolls off a cliff and onto a smooth (approximately frictionless) glacier so that just before it hits the glacier its

̂
velocity is ??? = (68m/s)î + (52m/s)k where the z-axis is the positive vertical direction

(perpendicular to the surface of the earth) and the x-axis is parallel to the surface of the earth.

̂1. (a) (4 points) What is this boulder’s initial momentum (just before it hits the glacier) in î, ĵ, k

notation?

̂
(b) (6 points) What is its momentum just after it hits the glacier in î, ĵ, k notation? How do you

know (think about and discuss force directions and conservation of momentum in component form)?

Which one has a larger final entropy, reversible isothermal process or reversible adiabatic process when expanding to the same final volume for an ideal gas?

What do you assume the entropy S for a perfect crystal when T = 0?

Is the S(0) still zero if the crystal is not perfect? Why?

How to calculate dS when under the constant pressure and c_p is given?

How to calculate the entropy of H₂O at 500 K?

How to calculate the entropy change for a chemical reaction if you can find the S for each chemical?

Spectrometer Lab

Summarize this experiment from purpose to procedure to analysis. Include all important theoretical equations.
{¶ ≤ 100 words}

Body A in the figure weighs 97 N, and body B weighs 80 N. The coefficients of friction between A and the incline are μs = 0.57 and μk = 0.23. Angle θ is 28°. Let the positive direction of an x axis be up the incline. What is the acceleration of A if A is initially (a) at rest, (b) moving up the incline, and (c) moving down the incline?

In our review of fluids this week, particularly of fluids in motion, we have come across 3 important rules that govern that motion: the continuity equation, Bernoulli's principle, and Poiseuille's principle.

Please give an example for each one. Also, can you find/see the importance of these rules, fluid motion in general, in your field of study?

Please no handwritten or picture responses - only typed replies