With the use of diagrams, explain why the slit width of a prism wavelength selector must be varied to provide constant effective bandwidths (specific wavelengths) but a constant slit width instead can be used to provide constant bandwidth with a grating monochromator?

calculate the frequency in hertz, the wave number in cm-1 Calculate the frequency in hertz, the wave number in cm!, the energy in joules, and the energy associated with the 317 nm wavelength energy source achieved from a He-Ne laser and used in the detection of Quinine (a chiral compound used to treat malaria and babesiosis).

A cart starts from rest at the top of a roller coaster that is 40 meters high. It descends down the first hill all the way to ground level before heading into a vertical circular loop with diameter 20 meters. What is the minimal H(height of the initial hill) needed in order for the cart to just barely make it over the top of the loop?

1. Describe the pendulum’s physical location when the position is zero? When it has the largest positive value?

2. Describe the pendulum’s physical location when the velocity is zero? When is has the largest positive value? Explain.

3. Relationship between length and period?

4. Relationship between amplitude and period?

Barium has a work function of 2.48 eV. What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 420 nm?
eV
What is their speed?
m/s

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 17000 km and its rotation period to be 22.8 hours. You have previously determined that the planet orbits 240000000 km from its star with a period of 500 Earth days. Once on the surface you find that the free-fall acceleration is 11.8 m/s22. What is the mass of the planet? What is the mass of the star?

Sketch the wave-function of the ground state of a particle of mass m which is con- fined in one dimension within a square potential well of infinite height, centred at x = 0 and of width a between x = ?a/2 and x = a/2.

What type of function is that?

If the infinite potential well is replaced by a potential well of finite height, sketch the new ground state wave-function. Explain qualitatively how the ground state energy changes in going to the finite well.

A rocket is launched straight up. It contains two stages (Stage 1 and Stage 2) of solid rocket fuel that are designed to burn for 10.0 and 5.0 s, respectively, with no time interval between them. In Stage 1, the rocket fuel provides a net upward acceleration of 18 m/s2. In Stage 2, the net upward acceleration is 13 m/s2. Neglecting air resistance, calculate the maximum altitude above the surface of Earth of the payload and the time required for it to return back to the surface.

maximum altitude m

time required s

A 26 g ice cube at -15.0oC is placed in 204 g of water at 48.0oC. Find the final temperature of the system when equilibrium is reached. Ignore the heat capacity of the container and assume this is in a calorimeter, i.e. the system is thermally insulated from the surroundings. Give your answer in oC with 3 significant figures.

Specific heat of ice: 2.090 J/g K

Specific heat of water: 4.186 J/g K
Latent heat of fusion for water: 333 J/g

A speeding motorist zooms through a 50 km/h zone at 75 km/h (21 m/s) without noticing a stationary police car. The police officer immediatley heads after the speeder, accelerating at 2.5m/s^2. When the officer catches up to the speeder, how far down the raod are they, and how fast is the police car going?

I know you use the equations x= x_0+ v_0t+ .5at^2 and v= V_0 + at... But I want to know why we use these equations and also how does my book derive that when you set the 1st equation for the police officer and the speeding motorcycle equal it comes out to be

x_s= 2v_s0^2/a_p

THank you

Please read the article below (copy into your address bar, in case you dont undersatnd how internet works):

https://physicsinfootballgrade11bcss.weebly.com/energy-work-power.html

And provide a 250 word summary of the article and how it applies to the concepts of kinetic energy, work, and power. Also provide a description of how to figure kinetic energy, work, and power. If you can provide an additional resource. THIS HAS TO CONTAIN A SUMMARY OF THE ARTICLE AND BE RELATED TO THE ARTICLE OR I WILL NOT THUMBS UP!  If the 250 word summary meets all requirements I will thumbs up promptly.

A 2 cm high object is positioned 5 cm to the right of a converging lens (f= +3 cm). A diverging lens (f= -15 cm) is located 10 cm to the left of the converging lens. Determine its location and if the final image is inverted and virtual. Show ray tracing diagram to prove your answer.

Imagine you fill an insulated cup almost full with chopped or crushed ice, and measure the temperature after a minute or two, once it’s all come to thermal equilibrium. Since this ice is frozen water, the temperature should be at 0°C or not more than a couple of degrees below. Then, imagine you add a bunch of salt and stir it around.

What do you think the lowest temperature you can attain will be? Why? What happens to the amount of liquid present if you keep stirring and adding salt? How can we understand this phenomenon in terms of thermal and bond energy systems?

Develop an explanation for the changes you would observe in this physical system (decrease in temperature and change of phase) in terms of the Energy-Interaction Model. Preview the document

A photon with an initial wavelength of 1.070

Find the difference in the apparent acceleration of gravity at the equator and the poles, assuming the earth is spherical.

how do newton's three law of motion apply to an automobile? please include friction in your discussion.