The amount of spreading of light after it goes through an opening

a. would be larger if the opening got narrower, just as would happen to sound.

b. the amount of interference after two slits that are as wide as this opening.

c. predicted by the law of refraction applied to openings instead of materials.

d. is independent of the width of the opening and dependent on the wavelength of light.

e. is independent of the wavelength of light and depedent on the width of the opening.

The inability to distinguish two distant light sources looked at through a circular aperture is due to

a. the diffraction pattern of light going past the edges of the circular aperture.

b. a well-known flaw in the psychological perception of distant light.

c. the multiple refractions the two light rays experience on their path to the observer.

d. the excessive nearsightedness of the observer looking through the aperture.

e. the destructive interference of the two light waves before they reach the aperture.

How does optical tweezer relate to force and flow?

please i need specific answer for each part not from google and no handwritten.

Partitions

Show that the number of partitions of an integer n into summands of even size is equal to the number of partitions into summands such that each summand occurs an even number of times.

A mirror creates an image that has a height of 2.50 cm that is behind the mirror and 167 cm from the object.The image was created from a 5.00 cm tall object. What is the focal length of the mirror?

A non-conducting spherical shell of inner radius R1 and outer radius R2 contains a uniform volume charge density p through the shell. Use Gauss's Law to derive an equation for the magnitude of the electric field at the following radial distances r from the center of the sphere. Your answer should be in terms of p,R1,R2,r Eo, and pi.

a). r < R1

b.) R1 <r<2

c.) r>R2

given a diagnostic radiograph, describe how the exposure technique would be adjusted for individual changes in mAs or exposure time, kVp, grid ratio, beam collimation, SID, film-screen RS, and patient thickness

What is the specific formula for Air Quality Index (AQI)? and how is it calculated ?

I want to know specifically about it and is there anyone who is expert in aerosol physics. i am doing my thesis in aerosol physics so i need to take some lessons on particular topics.

thank you in advance.

An electric eel generates electric currents through its highly specialized Hunter's organ, in which thousands of disk-shaped cells called electrocytes are lined up in series, very much in the same way batteries are lined up inside a flashlight. When activated, each electrocyte can maintain a potential difference of about 150 mV at a current of 1 A for about 2.0 ms. Suppose a grown electric eel has 3.50 ✕ 103 electrocytes and can deliver up to 300 shocks in rapid series over about 1 s.

a)What maximum electrical power can an electric eel generate?

b)Approximately how much energy does it release in two shocks?

c)How high would a mass of 3 kg have to be lifted so that its gravitational potential energy equals the energy released in 300 such shocks?

I want you guys to rewrite this lab procedure, and it is fine if it was shorter than this.

An air track was fitted with two photocell bridges, one on each side of the collision region. Each bridge was operating in a gate mode timer that allows the collection of time intervals before and after collision. To ensure that friction and gravity have minimal effects, the track was leveled. Before starting the experiment, we ensured that loss in velocity was no greater than two percent in either direction. To check this, we sent one glider in one direction and noted the time to cross each photocell placed one meter apart. The difference between the two times divided by the time to cross the first photocell was the fraction of momentum that was lost due to friction and gained or lost due to gravity. The track was readjusted accordingly and the check was repeated in the other direction.

The first step in starting the experiment was measuring the masses of the two gliders (i.e. the heavy glider and the light glider). The masses of the gliders were made “heavy” or “light” by adding trimming weights. Then, a series of four collisions (each repeated three times) were conducted

“H” indicates heavy glider, “L” indicates light glider, “Off” indicates that the collision was made elastic by facing the bumpers toward one another, and “On” indicates that the collision was made inelastic by the mounting the “sticky bumpers” on each end (i.e. pin and putty attachments).

Using the memory mode of the photoelectric timers, we were able to collect times for both instances (before and after collision) that that glider past the photobridges. The first data point was our first time point and the second data point was the total of the first and second time point. Therefore, to get the second time, we had to subtract the first time point from the second data point. These times were then used to caluculate the velocities and subsequently the momentum and kinetic energy of both gliders.

Why is the GM detector not capable of discriminating between different forms of radiation?

Remarks It's interesting that the final result depends only on the coefficient of static friction. Notice also how similar Equations (1) and (2) are to the equations developed in previous problems. Recognizing such patterns is key to solving problems successfully.

Question A larger static friction constant would result in a: (Select all that apply.)

a) smaller component of gravitational force along the ramp at the maximum angle.

b) larger maximum angle.

c)smaller maximum angle.

d)larger component of gravitational force along the ramp at the maximum angle.

e)larger component of normal force at the maximum angle.

PRACTICE IT Use the worked example above to help you solve this problem. Suppose a block with mass 2.80 kg is resting on a ramp. If the coefficient of static friction between the block and the ramp is 0.420, what maximum angle can the ramp make with the horizontal before the block starts to slip down?

EXERCISE Use the values from PRACTICE IT to help you work this exercise. The ramp in the figure is roughed up and the experiment repeated.

(a) What is the new coefficient of static friction if the maximum angle turns out to be 38.0°?

(b) Find the maximum static friction force that acts on the block.
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Write a 5-10 sentence conclusion describing the changes in temperature for a solid, liquid, and gas affect the amount of energy and types of motion that each phase has and the randomness of motion. Use some of the observations to justify your conclusion.