Why are the higher-order spectra more accurate than the first-order spectrum in determining wavelengths of light?

a Discuss the difference between the continuous spectrum obtained with a grating and one obtained with a prism. (b). Which color is deviated most in each case? Why?

Two pendulums have the same dimensions (length {L}) and total mass (m). Pendulum \texttip{A}{A} is a very small ball swinging at the end of a uniform massless bar. In pendulum \texttip{B}{B}, half the mass is in the ball and half is in the uniform bar.

A)Find the period of pendulum A for small oscillations.

B)Find the period of pendulum B for small oscillations.

C)Please be sure to include the specific calculations of the moment of inertia and the distance to the center of mass for pendulum B.

D) By what fraction is the period of one pendulum smaller than the other?

1. The fact that a trumpet and a saxaphone sound different when playing the same fundamental frequency is best explained by which concept listed below?

a. The Doppler Effect
b. Sound wave reflection
c. Beats
d. Timbre

2. A single-frequency air horn (f = 800 Hz) is sounded by a rider in a roller coaster moving toward you at 47 m/s as you stand next to the track. What frequency do you hear? Assume the speed of sound to be 340 m/s.

a. 928 Hz
b. 1004 Hz
c. 1109 Hz
d. 832 Hz

3. Using the same scenario as question #2, now assume that you are a rider on a second coaster moving toward the sender. You both have the same speed relative to the ground. You hear a frequency of 1207 Hz. What is the frequency of the sender's air-horn?

a. 752 Hz
b. 834 Hz
c. 888 Hz
d. 914 Hz

Picture water flow of four straws, short and fat, short and thin, long and fat, and long and thin.

Think about how water would flow through two configurations of these same four straws:

One version where the four straws are taped end-to-end to make one long straw

The other version where all four straws are taped together side by side, so you would suck water through all four at the same time

Which of these two configurations produces the lowest current? Which produces the highest? Why?

Two loudspeakers are located 2.53 m apart on an outdoor stage. A listener is 21.4 m from one and 22.2 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency f_min,1 that gives minimum signal (destructive interference) at the listener's location? By what number must f_min,1 be multiplied to get (b) the second lowest frequency f_min,2 that gives minimum signal and (c) the third lowest frequency f_min,3 that gives minimum signal? (d) What is the lowest frequency f_max,1that gives maximum signal (constructive interference) at the listener’s location? By what number must f_max,1 be multiplied to get (e) the second lowest frequency f_max,2 that gives maximum signal and (f) the third lowest frequency f_max,3 that gives maximum signal? (Take the speed of sound to be 343 m/s.)

Answers to 3 significant digits. No scientific notation. Provide units. Thank you!

What is crystal field effect? Please state that in terms of Px, Py, and Pz orbits. (Please briefly description)

A block with mass m =7.5 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.25 m. While at this equilibrium position, the mass is then given an initial push downward at v = 4.1 m/s. The block oscillates on the spring without friction.

After t = 0.3 s what is the speed of the block?

What is the magnitude of the maximum acceleration of the block?

At t = 0.3 s what is the magnitude of the net force on the block?

Where is the potential energy of the system the greatest?

At the highest point of the oscillation.

At the new equilibrium position of the oscillation.

At the lowest point of the oscillation.

A cube 23 cm on each side contains 3.7 g of helium at 20∘C. 1000 J of heat energy are transferred to this gas.

A) What is the final pressure if the process is at constant volume?

B)What is the final volume if the process is at constant pressure?

Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. The yellow disk is initially at rest and is struck by the orange disk moving with a speed of 5.60 m/s. After the collision, the orange disk moves along a direction that makes an angle of 36.0° with its initial direction of motion. The velocities of the two disks are perpendicular after the collision. Determine the final speed of each disk.

The average distance separating earth and the moon is 384,000 kg (center to center). What is the Net gravitational force exerted by the earth and the moon on a 2.75x10⁴ kg spaceship located half way between them (take the direction toward earth to be positive? if the spaceship falls toward earth starting from rest at a point where it is located 55,00km above the surface of the earth, what is its velocity at that point?

Short response: Most astronomical telescopes make use of spherical mirrors for their objectives.

What are some advantages for using these mirrors over a similar lens?

What issues may still plague the image formation by these mirrors?

Starting from rest, a 36.7-gram steel ball sinks into a vat of corn syrup. The thick syrup exerts a viscous drag force that is proportional to the ball\'s velocity:

Drag= -Cv

where C = 0.270 N·s/m is a constant related to the size and composition of the ball as well as the viscosity of the syrup. Find the rate at which gravitational energy is converted to thermal energy once the ball reaches terminal velocity. (in W)

For an object of given mass pushed against a vertical surface, and given a coefficient of static friction, calculate the horizontal force necessary to prevent vertical motion

A water pistol aimed horizontally projects a stream of water with an initial speed of 6.30 m/s. (a) How far does the water drop in moving 1.15 m horizontally? (b) How far does it travel before dropping a vertical distance of 2.20 cm?