PLEASE TYPE YOUR ANSWER

Pick and explain in detail one of the following learning goals from Chapter 3 (Motion in Two or Three Dimensions). Additionally, and real life application of the topic you are explaining. (This video should go along with your explanation, and make sure you do not post the same video as someone else)

3.2 (A) - How does one find the vector acceleration of a particle, and why can a particle have acceleration even if its speed is constant?

What beat frequency would be heard by a tuba player in a marching band, of a note with a frequency of 4.50E2 Hz and the notes echo off a stationary building; if he is walking towards the building at a speed of 1.56 m/s, on a hot day with a temperature of 34.3 degC?

A 0.05kg bouncy ball is dropped from height 9m and loses 20% of its energy upon impact each time it bounces. Assume that there is no air resistance.

a) What is the kinetic energy of the ball before the impact?

b) What is the kinetic energy of the ball after the first bounce?

c) What is the kinetic energy of the ball after the second bounce?

d) How high does the ball bounces after the second impact?

e) How many bounces does it take before the ball bounces to a height approximately half of its initial height?

f) Fill in the energy bar diagram for (the system consists of the ball and the Earth):

You look at yourself in a shiny 9.6-cm-diameter Christmas tree ball. If your face is 26.0 cm away from the ball's front surface, where is your image? Follow the sign conventions.

IP Two strings that are fixed at each end are identical, except that one is 0.600 cm longer than the other. Waves on these strings propagate with a speed of 31.2 m/s , and the fundamental frequency of the shorter string is 212 Hz .

Part A

What beat frequency is produced if each string is vibrating with its fundamental frequency?

Part B

Does the beat frequency in part (a) increase or decrease if the longer string is increased in length?

Part C

Repeat part (a), assuming that the longer string is 0.781 cm longer than the shorter string.

Draw the figure for memory segments with 8086 microprocessor software model. Explain the logical address structure used for each segment (Explain which registers are used in logical address presentation of each segment; segment address : offset address).

How would you solve the problem of malnutrition using science (not pseudoscience) and technology?

A thin film of soap with n = 1.35 hanging in the air reflects dominantly red light with ? = 620 nm. What is the minimum thickness of the film?

Now this film is on a sheet of glass, with n = 1.46. What is the wavelength of the light in air that will now be predominantly reflected?

A snoke stack with an effective height of 45 m emits SO₂ at a rate of 8 kg hr ^-1. What is the contribution of this stack to ground-level SO₂ concentrations at a school yard 950 m downwind, if wind speed is 1.5 m s^-1 on a sunny winter day? Assuming unlimited mixing height, and the atmosphere stability is unstable?

TLD Response & Annealing.
(i) Explain the physics of superlinearity of TLD detectors. For which absorbed dose is
superlinearity correction essential?
(ii) Based on the mathematical expression for the glow curve, explain the changing of
the position of the glow peaks vs heating rate

A small industrial furnace emits 0.35 m³ s^-1 of exhaust gases at a temperature of 95 degrees Celsius. Outside air temperature is 25 degrees Celsius, and wind speed is 1.5 m s^-1. The stack is 40 m tall, with a diameter of 120 cm. What is the plume height at the edge of the property 50 m downwind?

A neutron star and a white dwarf have been found orbiting each other with a period of 26 minutes. If their masses are typical, what is their average separation? Compare the separation with the radius of the sun, 7 ✕ 10⁵ km. (Hints: Use the version of Kepler's third law for binary stars,

M_A + M_B =

;

make sure you express quantities in units of AU, solar masses, and years. Assume the mass of the neutron star is 2.0 solar masses and the mass of the white dwarf is 0.7 solar masses.)

Ans:
______________ solar radius

Describe what would result in the following two examples. Describe the resulting waveforms and spectra for each example:

What wave results by adding the following three sine waves that are in phase:

A.120 Hz, peak amplitude 5 milliVolts (mV)

B. 20 Hz, peak amplitude 8 milliVolts (mV)

C.120 Hz, peak amplitude 2 milliVolts (mV)

2. Adding together the following three sine waves:

A.120 Hz

B. 240 Hz

C.360 Hz

A flexible balloon contains 0.335 mol of an unknown polyatomic gas. Initially the balloon containing the gas has a volume of 6700 cm3 and a temperature of 25.0 ∘C The gas first expands isobarically until the volume doubles. Then it expands adiabatically until the temperature returns to its initial value. Assume that the gas may be treated as an ideal gas with Cp=33.26J/mol⋅K and γ=4/3.

a.) What is the total heat Q supplied to the gas in the process?

b.) What is the total change in the internal energy ΔU of the gas?

c.) What is the total work W done by the gas?

d.) What is the final volume V?

The production of sound during speech or singing is a complicated process. Let's concentrate on the mouth. A typical depth for the human mouth is about 7.4 cm , although this number can vary. (Check it against your own mouth.). We can model the mouth as an organ pipe that is open at the back of the throat.

a) What are the wavelengths of the first four harmonics you can produce if your mouth is open?

Express your answers in centimeters separated by commas.

b) What are the frequencies of the first four harmonics you can produce if your mouth is open? Use 351 m/sm/s for the speed of sound.

Express your answer in hertz separated by commas.

c) What are the wavelengths of the first four harmonics you can produce if your mouth is closed?

Express your answers in centimeters separated by commas.

d) What are the frequencies of the first four harmonics you can produce if your mouth is closed? Use 351 m/sm/s for the speed of sound.

Express your answer in hertz separated by commas.