posted 10 months ago

Draw a picture to help you visual the situation. Label it with important information, and state all of the given values in the question. [C 1]а.

b. What is the name of this phenomenon, and why does it occur? [C 2]

C.What is the frequency that the car is honking at? [A 4]

posted 10 months ago

posted 10 months ago

posted 10 months ago

Sketch the standing wave patterns for the 3rd harmonic. [2 C]

b. If the wavelength of 3rd harmonic is 1.00 m, then calculate the length of the tube, in cm. [T 2]

c. If the wave is traveling at a speed of 343 m/s, then what is the frequency of the 3rd harmonic? [T 2]

d. What is the frequency of the 6th harmonic? How does this frequency relate to the 3rd harmonic? [T 2]

posted 10 months ago

Draw a diagram of the waveform, labelling all the information given. [2 C]

What is the amplitude of the wave?

What is the period of the wave?

What is the wavelength of the wave? (show your thinking below)[2T]

posted 10 months ago

posted 10 months ago

i. Quarks (1 point)

ii. Gluons (1 point)

B. What forces are at work inside the nucleus of an atom? What keeps the nucleus together?

C. What makes a nucleus unstable? Which atoms tend to be unstable? (1 point)

D. What is lost in an atom as a result of radioactive decay? What equation relates this loss to energy produced? (1 point)

posted 10 months ago

B. Match each quantum number with what it defines about an electron's position or energy.

A. The first quantum number, n

B. The second quantum number, /

C. The third quantum number, m,

D. The fourth quantum number, m,

Defines the electron's orbital

Defines the electron's energy level

Defines the electron's spin

Defines the electron's sublevel

C. Identify a set of four possible quantum numbers for the circled electron in manganese(Mn). (There is more than one correct answer.) (1 point)

posted 10 months ago

A. What kind of radioactive decay does not cause transmutation? (1 point)

B. The radioactive atom 210/84PO decays by alpha emission. Write an decay.equation showing the decay

C. The radioactive atom 61270 emits a beta particle. Write an point)equation showing the decay. (1

\text { D. Use the nuclear decay reaction }{ }_{90}^{234} \mathrm{Th} \rightarrow{ }_{91}^{234} \mathrm{~Pa}+{ }_{-1}^{0} \mathrm{e} \text { to answer the following questions. (2 }

i. How does the reaction demonstrate the laws of conservation of charge and conservation of nucleon number? (1 point)

(1ii. What is the binding energy of one mole of 23490 th if the mass defect is 10908 g/mol

posted 10 months ago

A. Frequency

The direction and speed at which a wave is traveling

The distance between two adjacent wave peaks

B. Wavelength

C. Velocity

The number of waves passing point in 1 second

B. What is the equation that illustrates the relationship between wave velocity, frequency,and wavelength? (1 point)

C. What are the equations that represent how the energy of an electromagnetic wave is related to the frequency of the wave and to the wavelength of the wave? Define h and c in your equations and give their values. (2 points)