Q: +125 m/s in the x-direction -135 m/s in the y-direction +230 m/s in the z-direction t is in a…
A: Given data as per question E = 222N/C B = 1.50T
Q: A car accelerates from rest to 14 m/s in 5 seconds on a horizontal road under perfect conditions. If…
A:
Q: During an experiment 8.8x1014 Hz light shines on a metal plate and the Photoelectric Effect occurs.…
A:
Q: (a) A device consists of an object with a weight of 35.0 N hanging vertically from a spring with a…
A: The driving force F=705.33N The new amplitude of oscillation when b=5N.s/m a=1.74cm And the…
Q: Monochromatic light falls on two very narrow slits 0.0409 mm apart. Successive fringes on screen…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: find the period of the pendulum 2.27 meters long in an elevator moving with 1.4 m/s^2 dawn ?…
A: If an object is accelerating downward at a rate of a m/s2, then the effective acceleration felt by…
Q: A person 1.5 m tall stands 4.0 m from a convex mirror and notices that he looks precisely half as…
A:
Q: The charges and coordinates of two charged particles held fixed in an xy plane are q₁ = 2.24 μC, x₁…
A: Note: As per the guidelines, we can only answer three subparts of a question. Sorry for the…
Q: ✦ (a) Find the equivalent resistance between points A and B for the combination of resistors shown.…
A:
Q: An object is not necessarily in equilibrium when ΣF = 0. Give a real life example of when this would…
A: Given An object is not necessarily in equilibrium when ΣF = 0. To find out A real life example of…
Q: Assume that the average density of a arctic iceberg is 0.67 that of seawater. What fraction of an…
A:
Q: The power delivered to an AC circuit is maximum when the power factor phase factor resonance ratio…
A:
Q: -The inner conductor of a coaxial cable has a radius of 0.800 mm, and the inner radius of the outer…
A:
Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 18.7 Q. When they are…
A: Let R1 be the smaller resistance and R2 be the larges resistance Then R1 + R2 = 18.7 ohm R2 =…
Q: er a fig the vec he mor the ch actor
A:
Q: In Bohr's hydrogen model, the electrons move in a circular orbit around the proton and its momentum…
A: Bohr was the first man to remove the shortcomings of Rutherford's model of atom. He postulated that…
Q: 13 Power transmission lines have transformers between high voltage supply lines and consumers…
A: For long distance transmission wire electrical utilities require high voltage. For home high…
Q: A meter stick is attached to one end of a rigid rod with negligible mass of length / = 0.517 m. The…
A:
Q: A heavy hydrocarbon oil which has a Cp = 2.30 kJ/kg.K is being cooled in a heat exchanger from 371.9…
A:
Q: In a severe head-on collision of an automobile, a deceleration of 60g’s or more (1 g = 32.2 ft/s2)…
A: Consider the given data as below. Deceleration, a=60×g=60×32.2=1932 fts2 Mass, m=45 lb…
Q: The mass of an electron is 9.109 381 88 x 10-31kg. Find (a) y and (b) 3 for an electron with kinetic…
A: Given that, Mass of electron, m = 9.10938188 * 10-31 kg Kinetic energy, E = 32.1024 MeV We know…
Q: hree polarizers, centered on a common axis and with their planes parallel to one other, have…
A:
Q: Light of wavelength 575 nm falls on a double slit, and the first bright fringe of the interference…
A:
Q: com/course.html? A 0.280 kg potato is tied to a string with length 1.50 m, and the other end of the…
A:
Q: Complete the sentence with the correct word choices: When charge is transferred between objects,…
A:
Q: need help with number 20
A: Given For student-A Force applied by student B = 30 N Height upto which box is lifted = 0.40 m Time…
Q: Assume that there is no friction between the car and the track. The car has a mass of 750 kg.…
A:
Q: A circuit has an Electrical power of 900W. The circuit has a 45V battery. What is the Total…
A:
Q: one siit is carved. side of the screen, what do we notice? That the screen does not affect the wave…
A: A wave hits one side a screen where one slit is carved.
Q: The 0.100 kg sphere in (Figure 1) is released from rest at the position shown in the sketch, with…
A:
Q: On what principal does a transformer works?
A: Principal of Transformer:- It works on the principal of electromagnetic Induction and mutual…
Q: downward 8.7 N force (F1) is applied 2 m from the left end of an object. An upward force (F2) is…
A: downward 8.7 N force (F1) is applied 2 m from the left end of an object. An upward force (F2) is…
Q: A projectile is launched horizontally from the top edge of a 20-m tall building with a voxof 25 m/s.…
A: The projectile falls only under acceleration due to gravity(g) which is always downward ie along y…
Q: (3) The following measurements were made on a Thyrite resistor: Current Potential Difference 0.50…
A: Resistors are passive elements that introduce resistance to the flow of electric current in a…
Q: You are pushing your little sister in a sled over level ground. Their combined mass is 30 kg. The…
A: Given combined mass = 30 kg. The coefficient of friction is 0.2 We have to calculate the force must…
Q: virtual object. What is the curvature of the mirror? Group of answer choices concave
A:
Q: View History Bookmarks Profiles Tab Window Help Course Home + g Physics Course Home ✰…
A:
Q: A 75-N cart is being pulled by a rope along a frictionless inclined surface as shown in the given…
A: The net force is the sum of all the forces. We firstly draw FBD or free body diagram. It tells us…
Q: Kindly refer to the diagram below. What is the resultant electric force on charge A due to charges B…
A:
Q: The hydraulic lift at a car repair shop is filled with oil. The car rests on a 25-cm-diameter…
A:
Q: How is a dynamic loudspeaker and dynamic microphone Similar? How are they different?
A: Dynamic Speaker The common type of loudspeaker that uses a magnetic field to move a coneshaped…
Q: olve for the Req, individual currents and voltage drop across each resistors from the given circuit…
A:
Q: 2. A weather balloon is rising vertically at a rate of 4 m/s. an observer stands 100m from the point…
A:
Q: A long wire is connected to the terminals of a battery. In 8 s, 9.6 x 10^20 electrons pass a cross…
A:
Q: A glass sphere (n = 1.50) with a radius of 16.0 cm has a tiny air bubble 4.30 cm above its center.…
A: Given refractive index of the sphere = 1.5 Radius of the sphere = 16 cm Location of the bubble = 4.3…
Q: Self-Paced Practice Problem 10.4 Determine the direction of the magnetic force on the following…
A:
Q: A man weighs 176 lb. Determine the weight in newtons. (1 kg = 2.2 lb)
A: Given Mass of man m = 176 lb To find Weight of man in Newtons
Q: What is the change in the kinetic energy of the block from point O to the highest point reached by…
A: Given:mass of the block, m = 3kg initial speed, u = 8.5 m/s angle of inclination, θ = 20o coeff of…
Q: A form of energy that permits human eye to see.
A: The only one form of energy exists which permits human eye to see is light energy.
Q: A spring scale is used to measure force. During a trip to the moon, an astronaut weighs a sample of…
A: The mass of body remains same. Mass of body is 4.5 kg.
Step by step
Solved in 3 steps
- 2. Plasma oscillations in the ionosphere. The plasma density in the lower ionosphere has been measured during satellite reentry to be about a) 10¹8 m-³ at 50 km altitude, b) 10¹7 m-³ at 70 km and c) 10¹4 m²³ at 85 km. Use the formula for the electron plasma frequency to compute its numerical value for each of these three altitudes, AND state (we'll address this quantitatively later, when we get to EM wave propagation in plasmas) why the ionosphere is a relevant consideration for radio communications both on earth and between earth and interplanetary spacecraft.1. A lalu. dject and a yei nlijest teu the sare pesitinn al i-0 sasel and lnh initially al :Tat. Ihe pusitoc vf the blue vgect s a fiavica uf timo is given ty xtt) = r- 2r'(sume all conslanis re in 31 umi a. The green okjucl sackzais ai a cumm. m e2 mis a. Al elal tim: late slijasa huu thu MN uksity! Whal is he Mnm in the chj:a; 's wlacitis when thir saslıztiens an cal1. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature. a. If we observe a star's spectrum and find that the peak power density occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (Remember to include units)b. If we observe a star’s spectrum and find that the peak power density occurs at the border between blue and ultraviolet light, what is the surface temperature of the star? (Remember to include units) Submit QuestionQuestion 1
- 1. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature. a. If we observe a star's spectrum and find that the peak power density occurs at the border between red and infrared light, what is the approximate surface temperature of the star? (Remember to include units)Incorrectb. If we observe a star’s spectrum and find that the peak power density occurs at the border between blue and ultraviolet light, what is the surface temperature of the star? (Remember to include units)Incorrect Submit QuestionQuestion 1B2. A spherical star is detected by an astronaut in a spacecraft at a distance z of 1.5×10¹2 kilometers. The star can be regarded as a blackbody with a temperature of 11,300 K. The radius r of the star is 3.5×106 kilometers. (a) Calculate the radiant exitance and the radiant intensity of the star. (b) Calculate the irradiance that can be detected by the astronaut. (c) The photodetector used by the astronaut in the spacecraft has a responsivity of 120 kV/W and an photosensitive area of 0.5 mm². Calculate the output voltage of the detector in the detection of the star. CAMINS +II+ Figure B2a. Describe the concept of “sphere of influence” and how it is estimated. b. Calculate the SOI for the Moon relative to the Earth. c. Would a single lone star have a computed sphere of influence, as defined in this class, which could be calculated? If no, why not? If yes, how would you do it?
- An ideal blackbody... A. Emits all wavelengths of radiation. B. Absorbs all wavelengths of radiation. C. Obeys Wien's law. D. All of the above.Why don’t we see hydrogen Balmer lines in the spectra of stars with temperatures of 45,000 K? a. There is no hydrogen in stars this hot. b. The stars are hot enough that most of the hydrogen is ionized and the atoms cannot absorb energy. c. These stars are so cool that nearly all of the electrons in the hydrogen atom are in the ground state. d. Stars of this temperature are too cool to produce an absorption spectrum. e. Stars of this temperature are too hot to produce an absorption spectrum.6. What is the temperature of an object if the peak wavelength of its blackbody spectrum is 1200 micrometers? a. 2.4 K b. 25 K С. 322 К d. 833 K e. None of these CS Scanned with CamScanner
- 2. The wavelength of maximum intensity of the sun's radiation is observed to be near 500 nm. Assume the sun to be a black-body and calculate,imsed of (a) the sun's surface temperature (b) the power per unit area (intensity) emitted from he sun's surface. (c) At what rate is the sun losing mass in units of kg/s? (Hint: What are the units from rignslavaw wert odrai Jari W (d) your answer in part (b)?) (d) At that rate, how much time would it take to exhaust the sun's fuel supply? Does your answer seem reasonable? (The sun's mass is ~2.0x1030 kg)1. Explain the process of excitation, de-excitation, and ionization. 2. What are Lyman, Balmer, and Paschen series of a hydrogen atom? 3. What will be the wavelength of light emitted when in a hydrogen atom an electron jumps from n=5 to n=3 shell? What will be the name of this emission line? What type of telescope/spectroscope (UV, visible, or IR) will you need to observe and record this emission line? 4. You detected a strong Hβ emission line spectrum from your source toward the center of the Milky Way. What can you tell about the nature of the radiation source? 5. An electron in an excited state falls to the ground state by interaction with a free electron. Write the equation to represent this process. Will any photon be emitted in this case? Why or why not? 6. What is optical depth? What happens if a medium is optically think? Optically thin? 7. Using the radiative transfer equation of a simple slab-like absorbing medium with no internal emission source, I = I0 exp(−n σ x), where I0…19. A hydrogen atom in excited energy state E24x 10" drops down to the ground state at energy level E 21.76 x 10"), giving off a photon. a. What is the energy of the emitted photon injoules? b. What is its wavelength? c. Based on the EM spectrum, what type of raciation is this?