Suppose you can just barely see a magnitude 17 (m=17) star through an amateur's 6-inch diameter telescope. Estimate the magnitude of the dimmest star you will be able to see through a 60 inch telescope.
(The formulas I have are m2-m1=2.5log(F1/F2), and F=L/(4πD^2). m=magnitude, F=flux, L=luminosity, and D=distance
Suppose you can just barely see a magnitude 17 (m=17) star through an amateur's 6-inch diameter...
Suppose you can just barely see a twelfth-magnitude star through an amateur’s 6-inch diameter telescope. What is the magnitude of the dimmest star you can see through a 60-inch diameter telescope?
3. [9 marks] You have access to a small professional telescope that is able to record the ultraviolet through infrared spectrum of a star in the constellation of Orion. You determine that the wavelength of light at the peak of the spectrum is 922.93 nm. The star’s apparent magnitude is m = 0.45. a) [2 marks] Determine the star’s surface temperature in units of Kelvin (K). b) [3 marks] Using the solar constant and the Sun’s apparent magnitude, determine the...
A. Suppose you wanted to be able to see astronauts on the moon. What is the smallest diameter of the objective lens required to resolve a 0.74 m object on the moon? Assme the wavelength of the light is near the middle of the visible spectrum: 550 nm yellow light. (in m) A: 2.38×102 B: 3.45×102 C: 5.00×102 D: 7.24×102 E: 1.05×103 F: 1.52×103 G: 2.21×103 H: 3.20×103 B. In a double-slit experiment, light from two monochromatic light sources passes...
he goal of this problem is to engineer a roller-coaster (see Figure 1). Imagine you work, for an amusement park and your boss asks you to buy a spring that could launch a 2,000kg roller-coaster train on the track. In this problem we consider the acceleration of gravity to be g -9.8m/s. art 1: Frictionless track. We first consider a frictionless track. The train is first compressing a spring of constant k and is suddenly released. The compression A. 4m....
Using C programming language
Question 1 a) through m)
Exercise #1: Write a C program that contains the following steps (make sure all variables are int). Read carefully each step as they are not only programming steps but also learning topics that explain how functions in C really work. a. Ask the user for a number between 10 and 99. Write an input validation loop to make sure it is within the prescribed range and ask again if not. b....
please answer all pre-lab questions 1 through 5. THANK YOU!!!
this is the manual to give you some background.
the pre-lab questions..
the pre-lab sheet.
Lab Manual Lab 10: String Waves & Resonance Before the lab, read the theory in Sections 1-3 and answer questions on Pre-lab Submit your Pre-lab at the beginning of the lab. During the lab, read Section 4 and follow the procedure to do the experiment. You will record data sets, perform analyses, answer questions, and...
Table 6 and Table 7 and Table 8 Calculations
Please!
oni a auns ayeu oj seg on aup uo syans sped ojaA al o suousod ap snipe os paau no x between two balls although they look like sticking together, but the timers count them separately aery ut aun1. un ep an i ( Table 1 Data of the balls' mass, dimension and position. m (kg) d (m) d, (m) d, (m) h, (m) 031S 03I Ol05 O01135 O L...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
just now i sent this questions.
this is the answer given. however the answer i afraid
that he used formula that is not for constant surface temperature
and noncircular formula.
this is the formula foe the noncircular tube. because
the question ask about triangle.
my problem is, i cannot answer question 1(b) that ask
the heat transfer coefficient, h. please help me. thank you.
this pic is a note on constant surface temperature.
page 482
ref: HEAT AND MASS TRANSFER:...