Solve and show your work please What is the frequency of the most intense radiation from...
A photocathode having a work function of 3.4 eV is illuminated with monochromatic electromagnetic radiation whose photon energy is 4.6 eV. What is the threshold (cutoff) frequency for photoelectron production? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s) A.9.1 × 1014 Hz B.1.1 × 1015 Hz C.1.0 × 1015 Hz D.2.9 × 1014 Hz 8.2 × 1014 Hz
please solve and show work and have neat handwriting because it is mandatory for the neatness According to Stefan's law of radiation the absolute temperature T of a body cooling in a medium at constant absolute temperature 7 is given by where k is a constant. Stefan's law can be used over a greater temperature range than Newton's law of cooling. (a) Solive the differential equation approximates Stefan's law. (Hint: Think binomial series of the right-hand side of the DE.]...
#’s 10 and 13, please show all work. 13. A horizontal string 1.20 m long has a mass of 562 mg. It is attached to the end of a 100 Hz tuning fork·The other end of the string attaches over a pulley and supports a light pan. What load should be placed on the pan in order to have the string vibrate in4 segments. (String will vibrate with same frequency as tuning fork - resonance). 10. A factory near a...
I only know the algebra way to solve. Please show your work. Thank you :) 13, What is the amount of work done to bring a +10 μC charge from infinity to the point A? Potential at infinity is zero. (ia)0.51J (b) +0.27 J (c) 0.27 J (d) +0.51 J +8uC 3.0 m -ISAC . 4.0 m
Please show all your work and write neatly please! Thank you guys! ?? Solve the following problems. The activation energy for the reaction below equals 1.0 x 105 J/mol. Given k 2.5 x 103 sec1 at 332 K, find k at 375 K. 1. N20s (g)-2NO (g) + 0a(g) Based on information in problem 1, find the temperature at which k is twice as large as it is at 332K. 2.
Please help and solve Radiation from a heater is used to heat the still and produce vapor steam as shown here. The heater is maintained at 1000C. The surrounding temperature is 27C. By employing a hypothetical surface for the side surface between Al and A2 to form an enclosure, a radiative circuit can be plotted as shown. Take D= 200mm, D2 = 250mm, H = 100mm.&1 = 0.8. Water latent heat of vaporization is 2.26 x 106J/kg. vapor ED RE...
hi please show your work clearly and explain, thank you! 6. Light with a frequency of 2.37 x 1015 Hz ejects electrons from the surface of platinum, which has a work function of 6.53 eV. What is the minimum de Broglie wavelength of the ejected electrons? nm
please show work What is the magnitude and direction of the current at point a in this circuit? (Ry=20, R2=40, R3=20, emf Ey=10 V, emf E7=20 V) Image size: SML Max # eml R w R2 - m RE emla Select the correct answer O I= 1.0 A to the left O I= 3.5 A to the left O I= 3.9 A to the right O I= 2.0 A to the right O = 3.0 A to the right
PLEASE SHOW WORK Question 10 3.0 - Y - 5z = 6 Solve the system 4x + y + 2z = 5 for X using Cramer's Rule. X – y + 32 = 15
PLEASE SHOW ALL WORK. U Question 13 O pts 1) The bulk modulus of water is 2.2 x 10° Pa 22 x 10 N/m?). By how much does a cubic meter (10mof water decrease in volume when it is taken from the surface of the ocean down to a depth of 1.0 km, where the pressure is 98 10Pa greater than at the surface? II) A 0.250 kg object attached to a spring oscillates on a frictionless horizontal table with...