What focal length eyepiece should astronomer use
A telescope consists of a mirror with radius of curvature 4.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 181, what focal length eyepiece should he use?
Expected delivery within 24 Hours
Light of wavelength 696 nm is incident on a single slit. The central bright fringe is 2.63 cm wide on a flat screen that is 87.3 cm from the slit. What would be the width of the central bright fringe if the wavelength were 461 nm?
A globular cluster at its farthest point from the galactic center is at a distance of 104 pc. What is its period of galactic revolution?
The surface area of the tubes is 45 m2 and the overall heat transfer coefficient is 2100 W/m2-K. Calculate the mass flow rate of cooling water needed and the rate of steam condensenation in the condenser.
The lens of a slide projector with a focal length of a 120 mm projects a slide onto a screen that is 13 m away. How far from the lens must the slide be placed to form a sharp image on the screen? (in cm)
Given the answer to part (a) and the data below at 298.15 K, assuming the reaction enthalpy is constant over this temperature range, calculate delta G for this reaction at 400 K.
A proportional control system is to be used to control the wing flaps of a jet airplane. The wind load is expected to cause as much as 600 in · lb of torque. The system should be able to keep the flaps to within 5° of the set point. Fin
Calculate the change in Entropy, Enthalpy, and Gibbs Energy due to mixing when 35 moles of He gas, 15 moles of Ne gas and 50 moles of N2 are mixed at a constant pressure of 1.00 atm.
The two spaceships are traveling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to have the same length. If the slower spaceship is moving with a speed of 0.500c, determine the speed of th
1935609
Questions Asked
3,689
Active Tutors
1417284
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Shao Mae takes medication to relieve depression. The medication increases her neural activity. However, immediately after firing, a neuron
Question: Completion of myelination in the CNS is one possible reason that:
Complete the following statements to describe polygenic inheritance. Some traits, such as skin color, are controlled by several sets of (Click to select)
Explain how bile is formed and the function of the gallbladder. Explain the most common cause of acute pancreatitis. What is the basic treatment?
Secretion of melatonin by the pineal gland will deactivate the ascending portion of this brain structure which, among other things,
Among the many rules, precepts, and regulations followed by observant Jews, there are dietary rules that explain what foods and meals are considered permissible
Question: Check all the characteristic of cardiac muscle tissue.Check All That Apply Cells are striated Cells are striated Cells are structurally and functional