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
1958778
Questions Asked
3,689
Active Tutors
1428739
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
You're instructing a patient with athsma about the use of bronchodilators. You should teach the patient which one?
How have social media and other new forms of advertising changing OPDP's work?
Observing and reporting a correctional client's behavior is extremely important, to ensure they receive the right mental health care.
You are trying to improve patient satisfaction scores in your hospital's emergency department. You decide to poll 40 patients a day for three weeks.
Sam is concerned about his risk for his stroke since his dad died of stroke at age 57 based on the following information why would you recommend
You are on your 5th straight duty in the Urgent Care and you are seeing a 18 yo may who presented with acute-onset abdominal pain for 2 days.
A nurse is caring for an 8-year-old male with a history of moderate persistent asthma. He is accompanied by his mom and dad who reported