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Solve the all parts of given question:
Question: The image of a tree on a 35 mm color slide is 1.3 mm high. It is to be projected onto a screen 7 m from the slide, and is to appear 602 mm high.
Part A: What focal length lens (in meters) is needed?
Part B: What is the distance in meters between the lens and the slide?
Part C: What is the magnification of the system?
If possible just a brief explanation how you got the answer? Thanks.
A 9.0 cm diameter wire coil is at first oriented so that its plane is perpendicular to a magnetic field of 0.67 T pointing up. During the course of 0.30 s, the field is changed to one of 0.25 T pointing down. What is the average induced emf in coil.
an airplane has a mass of 34500 kg and takes off under the influence of a constant net force of 42500 n. what is the
A 3.0 m long rigid beam with a mass of 125 kg is supported at each end. An 65 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam
Aingly-ionized lithium has a nucleus of charge +3e and two electrons. Use the variational principle to estimate the ground-state energy. Now consider a nucleus of charge Ze with two electrons. Use the variational principle to estimate the ground-st..
a randomized trial is conducted to evaluate the efficacy of a new cholesterol lowering medication. the primary
Assume the flux through a loop changes uniformly from 16 Wb to 24 Wb in 11.5 second. Obtain the magnitude of the emf induced in the loop
A playground is on the flat roof of a city school, 5 m above the street below (see figure). The vertical wall of the building is h = 6.50 m high, Find the speed at which the ball was launched
One end of a string, 15 mlong, is moved up and down with a simple harmonic motion at a frequency of 30 Hz. What is the wavelength of the waves on the string
An LC circuit has zero resistance, no battery, a capacitor C=70microFarads, and an inductor L=0.4H connected in a simple loop. The capacitor and inductor store a compined total energy of U=28microJoules.
A transparent oil with index of refraction 1.16 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
halleys comet has a period of approximately 76 years and it moves in an elliptical orbit in which its distance from the
question1man pushing a mop across a floor causes it to undergo two displacements. first has the magnitude of 154 cm and
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