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An object is placed in front of a converging lens in such a position that the lens (f = 14.0 cm) creates a real image located 28.0 cm from the lens. Then, with the object remaining in place, the lens is replaced with another converging lens (f = 19.0 cm). A new, real image is formed. What is the image distance of this new image?
An iron anchor of density 7870 kg/m^3 appears 200 N lighter in water than in air. What is the volume of the anchor
A diver running 2.7 m/s dives out horizontally from the edge of a vertical cliff and 2.0s later reaches the water below? how far from its base did the diver hit the water
The elevator is firstly at rest. How far does the elevator move even as accelerating to full speed from rest.
Construct a point charge configuration with three charges where there is a point (not at infinity) where the electric field is zero.
A steady beam of alpha particles (q = + 2e, mass m = 6.68 x 10-27 kg) traveling with constant kinetic energy 26 MeV carries a current of 0.34 µA. If the beam is directed perpendicular to a flat surface, how many alpha particles strike the surface i..
Consider a tennis ball cannon people use to practice their game: what is the approximate wavelength of these tennis balls
A wire is attached to a ceiling and a brass ball. The tension on the wire is T=120N. What is the new weight of the ball
A bottle made of ordinary glass has an internal volume of 1.0000 liter at 20.0 oC, At what temperature ( inoC, enter deg in the answer box) will water begin to overflow the bottle
A molecule is shown schematically. The distance from the center of the larger atom to the center of the smaller atom is d = 0.96, and the angle between the smaller atoms is θ = 105.6°. Find out the center-to-center distance between the smaller ato..
While a roofer is working on a roof that slants at 44.0 above the horizontal, he accidentally nudges his 93.0 toolbox, causing it to start sliding downward, starting from rest.
A 21.5 g bullet strikes a 0.650 kg block attached to a fixed horizontal spring whose spring stiffness constant is 7.30 x 10^3 N/m and sets it into vibration with an amplitude of 21.5 cm. What was the speed of bullet before impact if the bullet and bl..
a capacitor with a capacitive reactance of is connected in series with a 100 resistor across in ac source of frequency 60.0hz. what is the phase angle
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