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Two lenses that are L = 37 cm apart are used to form an image, as shown in Figure 26-52. Lens 1 is diverging and has a focal length f1 = -7 cm; lens 2 is converging and has a focal length f2 = 17 cm.
(a) Determine the distance from lens 1 to the final image. (Include the sign of each answer.)
(b) What is the magnification of this image?
A current of 4 A flows in a copper wire 8 mm in diameter. The density of valence electrons in copper is roughly 9 × 1028 m?3. Find the drift speed of these electrons
a typical car under hard braking loses speed at a rate of about 6 ms2. the typical reaction time to engage the brakes
A hanging wire made of an alloy of aluminum with diameter 0.12 cm is initially 2.8 m long. When a 40 kg mass is hung from it, the wire stretches an amount 1.57 cm. A mole of aluminum has a mass of 27 grams, and its density is 2.7 g/cm3.
A ball of mass m makes a head-on elastic collision with a second ball (at rest), What is the mass of the second ball
If a human ear canal can be thought of as resembling an organ pipe, closed at one end, that resonates at a fundamental frequency of 2,975 Hz, what is the length of the canal? Use normal body temperature 37°C for your determination of the speed of sou..
A 7.80-g bullet moving at 480 m/s penetrates a tree trunk to a depth of 6.0 cm. Use work and energy considerations to find the average frictional force that stops the bullet
a point charge of 4 c is located at x 2 m y 3 m. a second point charge of -4 c is located at x 2 m y -1 m.a find
describe the enery transformations that take place as you swing on a swing.why do you have to keep pumping to keep swinging as high? what happens if you stop pumping
A spring is hanging from the ceiling. Attaching a 360 g physics book to the spring causes it tostretch 10 cm in order to come toequilibrium. What is the book's maximum speed
three protons are positioned at the corners of an equilateral triangle with sides 2mm in length. What is the leectric field at the enter of one of the edges of the triangle
In order better to map the surface features of the Moon, a 325-kg imaging satellite is put into circular orbit around the Moon at an altitude of 1.31 × 102 km
A 3.50-kg ball, moving to the right at a velocity of +2.72 m/s on a frictionless table, Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
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