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A lens that has a focal length of 5.00 cm is used as a magnifying glass.
(a) To obtain maximum magnification and an image that can be seen clearly by a normal eye, where should the object be placed?
(b) What is the magnification
A 70-kg climber is hanging by a rope off the edge of a cliff, with the top end of the rope tied to a 200-kg rock. However, the rock is sitting on an icy horizontal surface,
A 63.0 kg astronaut is ona spacewalk when the tether line to the shuttle breaks. the astronaut is able to throw a 10.0 kg oxygen tank in a direction away from the shuttle with a speed of 12m/s, propelling the astronaut back to the shuttle.
A merry-go-round starts from rest and reaches the angular speed of 4 rpm in the first two minutes. What would be the angular acceleration of the merry-go-round
An object is placed 9.30 cm in front of the cornea. he image formed by the cornea serves as an object for the lens. Treat the lens as a thin lens 7 mm behind the cornea. Find the optical power of the lens necessary to form an image on the retina
The electric field midway between two equal but opposite point charges is 672N/C , What is the magnitude of the charge on each
Hydrogen under p = 5 atmospheres and T = 20 C is warmed isobarically until its volume increases from 1 to 2 liters. Calculate the absorbed heat.
An unstrained horizontal spring has a length of 0.31 m and a spring constant of 190 N/m. Two small charged objects are attached to this spring, one at each end. Determine the possible algebraic signs
A 1000 resistor is made by wrapping this wire in a spiral around a 3.90 -diameter glass core. How many turns of wire are needed
If a particle of mass 4.9 kg is moving east at 10 m/s and a particle of mass 19 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair
the speed of sound in the air inside a 0.640-m long gas column is 340 ms. what is the fundamental resonant frequency of
The fringes observed in a double-slit interference experiment when the two slits are illuminated by white light show dispersion of both light and color, how many bright fringes can be seen on the screen
Two identical guitar strings are prepared such that they have the same length (2.43 m) and are under the same amount of tension. find the wave propagation speed on the guitar strings
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