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A telescope consists of an objective (f=50cm) and a positive focal length eyepiece (f=?). When the telescope is properly focused on the moon, the separation between the objective and eyepiece is found to be 55 cm. What is the magnification of the telescope?
A converging lens with a focal length of 6.20cm forms an image of a 3.80mm-tall real object that is to the left of the lens. Where are the object and image located
A spaceship travels toward the Earth at a speed of 0.97c. The occupants of the ship are standing with their torsos parallel to the direction of travel. What are the occupants' width according to others on the spaceship
Imagine a solar electric power plant that operates by using a gigantic mirror to concentrate light on the boiler for a steam engine. What is the maximum electric power
A cable is lifting a construction worker and a crate, asthe drawing shows. The weights of the worker and crate are915 and 1500 N, respectively. What is the tension in the cable below the worker
A bullet with mass 5.44 g is fired horizontally into a 2.103-kg block attached to a horizontal spring. Find the initial speed of the bullet-block system
A television screen is illuminated using a beam of electronstraveling at 7.50×106 m/s in a1.75×10−2 T magnetic field. If an electron ismoving in the positive x direction and the magnetic fieldis oriented 55.0° from the z axis in the firstquadrant of ..
A student sits on a rotating stool holdingtwo 5 kg objects. When his arms are extendedhorizontally, the objects are 0.9 m from the axis of rotation, Calculate the change in kinetic energy of the system
If the elastic limit of steel is 5.0*10^8 Pa. determine the minimum diameter a steel wire can have if it is to support a 62 kg circus performer without its elastic limit being exceeded.
A wrecking ball (weight = 5010 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3670 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
Given the capacitors, C1=2muF, C2=1.5 muF and C3=3muF, what arrangement of parallel and series connections with a 12-V battery will give the min voltage drop across the 2muF capacitor? What is the min voltage drop?
A 747 with a wingspan of 60 m is flying across an area of the earth where the earth's magnetic field is 5 x 10 -4 T. how much potential difference is induced between the wing tips
a 43-year - old mother of three comes to a physicians office with suspected breast cancer. because she is located in a
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