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The left face of a biconvex lens has a radius of curvature of 11.5 cm, and the right face has a radius of curvature of 20.0 cm. The index of refraction of glass is1.44.
a) Calculate the focal length of the lens.b) Calculate the focal length if the radii of curvature of the two faces are interchanged.
Suppose a spacecraft of mass 28000kg is accelerated to 0.25c, How much kinetic energy would it have
An iron bar 40 cm long is braised to a copper bar 40 cm long and of the same diameter. What is the temperature of the junction point
Two converging lenses, each of focal length 14.5 cm, are placed 39.1 cm apart, and an object is placed 29.2 cm in front of the first. What is the magnifcation of the system
A flywheel of mass 187 kg has an effective radius of 0.61 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
An air conditioner is used to keep the interior of a house at a temperature of 20 C while the outside temperature is 35 C. If heat leaks into the house at the rate of 12 kW, and the air conditioner has the efficiency of a Carnot engine, what is the m..
Calculate the electric field at the center of a square 53.7 cm on a side if one corner is occupied by a +38.5 µC charge and the other three are occupied by -29.4 µC charges.
the dentists chair uses a hydraulic press in which the radius of the smaller piston is 3 cm. the dentist wishes to
There is a charge of -3e locked down at a point on a table. 15 meters away, a charge of 3e is released from a scientists hand. What is the potential energy of the charge just as it is released from the scientists hand
An electron is 2cm away from a line whose charge density is 3pC/cm. It is moving away perpendicularly at 1000 km/s. How far will it travel before reversing direction
The critical angle for light traveling in a particular optical medium and incident on an interface with air is 46.7o. Calculate the refractive index of this medium
a calculate the one temperature at which fahrenheit and celsius thermometers agree with each other.b calculate the one
The figure below shows a thin-lens representation of a compound microscope (not to scale). The objective produces a real image I of object O just inside the focal point F1 of the eyepiece. Image I then acts as an object for the eyepiece, which pro..
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