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A person has a far point of 21 cm. This means that the person’s corrective lenses should produce an image 21 cm in front of the eye for an object that is very far away.
a. What power glasses would correct this person’s vision, assuming the glasses are worn 1 cm in front of the eye? Include a sketch.b. What power contact lenses would correct this person’s vision, assuming the contact lenses are worn on the eye? Include a sketch.
A block starting atop a frictionless hemispherical dome starts sliding from rest. Write down the two equations of motion of the block in terms of r and ? (i.e. use polar coordinates).
A wire (mass = 50 g, length = 40 cm) is suspended horizontally bytwo vertical wires which conduct a current I = 8.0 A, What is the tension in eitherwire
A uniform linear charge density of 4.0 nC/m is distributed along the entire x axis. Consider a spherical (radius = 5.0 cm) surface centered on the origin. Determine the electric flux through this surface
A Force F= (6xi+ 5yj), where F is in newtons and x and y are in meters, acts on an object as the object moves in the x direction, Find the work W = integral (F · d vector r) done by the force on the object
On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.7-kg basket of goodies beside her. A wolf came along, at what angle was Red Riding Hood pulling
A long straight wire is aligned north-south and carries current in the northerly direction. What is the direction of the magnetic field created directly above the wire
What is the temperature T of the Concorde's skin in flight?
The earth is 1.49*10^11 meters from the sun. If the solar radiation at the top of the earths atmosphere is 1340 W/m^2, what is the total power output of the sun
What is the average kinetic energy of an ideal gas.
A diffraction grating is made up of slits of width 420 nm with separation 1300 nm. How many maxima are there in the full diffraction pattern
A dockworker loading crates on a ship finds that a 18-kg crate, initially at rest on a horizontal surface, Find the coefficients of static and kinetic friction between crate and floor
A window air-conditioner unit absorbs 9.75×10^4J of heat per minute from the room being cooled, What is the power consumption of the unit in watts
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