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A jeweller’s lens of focal length 1.7 cm is utilized as a magnifier. With the lens held near the eye, decide the following.
a) What is the object distance giving the maximum magnification?
b) What is the angular magnification when the object is at the focal point of the lens?
c) What is the angular magnification when the image formed by the lens is at the near point of the eye (25 cm)?
A hollow spherical shell with mass 1.80kg rolls without slipping down a slope that makes an angle of 40.0? with the horizontal. Find the magnitude of the frictional force acting on the spherical shell
The driver of a 1250 kg car, initially traveling at 11.6 m/s, applies the brakes, bringing the car to rest in a distance of 23.0 m. Find the net work done on the car
In a circuit of two lamps in series, if the current through one lamp is 2 A, what is the current through the other lamp
If a camera with a 60 mm lens is to resolve two objects that are 3.0 mm from each other and both objects are 4.0 m from the camera lens, what is the minimum diameter of the camera lens
A glass vial filled with mercury vapor (4.88 eV between ground state and first excited state), is placed between the cathode and anode of a photoelectric effect apparatus. Assume that the glass is so thin that it will not reduce the energy of phot..
In diving to a depth of 346 m, an elephant seal also moves 422 m due east of his starting point. What is the magnitude of the seal's displacement
a conductor anchored to the ground receives electrons that arc to it from a van de graaff generator. if the conductor
A space traveler weighs 580 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
calculate the de broglie wavelength of a 4.7 mev ? particle emitted from an atomic nucleus whose diameter is
a proton moves through a magnetic field at 29.9 of the speed of light. at a location where the field has a magnitude of
An electron in a hydrogen atom makes a transition from the n = 5 energy stage to the ground state (n=1). What is the frequency of the emitted photon
A hunter aims directly at a target ( on the same level ) 75 maway. If the bullet leaves the gun at a speed of 180 m/s, by how much will it miss the target? ( ask for distance)
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