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A steel wire of negligible mass is placed under tension by attaching its bottom to the tip of a solid copper cone of height H. The top of the wire is suspended from the ceiling. When the wire is struck, it vibrates with a fundamental frequency (n = 1) of 300 Hz. If the cone is now submered in benzene up to half its height, what is the wire's new fundamental frequency?
A 5-kg rock is dropped off a 30-m high building. If the rock is dropped from rest, what is the average power supplied by gravity
suppose we measure the resistance from one hand to the other and find it to be 2 kilo ohms. What is the resistivity of skin
q1. a 58.0-kg projectile is fired at an angle of 30.0deg above the horizontal with an initial speed of 1.26 102 ms from
Clifford is in a real hurry, however, and skips the speedramp. Starting from rest with an acceleration of 0.39 m/s2, he covers the same distance as the ramp does, but in one-fourth the time. Illustrate what is the speed at which the belt of the ra..
q1. assuming that the maximum amplitude of the field at point o for the wave from midway between the slits is er now
Determine the possible values of the total spin and total angular momentum quantum numbers, S and J, for a helium atom in the 1s3p conguration
Two identical converging lenses have focal lengths of 15 cm and are aligned on the same principal axis. What is the total magnification of the two lenses
A lens forms an image of an object. The object is 16.0 cm from the lens. is it erect or inverted
A proton and an alpha particle (q = +2e, m = 4 u) are fired directly toward each other from far away, each with an initial speed of 0.012c. What is their distance of closest approach
A 1025 kg car carrying four 78kg people travels over a rough "washboard" dirt road with corrugations 4m apart which causes the car to bounce on its spring suspension.
q1. an archer puts a 0.54 kg arrow to the bowstring. an average force of 202 n is exerted to draw the string back 1.3
Assume you are 80cm from a plane mirror. What area of the mirror is used to reflect rays entering one eye from a point on the tip of your nose if your pupil diameter is 5.60 mm.
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