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A 15.0-g marble is dropped from rest onto the floor 1.38 m below.
(a) If the marble bounces straight upward to a height of 0.630 m, what is the magnitude and direction of the impulse delivered to the marble by the floor? (Use a positive sign for the up direction, negative for down.)
___ kg·m/s
A loudspeaker is placed between two observers who are 120 m apart, along line connecting them. If one observer records a sound level of 52.8 dB and the other records a sound level of 83.5 dB, how far is the speaker from each observer? Enter the longe..
A 35 mm camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. What is the height of the flower%u2019s image on the film
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What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V highest potential difference operating at 5000 rad/s .
You are given a spherical mirror and wish to determine its properties. You place an object on its axis, Find the mirror\'s focal length
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A supermassive black hole passes through the edge of the solar system 1.20 x 10^13 m away. What is the mass of the black hole
A double-slit experiement has slit spacing 0.160 mm. What should be the slit distance L if the bright fringes are to be 4.70 mm apart when the slits are illuminated with 652 nm laser light
A uniform linear charge density of 4.0nC/m is distributed along the entire x-axis. Determine the electric flux through this surface
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 51 Hz and an amplitude of 4 cm.
A heat engine has an efficiency of 25%, and its heat input is 600 J per cycle from the high-temperature reservoir
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