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Physics, 23.06.2019 02:40
If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y β 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t β 1.
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Physics, 23.06.2019 09:00
Choose the correct general statement concerning the total potential and kinetic energy at any point along the arc of swing. the total energy at any point along the arc of swing of the pendulum is always less than 12 joules. the total energy at any point along the arc of swing of the pendulum is always more than 12 joules. the total energy at any point along the arc of swing of the pendulum is always equal to 12 joules. not enough information to determine
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Physics, 23.06.2019 09:30
To solve a problem using the equation for kepler βs third law , enrico must convert the average distance of mars from the sun from meters into astronomical units . how should he make the conversion ?
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Physics, 23.06.2019 11:00
Abox that has self-contained cable clamps holds two light switches. a two-wire no. 12 cable with ground feeds the box, and a pair of two-wire no. 12 cables (four conductors) with ground wires leaves the box to feed the light fixtures. the second switch is fed by a no. 12 jumper wire from the first switch. which one of the following box combinations would furnish the minimum allowable volume? a. two 3-inch Γ 2-inch Γ 21β2-inch gangable device boxes b. two 3-inch Γ 2-inch Γ 11β2-inch gangable device boxes c. two 3-inch Γ 2-inch Γ 23β4-inch gangable device boxes d. two 3-inch Γ 2-inch Γ 21β4-inch gangable device boxes
Answers: 2
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