Physics, 08.07.2019 16:20 poohbyar29
The function s(t) describes the motion of a particle along a line. s(t) = t2 − 14t + 22 (a) find the velocity function v(t) of the particle at any time t ≥ 0. v(t) = 2t−14 (b) identify the time interval(s) in which the particle is moving in a positive direction. (enter your answer using interval notation.) (7,∞) (c) identify the time interval(s) on which the particle is moving in a negative direction. (enter your answer using interval notation.) (−7,7) (d) identify the time(s) at which the particle changes direction. (enter your answers as a ,-separated list.) t =
Answers: 2
Physics, 21.06.2019 23:30
Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?
Answers: 2
Physics, 22.06.2019 04:50
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
Answers: 2
Physics, 22.06.2019 06:30
The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?
Answers: 2
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
The function s(t) describes the motion of a particle along a line. s(t) = t2 − 14t + 22 (a) find the...
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