Physics, 30.11.2019 01:31 alyssamaize
Afriend slides a box along a flat floor to you, which you slow by applying a force at a 30° angle. is the work you do to slow the box positive or negative? if you instead placed a book directly on top of the box as it passed you, what can you say about the work done by the book? a) positive, positive work doneb) positive, negative work donec) negative work, positive work doned) negative work, no work done
Answers: 2
Physics, 21.06.2019 18:30, Tierriny576
A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s
Answers: 3
Physics, 22.06.2019 15:30, linnaefoos2183
This is the number of complete movements of a wave per second.
Answers: 1
Physics, 22.06.2019 19:00, hairyears3394
Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.
Answers: 3
Physics, 23.06.2019 04:00, sullivanjakob
Preciso de ajuda na parte de termometria e tenho prova amanhã ajuda ae prf
Answers: 1
Afriend slides a box along a flat floor to you, which you slow by applying a force at a 30° angle. i...
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