Physics, 13.10.2021 04:30 dannyelleparker9680
We know an object moving in a circle at constant speed feels a centripetal acceleration inward towards the center of the circle. Two students are arguing about this in the context of Newton's 2nd/1st law. One says that since the speed is constant Newton's 1st law says the net force is zero. The other says that since there is a net acceleration points to the center of the circle the net force must also point in to the center of the circle and be non-zero. Who is right
Answers: 1
Physics, 22.06.2019 10:30
Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
Answers: 1
Physics, 22.06.2019 12:00
Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter
Answers: 1
Physics, 22.06.2019 15:00
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 3
We know an object moving in a circle at constant speed feels a centripetal acceleration inward towar...
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