Physics, 24.04.2020 22:47 alannaswitzer
The motion of an object undergoing constant acceleration can be modeled by the kinematic equations. One such equation is xf=xi+vit+12at2xf=xi+vit+12at2 where xfxf is the final position, xixi is the initial position, vivi is the initial velocity, aa is the acceleration, and tt is the time. Let's say a car starts with an initial speed of 15 m/sm/s, and moves between the 1000 mm and 5000 mm marks on a roadway in a time of 60 ss. What is its acceleration?
Answers: 3
Physics, 22.06.2019 18:00
According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.
Answers: 2
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
Physics, 23.06.2019 17:20
Pearl labels a diagram of a charged capacitor as shown. which change would correct the error in the diagram? changing +2q to +q changing +2q to –2q reversing the direction of the arrows reversing the labels for conductors and insulator
Answers: 2
The motion of an object undergoing constant acceleration can be modeled by the kinematic equations....
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