A car moves along an x axis through a distance of 300m, starting at rest (at x=0), and ending at
rest (at x=500m). Through the first ¼ of that distance, its acceleration is 2.15 m/s2
. Through the
next ¾ of that distance, its acceleration is -0.810 m/s2.
.
Find A) the velocity after travelling ¼ of the total distance
B) the time of travelling ¼ of the total distance
C) the time of travelling the remaining ¾ of the total distance
D) the total time of the entire travel.
E) Plot the graph of x-t and v- t of the motion
Answers: 3
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Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass
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The energy equivalent of the rest mass of an electron is
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The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b. b. at twice the distance, the magnitude of the field is 2b. c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.
Answers: 3
A car moves along an x axis through a distance of 300m, starting at rest (at x=0), and ending at
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