Physics, 19.12.2019 02:31 strodersage
The position of a particle is given by the expression x = 6.00 cos (6.00πt + π/2), where x is in meters and t is in seconds. (a) determine the frequency. 3 correct: your answer is correct. hz (b) determine period of the motion. 1/3 correct: your answer is correct. s (c) determine the amplitude of the motion. 6 correct: your answer is correct. m (d) determine the phase constant. 3.14/2 correct: your answer is correct. rad (e) determine the position of the particle at t = 0.350 s. 689 incorrect: your answer is incorrect.
Answers: 2
Physics, 21.06.2019 23:20
Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
Answers: 3
Physics, 22.06.2019 01:10
The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2
Answers: 2
Physics, 22.06.2019 12:10
Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
Answers: 2
Physics, 22.06.2019 13:10
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)
Answers: 2
The position of a particle is given by the expression x = 6.00 cos (6.00πt + π/2), where x is in met...
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