Physics, 13.08.2021 01:00 hipposaresofluffy
An ideal horizontal spring-mass system oscillates with a period of 0.900 seconds. The mass is 3.00 kg but the spring constant is not known. When this same spring and mass are arranged to hang vertically, the frequency of oscillations will be:
a. 0.40 Hz
b. 1.2 Hz
c. 2.5 Hz
d. none of the above are correct
Answers: 2
Physics, 21.06.2019 17:30
The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
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Physics, 22.06.2019 05:20
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Answers: 3
Physics, 22.06.2019 11:00
What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.
Answers: 1
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
An ideal horizontal spring-mass system oscillates with a period of 0.900 seconds. The mass is 3.00 k...
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