Physics, 02.07.2019 04:10 john092103
In case 1, one end of a horizontal plank of mass m and length l is attached to a wall by a hinge and the other end is held up by a wire attached to the wall. in case 2 the plank is half the length but has the same mass as in case 1, and the wire makes the same angle with the plank. 1) in which case is the tension in the wire biggest?
Answers: 3
Physics, 22.06.2019 05:30, shychk04ot109f
Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.
Answers: 1
Physics, 22.06.2019 13:30, kuddlebugsmommy
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
In case 1, one end of a horizontal plank of mass m and length l is attached to a wall by a hinge and...
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