Transverse waves travel with a speed of 105 m/s along a taut copper wire that has a diameter of 2.28 mm. What is the tension in the wire? (The density of copper is 8.93 g/cm3.)
a. 1 610 N
b. 803 N
c. 402 N
d. 201 N
e. 128 N
c
You might also like to view...
Which of the following describes a major challenge of interstellar travel at near light speed?
A) Supernova explosions could destroy spaceships passing nearby. B) Asteroid fields floating in interstellar space will present a severe navigational challenge. C) Any interstellar journey will take much longer than the lives of the crew members. D) Time dilation will slow the heartbeats of the crew to a dangerously low rate. E) Atoms and ions in interstellar space will hit the spacecraft like a flood of dangerous cosmic rays.
A juggler throws two balls to the same height so that one is at the halfway point going up when the other is at the halfway point coming down. At that point:
a. Their velocities and accelerations are equal. b. Their velocities are equal but their accelerations are equal and opposite. c. Their accelerations are equal but their velocities are equal and opposite. d. Their velocities and accelerations are both equal and opposite. e. Their velocities are equal to their accelerations.
A particle (charge = +2.0 mC) moving in a region where only electric forces act on it has a kinetic energy of 5.0 J at point A. The particle subsequently passes through point B which has an electric potential of +1.5 kV relative to point A. Determine the kinetic energy of the particle as it moves through point B
a. 3.0 J b. 2.0 J c. 5.0 J d. 8.0 J e. 10.0 J
A diatomic molecule is vibrating in its first excited quantum state above the ground state
In that excited state, its frequency is 2.0 × 1013 Hz. What is the energy of the molecule in this state? (h = 6.626 × 10-34 J • s, h = 1.055 × 10-34 J • s, 1 eV = 1.60 × 10-19 J A) 0.041 eV B) 0.083 eV C) 0.15 eV D) 0.12 eV E) 0.17 eV