The number of waves passing the observer per second is:

A) the wavelength in angstroms.
B) the amplitude in nm.
C) the frequency in Hertz.
D) the period in seconds.
E) the energy in milliwatts.


C

Physics & Space Science

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In a spectrum chart (like the one shown in figure Q11.2), the emission lines produced by a quantum harmonic oscillator



A. Get closer together (in energy) as we go to the right.
B. Are evenly spaced (in energy).
C. Get farther apart (in energy) as we go to the right.

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A car traveling at 22 m/s comes to an abrupt halt in 0.1 second when it hits a tree. What is the deceleration of the car?

A) 110 m/s2 B) 220 m/s2 C) 800 m/s2 D) 880 m/s2 E) need more information

Physics & Space Science

A 95 N force exerted at the end of a 0.50 m long torque wrench gives rise to a torque of What is the angle (assumed to be less than 90°) between the wrench handle and the direction of the applied force?

A) 18° B) 14° C) 22° D) 25°

Physics & Space Science

A series LC circuit contains a 100 mH inductor, a 36.0 mF capacitor and a 12 V battery. The frequency of the electromagnetic oscillations in the circuit is

a. 5.73 × 10^?4 Hz. b. 9.55 × 10^?3 Hz. c. 0.442 Hz. d. 2.65 Hz. e. 44.0 Hz.

Physics & Space Science