Two small space probes, 1 and 2, each have a mass of 86 kg. Probe 1 has a speed of 11,000 m/s. What is its momentum?
O A. 128 kgm/s
B. 128 m/s
C. 946,000 m/s
D. 946,000 kg m/s

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion. what is the frequency f of oscillation?