A positively-charged object with a mass of 0.178 kg oscillates at the end of a spring, generating ELF (extremely low frequency) radio waves that have a wavelength of 5.04 x 107 m. The frequency of these radio waves is the same as the frequency at which the object oscillates. What is the spring constant of the spring? Number i eTextbook and Media Units

QUESTION 1 Increased of receptor potential(s) leads to of action potential(s). O Frequency; amplitude Amplitude; frequency Amplitude; amplitude Frequency; frequency

Mechanical VWaves MCAS review 1. Which of the following statements describes the motion of air particles as a sound wave moves across a room? A. The air particles move in circles inside the sound wave. B. The air particles move across the room with the sound wave. C. The air particles move back and forth, parallel to the direction of the sound wave. D. The air particles move back and forth, perpendicular to the direction of the sound wave. 2. Which of the following types of waves is longitudinal? B. microwave A. light wave C. radio wave D,sound wave 3. The frequency of a note played on a piano is 262 Hz. Given that the velocity of sound at 20°C is 343 m/s, what is the wavelength of the note? A. 0.25 m B. 0.76 m C. 1.31 m D. 4.05 m 4. The table shows the speed of sound in various substances under different conditions. Speed (m/s) Temperature (°C) Substance State carbon dioxide 280 gas 51 methane 466 41 gas helium 972 gas ethanol 1144 liquid 25 water liquid 1461 liquid 1402 1 lubricating…

Select the correct one.

How would I solve for the amplitude

A boy blows a whistle at a certain distance from a building and hears an echo 2.3 seconds later. He moved 50m towards the building and blows the whistle again and receives an echo 2 seconds later. Calculate I. The boy's original distance from the building II. The speed of sound in air