A newly designed analog radio is found to require unusually precise fine tuning of the frequency dial to pick up a certain radio station. 1) To create a less-sensitive dial, the radio engineer should: a. increase the Q (quality factor) of the radio circuit.
b. decrease the Q (quality factor) of the radio circuit.
c. decrease the resistance of the radio circuit.

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ρ where l is the length of the string, t is its tension, and ρ is its linear density.† (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ρ are constant) (ii) the tension (when l and ρ are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is ⇒ f is ⇒ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is ⇒ f is ⇒ (iii) when the linear density is increased by switching to another string df dρ 0 and ρ is ⇒ f is ⇒

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.