Write down the equation giving its position y (+ upward) as a function of time t. assume the object started by being compressed 17cm from the equilibrium position (where y = 0), and released.

write down the equation giving its position ( upward) as a function of time . assume the object started by being compressed 17 from the equilibrium position (where = 0), and released.

y(t)=(0.17m)? cos(2? t0.65s)
y(t)=(0.17m)? sin(2? t0.65s)
y(t)=(0.17m)? cos(0.65s? t)
y(t)=(0.17m)? cos(t0.65s)

part b

how long will it take to get to the equilibrium position for the first time?

express your answer to two significant figures and include the appropriate units.

part c

what will be its maximum speed?

express your answer to two significant figures and include the appropriate units.

An unknown substance has a melting point of 1064 ∘c, is insoluble in water, conducts electricity as a solid, and is hard. given these properties, which of the following are possible identities for the unknown substance? check all that apply. view available hint(s) check all that apply. sio2 f2 au kbr

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 ⇒

What is a carrier wave and how does it affect what you hear on the radio