Physics, 11.10.2020 22:01 sierralynnbaldp16d4b
1. A student places a block on a table and hangs one mass from the block. The student lets the block go and
observes the block accelerate toward the end of the table where the mass was located. The student then
places the block on the table and hangs a second, larger mass from the opposite end of the block. The block accelerates in the opposite direction from the first trial. What does this experience demonstrate?
block accelerates in the opposite direction from the first trial. What does this experiment demonstrate?
Answers: 1
Physics, 22.06.2019 06:00
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 ⇒
Answers: 3
Physics, 22.06.2019 14:20
How many atoms of nitrogen are in the chemical formula ni(w on
Answers: 1
Physics, 23.06.2019 06:10
Question 1(multiple choice worth 2 points) in order to be considered work, the components that must be present are • a force and a movement in the same direction as the force an action which causes movement and an opposite reaction an action which causes no movement or reaction a force and a movement in the opposite direction of the force
Answers: 1
1. A student places a block on a table and hangs one mass from the block. The student lets the block...
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