Physics, 08.05.2021 01:00 irelandcrawford5469
In the final situation below, the 12.0kg box has been launched with a speed of 12.0m/a across a frictionless surface. Find the energy stored in the spring.
Answers: 3
Physics, 21.06.2019 22:50
Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object
Answers: 2
Physics, 21.06.2019 23:30
To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?
Answers: 1
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ฯ where l is the length of the string, t is its tension, and ฯ is its linear density.โ (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ฯ are constant) (ii) the tension (when l and ฯ 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 โ f is โ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is โ f is โ (iii) when the linear density is increased by switching to another string df dฯ 0 and ฯ is โ f is โ
Answers: 3
Physics, 22.06.2019 08:50
You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a ร b = 98k. what is the y-component of vector b?
Answers: 1
In the final situation below, the 12.0kg box has been launched with a speed of 12.0m/a across a fric...
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