Physics, 10.12.2019 15:31 keiannabmoss
The reaction shown below is used in the production of steel. it is an exothermic reaction. an engineer thinks that by finding the correct catalyst, he can reduce the amount of energy released by the reaction. will his plan have the desired effect? explain your answer. fe3o4(s) + 4c(s) β 3fe(s) + 4co(g
Answers: 2
Physics, 21.06.2019 17:50
The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of ΞΈ if ΞΈ=(3t) rad, where t is measured in seconds.
Answers: 1
Physics, 21.06.2019 20:20
To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b
Answers: 2
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t Ο where l is the length of the string, t is its tension, and Ο is its linear density.β (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and Ο are constant) (ii) the tension (when l and Ο 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 β f is β (ii) when the tension is increased by turning a tuning peg df dt 0 and t is β f is β (iii) when the linear density is increased by switching to another string df dΟ 0 and Ο is β f is β
Answers: 3
Physics, 22.06.2019 12:30
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5Γ103 j and the energy transferred thermally out is 99.4Γ103 j. there are 1.5Γ1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1β2 b. 2β3 c. 4β1 d. 1β2 and 4β1 e. none of the above
Answers: 3
The reaction shown below is used in the production of steel. it is an exothermic reaction. an engine...
Mathematics, 01.04.2020 21:52
Mathematics, 01.04.2020 21:52
History, 01.04.2020 21:52
Mathematics, 01.04.2020 21:52
Mathematics, 01.04.2020 21:52
Mathematics, 01.04.2020 21:52
English, 01.04.2020 21:52
Biology, 01.04.2020 21:52
Mathematics, 01.04.2020 21:52
Mathematics, 01.04.2020 21:52
History, 01.04.2020 21:53
English, 01.04.2020 21:53
Mathematics, 01.04.2020 21:53
Mathematics, 01.04.2020 21:53