- 3. Bec yenoBeka 700 H. Onpegenure ero Maccy . CAenatire pucyHOK u nokakure Bec Tena. AaHo: P=700H gapprox 10(H)/(Kr) m- ? PeuleHue: P=gcdot m m=(P)/(g)=(700H)/(10frac (H)(KT))=70Kr OTBeT: m=70kr
- 2. A certain string has a linear mass density of 0.25kg/m and is stretched with a tension of 25 N. One end is given a sinusoidal motion with frequency 5 Hz and amplitude 0.01 m. At t=0 the end has zero displacement and is moving in the +y direction. i.Find the wave speed.amplitide, angular frequency, period wavelength and wave number. [10m/s . 0.01 m. 31.4/s , 0.2 s, 2 m. 3.14/m] ii. Write a wave function describing the wave. [y=0.01sin(31.4t-3.14x)] iii Find the position of the point at x=0.25m at time t=0.1 second. [0.00707 m] iv. Find the transverse velocity of the point at x=0.25m at time. t=0.1 second. [-0.22 m/s]
- 12. TlepeBecTu 3HaveHue Temneparypbl no ukane Henbcus B ukany bapeHTeúTa no380nger popmyna t_(F)=1,8cdot t_(C)+32 raetc - remneparypa B rpanycax Henbcus, tF - remneparypa B rpaAycax DapeHreMra. CKO/16KMM rpanycam no ukane DapeHreura COOTBeTCTBYeT -16 rpanycoB no ukane Henbcus?
- Question 1 A convective heat transferilis a: heat transfer at a molecular level P Flag question heat exchange between two fluids through a separating wall heat transfer by electromagnetic waves heat exchange between the wall and the fluid washing over it
- 1. A listener is at rest and the source is moving toward him at 30ms^-1 , what is the frequency as heard by the listener?The frequency and speed of the sound is 200Hz and 332ms^-1 [218.87 2. A source is at rest and the listener is moving toward it at 30ms^-1 as heard by the listener?The frequency and speed of the sound is 200 Hz and 332ms^-1 . [218.07 Hz] 3. A source and a listener are moving toward each other with a velocity of 30ms^-1 and 20ms^-1 respectively. What is the frequency as heard by the listener? The frequency and speed of the sound is 200Hz and 332ms^-1cdot [233.11Hz] 4. A source and a listener are moving in same direction with a velocity of 30ms^-1 and respectively; consider listener is following the source. What is the frequency as heard by the listener? The frequency and speed of the sound is 200Hz and 332ms^-1 [206.12 Hz]
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