MATHS GEOMETRY!!! URGENT PLEASE.
A triangle has side lengths 10,17 and 21cm. Find the length of the shortest altitude. And please show working out to help me understand.
sound waves travel faster in humidity than in dry air. But as temperature increases the velocity of sound also increases. So sound travels faaster in hot day than in winter. But during winter there is also presence of humidity in fog. Why doesn't sound travel faster in win...
0.88cm; depth dependence. listen to your prof.
what is the refrevtion of waves? And what are the laws'of refraction? Also about phase change.
1. What are the examples of supersonic waves? 2. What is match cone, match no? 3. Define echo? 4. What is the effect of frequency on the velocity of sound in a gas? 5. Mathematical expression of beats. ''based on wave motion''
The number is 14 more then the number to the sum of 30
i tried this way but answer not coming..... :/ ans is 0.25
a circular ink-blot grows at a rate of 2 sq cm per second. find the rate at which the radius is increasing after (28/11)seconds.
A 2.5 ton truck stops and a 1300 pound car slams the brakes and skids 26 feet and hits the truck at 40 mph pushing the truck a foots length. how fast was the 1300 pound car traveling?
how are longhouses and present day homes alike '