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let's say you are a police officer, firing a police radar signalthat travels at the speed of light 3.0 x 10 (exponent 8) m/s, theecho is recieved 3.333x 10 (exponenet -6) seconds later, themachine waits 1.728 seconds and fires a second signal. the echo isrecieved in 2.933 x 10 (exponent -6) seconds later find thevelocity of the car in km/hbasically all i need is the formula and explination so i canunderstand how to do this assignment im really,really lost and inthe text book that we have it doesnt explain anything about this..(im in an academic class and our teacher is trying to "prepare" usfor university and is making us use our resources. hopefullysomeone can help me with this questionand one thing i remember is that when changing m/s to km/h you needto divid by 3.6
A solid, uniform disk of radius 0.250 m and mass 48.2 kg rolls downa ramp of length 3.90 m that makes an angle of 14.7° with thehorizontal. The disk starts from rest from the top of theramp.(a) Find the speed of the disk's center of mass when it reaches thebottom of the ramp.1Your response differs from the correct answer by more than 100%.m/s(b) Find the angular speed of the disk at the bottom of theramp.2Your response differs from the correct answer by more than 100%.rad/s
Why are you more stable when riding a bicycle at a faster speed?
(a) You have more mass
(b) The wheels have angular momentum
(c) It's not easier to ride at a faster speed
(d) The bike has more momentum