A man travels 101cm in 15 minutes, if he long for 81 cm and works for 21cm if he
runs for 41cm and walks 61cm his time is
The 15 minutes. Find his furning and walking
speed.
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Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity

What was the first instrument to ever record an earthquake?