Jim travelled the first 3 hours of his journey at speed of 60 mph and the remaining 5 hours at 24 mph how long is the whole journey in miles

Astring that is fixed at both ends has a length of 1.05 m. when the string vibrates at a frequency of 91.0 hz, a standing wave with five loops is formed. (a) what is the wavelength of the waves that travel on the string? (b) what is the speed of the waves? (c) what is the fundamental frequency of the string?

In a system, when potential energy decreases, then entropy also decreases. true false

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is