Exercise A string has a mass per unit length of 2.50 g. m-1 and is put under
a tension of 25.0 N as it is stretched taut along the x-axis. The free end is attached to a tuning fork that vibrates at 50.0 Hz,
setting up a transverse wave on the string having an amplitude
of 5.00 mm. Determine the speed, angular frequency, period,
and wavelength of the disturbance.​

True or false: the revolution of the earth creates day and night as it rotates around the sun

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)