In the arrangement shown in the figure below, an object of mass m = 4.0 kg hangs from a cord around a light pulley. The
Posted: Sat Jul 02, 2022 7:09 pm
- In The Arrangement Shown In The Figure Below An Object Of Mass M 4 0 Kg Hangs From A Cord Around A Light Pulley The 1 (105.16 KiB) Viewed 47 times
In the arrangement shown in the figure below, an object of mass m = 4.0 kg hangs from a cord around a light pulley. The length of the cord between point P and the pulley is L = 2.0 m. (Ignore the mass of the vertical section of the cord.) Vibrator P L m (a) When the vibrator is set to a frequency of 130 Hz, a standing wave with six loops is formed. What must be the linear mass density of the cord? kg/m (b) How many loops (if any) will result if m is changed to 144 kg? (Enter 0 if no loops form.) loops (c) How many loops (if any) will result if m is changed to 14 kg? (Enter 0 if no loops form.) loops
Sweating is one of the main mechanisms with which the body dissipates heat. Sweat evaporates with a latent heat of 2,430 kJ/kg at body temperature, and the body can produce as much as 1.7 kg of sweat per hour. If sweating were the only heat dissipation mechanism, what would be the maximum sustainable metabolic rate, in watts, if 78% of the energy used by the body goes into waste heat? W Need Help? Read It