Jaký tlak vyvoláme ve vodě ve válcové nádobě s pístem, když na píst o obsahu průřezu 4 cm2 působíme silou 16 N. Výsledek uveď v kPa. Odpověz: Je tlak ve všech místech nádoby stejný?

Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.