Astick is a connection of two same -diameter metal rod 5 cm , and a length of both stick is 0,6m. the thermal conductivity of the first rod 92 cal /s. m.°c ,
and the second stick 50 cal / s. m.°c . the temperature at the free end of the first rod
100 °c and the free end of the second rod 0 °c , the temperature is kept constant .
determine heat transfer within 5 minutes .

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?

Which radioisotope is used in dating geological formations?