Determine el valor de la potencia electrica que experimenta un circuito el cual se somete a 120 voltios emitidos por accion de las cargas electricas que viajan a taraves de el y que experimentan 4 amperios de intensidad, durante todo el trayecto del mismo

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?

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

When an object is heated it contracts. a. true b. false