1. si la afirmación es verdadera, explicar por que lo es. si es falsa, dar un contraejemplo, es decir un ejemplo que contradiga la afirmación: a. la capacidad térmica de un cuerpo es la cantidad de calor que puede almacenar a una temperatura determinada.

b. una patata envuelta en una hoja de aluminio se cuece en el horno , luego se saca y se quita el aluminio. Este se enfría mucho mas lento que la patata.

ME AYUDNNN POR FAVOR URGENTEEE DOY CORONITAAA Y PUNTOSSS PLI URGENT

Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Select the three ways that the parallel-plate capacitor differs from a car battery.