Se coloca 1 litro de agua hirviendo a 100°c en una pava de aluminio que estaba a 20°c comprobándose que la temperatura de equilibrio fue de 86°c determinar: cantidad de calor que absorve el aluminio y la masa de la pava.

(ya me dijeron que el dato de 1 litro de agua es una trampa)

ejercicio de carolimetria.

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)

An impulse is the product of the on an object and time during which it is applied