1) plantee un ejercicio donde de manera experimental se calcule el calor especifico de una moneda de 1000 pesos.(colombianos) 2) realice los cálculos para determinar el calor especifico de la moneda de 1000 pesos.(colombianos)

Where do magnetic lines of force enter earth?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)

A2.50 × 105 w motor is used for 26.4 s to pull a boat straight toward shore. how far does the boat move toward shore if a force of 4.20 × 104 n is applied by the motor?