2. Calcular la masa de un cuerpo, si al recibir una fuerza, cuya magnitud de
350 N le produce una aceleración cuya magnitud es de 520 cm/s2. Exprese el
resultado en kg (Unidad de masa del sistema internacional). Identifica los
vectores en el dibujo.

Let f(x) = x4- 8x2 . find the relativeextrema of this function using the second derivative test.

What happens in a global convection cell

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?