1. ¿A qué distancia deben colocarse dos cargas eléctricas de –250 C. y 400 C. para que la fuerza de atracción sea de 100 N?
Datos:
q 1 = - 250 C
q 2 = 400 C
F = 100 N
r = ?

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

Describe cytokinesis in plants and animals. in animals: in plants.

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.