Si tiene un cable de cobre de resistividad p de longitud L y area transversal A de esta manera el cable tendra una recistencia R ¿ Que pasaría si se duplica el area tranvesal del cable indica si la recistencia va a aumentar o disminuir en cualquiera de los casos indica cuando cambiará respecto al caso inicial? AYUD ES PARA EL VIERNES​

Infants born with severe respiratory problems are sometimes given liquid ventilation: they breathe a liquid that can dissolve more oxygen than air can hold. one of these liquids is a fluorinated compound, cf3(cf2)7br. the solubility of oxygen in this liquid is 66 mlo2 per 100 ml liquid. in contrast, air is 21 % oxygen by volume. calculate the moles of o2 present in an infant's lungs (volume: 12 ml ) if the infant takes a full breath of air. assume a pressure of 1 atm in the lungs.

2. you__turn left on a red light if you are in the left-most lane of a one-way street, you're turning into the left-most lane of a one-way street, and no nearby sign prohibits the turn.

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen