La pressió recomanada per a les rodes d'un camió són, aproximadament, de 7 bars per a les del davant i de 6 bars per a les del darrere ( els valors poden variar segons la grandària del vehicle). En canvi, en el cas dels cotxes, valor oscil·la entre 2,6 i 2,3 bars, respectivament. Per què hi ha aquesta diferència?

In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.