9) How much heat is needed to change 250 g of ice at 0 °C to water at 0 °C ? (Lf(water) = 80 cal/g)

In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.