Problem 4 134. Astronomy About 65 million years ago an aster- oid struck Earth in the area of the Yucatan Peninsula and wiped out the dinosaurs and many other life forms. Judging from the size of the crater and the effects on Earth, the asteroid was about 10 km in diameter (assumed spherical) and probably had a density of 2.0 g/cm³ (typi- cal of asteroids). Its speed was at least 11 km/s. (a) What is the maximum amount of ocean water (originally at 20 °C) that it could have evaporated? Express your answer in kilograms and treat the ocean as though it were fresh- water. (b) If the water were formed into a cube, how high would it be? (See Tables 14-3 and 14-4 as needed.)

JAと 0.72KB/s O ll ۱۰:۲۲ ص ۳۶٪ لا التكليف الثاني ل لفزباء الحراریه - محفوظ A 70 kg person stands moderate so that his body weight is shared equally between the feet. If you know that the distance between his feet is 30 cm and the effect of his weight is in the middle of the distance between his feet prove that the body is balanced - if the person exchanged loading between the feet to be loaded the right foot twice the left calculate the position of the center of gravity of the body •..

Two slabs, each 1 inch thick, each have one surface at 0◦ and the other surface at 100◦. At t = 0, they are stacked with their 100◦ faces together and then the outside surfaces are held at 100◦. Find u(x, t) for t > 0.