The Parker Solar Probe is on its way to the Sun. It is the fastest vehicle humans have built. It will reach a speed of 4.3 x 10^5 miles per hour. At that speed how long would it take to reach the center of our galaxy? Assume straight-line flight from Earth. The earth is 2.5 x 10^4 light years from the center of the Milky Way galaxy. A light year is 5.879 x 10^12 miles. A year is 365.25 days.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point

What characteristics does a earthquake have