A dwarf planet has a mass of 0.0026 times that of the Earth and a diameter on average 0.2 times that of the Earth. What is the escape velocity of the dwarf planet?

Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f