How do astronomers best learn about distant objects in the universe a. they collect and analyze data from their electromagnetic radiation. b. they analyze rock samples from space probes. c. they study nearby objects and match their properties with those of distant objects.

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Write a polynomial function with the given zeros x= -1,0,2show your work