(see lecture DE2) In intensive monitoring of a relatively distant galaxy, you discover that it has a Cepheid variable star in it with a period of 30 days. This Cepheid variable star has an average brightness 10 billion (Links to an external site.) times less(!) than your Milky Way Cepheid variable star (the one from part 1). How does this allow you to work out the distance to the galaxy

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?