The period of the orbit of halley's comet is about 75 years. what is the comet's average distance from the sun? if it comes within 0.35 AU of the sun, what is its maximum distance from the sun in miles?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Atank has a shape of a cone with a radius at the top of 2 m and a height of 5 m. the tank also has a 1 m spout at the top of the tank. the tank is filled with water up to a height of 2 m. find the work needed to pump all the water out the top of the spout. (use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3.)

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)