what is two thirds of 27

50.0 g of HI is injected into an evacuated 5.00-L rigid cylinder at 340 K. What is the total pressure inside the cylinder when the system comes to equilibrium

The peak of intensity for our Sun on a black body curve would be in which of the following wavelength ranges?0.01 - 10nm 10 - 380nm 560 - 600nm 1,000,000 to 100,000,000nm

The diameter of the Moon is 3480 km. What is the surface area of the Moon?

How much thermal energy is Generated? Gravitational Potential Energy 8000 J Kinetic Energy 7000 J Thermal Energy? J Answers 1000 J 2000 J 7000 J 15,000 J

the useful power out of an electric motor is 20w and the total power into the motor is 80w calculate the percentage efficiency of the motor

The force of attraction between two oppositely charged pith balls is 5.3 * 10-6 newtons. If the charge on the two objects is 6.7 * 10-9 coulombs, what is the distance between the two charges? (k = 9.0 * 109 newton·meter2/coulombs2)

To describe velocity you need to know?

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

Halley's Comet appears around the sun about once every 76 years. It passes through the part of its orbit nearest the sun in just a few months but then moves out to great distances and takes more than half a century for the rest of its orbit.

In order to hike around a portion of Lake Allatoona, a tour guide determines that he must take his group 150 m east, 60 m north, then 75 m west.