A balloon contains 30.0 l of helium gas at 103 kpa.

Greg is boiling water on the stove for some noodles. what object can he safely hold while draining the water from the noodles after they are cooked?

What determines whether or not work is being done?

What causes an electric current in a wire?. A) Electric fields cause atoms to move in the wire ... B) Electrons flow because of electrical attraction and repulsion ... C) Electrons move because of heat ...

A wave has a speed of 123m/s and a frequency of 230 Hz. What is its wavelength?

Gray whales travel down California's coast as they migrate between cool waters off Alaska to the warmer waters along Mexico. In which area do you think more thermal energy would move from the whale to its environment? Explain.

Your spaceship crash-lands on Neptune. On Neptune, there are three different species of beast, each of which, remarkably, resembles a delicious, wholesome dessert back here on Earth.

Why are wind hydroelectic and geothermal energy resources not suitable for providing energy worldwide?

Based on the data thomson collected in his experiments using cathode rays, the concept of atomicc structure was modified. What were the four things validated by his cathode ray expirement?

The light from one end of the Milky Way galaxy takes about 150,000 years to travel to the other end. Which of these statements is correct about the Milky Way galaxy? A: The distance between the two ends of the galaxy is 150,000 light years.

Higher frequency sound wave are perceived as having