He force between two long parallel conductors is 15 kg/metre. the conductor spacing is 10 cm. If one conductor carries twice the current of the other, calculate the current in each conductor.

Why do materials absorb some frequencies of electromagnetic radiation and not others?

Which of the following statements is true? A. Minerals can be solids or liquids B. Minerals can be elements or compounds C. Graphite and gold are examples of gemstones D. Triclinic crystals have more right angles than isometric crystals

Xander lit his Bunsen burner. He then reached over the burner to get his chemicals. He performed the lab, but at the end, he dropped a test tube on the ground. He immediately told his teacher, who cleaned it up so he could finish the lab.

You are on a hike in the mountains. You have 3.79 km left to go before your next campsite. The sun will set in 6.93 h. What average speed must you walk to get to camp at sunset? Answer in units of km/h

Some refrigerators use propane as their energy source. What kind of energy do these refrigerators utilize? A. Solar B. Electricity C. Natural gas D. Petroleum

Without the force of friction, people would not be able to walk.

A truck covers 40.0 m in 8.50 s while smoothly slowing down to a final speed of 2.80 m/s. (a) find its original speed. (b) find its acceleration.

The matter that makes up a planet is distributed uniformly so that the planet has a fixed, uniform density.

3. If the potential difference is 120 volts and the resistance is 60 ohms, what is the current?

Which of galileo's observations most strongly supported a heliocentric cosmology? the phases of venus?