Why doesn't the principle of mechanical energy conservation hold in situations when friction forces are present?

Why is alternating current more effective at long-distance travel than direct current? The power lines are made out of conductors. Transformers increase or decrease voltage as needed. The AC generator is more efficient. AC has lower voltage than DC.

After a party the host pours the remnants of several bottles of wine into a jug. He then inserts a cork with a 2.25-cm diameter into the jug, placing it in direct contact with the wine.

2. A driver brings a car traveling at 22 m/s to a stop in 2.0 seconds. What is the car's acceleration?

What is most likely the author's motive for writing the article? to get the reader to buy digital products to get the reader to support the conversion from analog to digital to get the reader to raise money for digital research to get the reader to

Which of the following is not a constellation? 1. Orion 2. Ursa Major 3. Scorpius 4. Betelgeuse

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?