Why does alternating current change direction 50 to 60 times per second?
A) because it is produced by a generator that changes current direction as it spins
B) because magnetic fields from the generator attract and repel the current C) because it travels at the speed of light back and forth across the circuit D) because it can only travel a short distance before being attracted back to where it started

What human activity increases beach erosion?

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes