Why does a transformer require ac?

Introductory Chemistry 5
What is the difference between lone pair and bonding pair electrons?

College Physics 1
Problem 25PE A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0 above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to where it lands?

BSCS Biology: A Molecular Approach 9
How is the heterotroph hypothesis related to evolution?

Campbell Biology 10
Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids. Both digestive processes a. occur inside cells in most animals. b. add a water molecule to break bonds. c. require a low pH resulting from HCl production. d. consume ATP.

Human Anatomy & Physiology 9
Which of the following best defines cellular respiration? (a) intake of carbon dioxide and output of oxygen by cells, (b) excretion of waste products, (c) inhalation of oxygen and exhalation of carbon dioxide, (d) oxidation of substances by which energy is released in usable form to the cells.

Principles of Economics 6
Assume the United States is an importer of televisions and there are no trade restrictions. U.S. consumers buy 1 million televisions per year, of which 400,000 are produced domestically and 600,000 are imported. a. Suppose that a technological advance among Japanese television manufacturers causes th

Experimental Psychology 7
Design a correlation-based study or a quasi-experiment to test each of the following: a. Hot weather is associated with higher rates of violence in the streets. b. Rap music causes people to become more sexist (rather than the other way around). c. Childhood schizophrenia can be predicted from cognit

Plant Systematics 3
What is the difference between a silique and a silicle? What family do they occur in?