IP An alpha particle is the nucleus of a atom. (a) How

College Physics 1
Problem 39PE (a) Find the useful power output of an elevator motor that lifts a 2500-kg load a height of 35.0 m in 12.0 s, if it also increases the speed from rest to 4.00 m/s. Note that the total mass of the counterbalanced system is 10,000 kgso that only 2500 kg is raised in height, but the full

Physics: Principles with Applications 7
Romeo is throwing pebbles gently up to Juliets window, and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden 8.0 m below her window and 8.5 m from the base of the wall (Fig. 349). How fast are the pebbles going when they h

Chemistry 11
How many grams of gold (Au) are there in 15.3 moles of Au?

Chemistry: Matter & Change 1
Aluminum hydroxide (Al(OH ) 3) is often present in antacids to neutralize stomach acid (HCl). The reaction occurs as follows: Al(OH ) 3(s) + 3HCl(aq) AlC l 3(aq) + 3 H 2O(l). If 14.0 g of Al(OH ) 3 is present in an antacid tablet, determine the theoretical yield of AlC l 3 produced when the tablet r

Organic Chemistry 9
Do the following electrocyclic reactions take place in a conrotatory or disrotatory manner? Under what conditions, thermal or photochemical, would you carry out each reaction? (a) H H (b) H H

Anatomy & Physiology 1
The cell membrane of a muscle fiber is called ________. a. myofibril b. sarcolemma c. sarcoplasm d. myofilament

Principles of Economics 6
A consumer has income of $3,000. Wine costs $3 per glass, and cheese costs $6 per pound. Draw the consumers budget constraint. What is the slope of this budget constraint?

Principles of Economics 6
Explain one harm associated with unexpected inflation that is not associated with expected inflation. Then explain one harm associated with both expected and unexpected inflation.