The springs BA and BC each have a stiffness of

Physics: Principles with Applications 7
The springs of a 1700-kg car compress 5.0 mm when its 66-kg driver gets into the drivers seat. If the car goes over a bump, what will be the frequency of oscillations? Ignore damping.

Fundamentals of Statistics 4
Problem 15AYU Problem DUI Simulator To illustrate the effects of driving under the influence (DUI) of alcohol, a police officer brought a DUI simulator to a local high school. Student reaction time in an emergency was measured with unimpaired vision and also while wearing a pair of special goggles

Myers' Psychology for AP 2
How do psychologists define motivation? From what perspectives do they view motivated behavior?

Physics: Principles with Applications 7
A 75.0-kg firefighter climbs a flight of stairs 28.0 m high. How much work does he do?

Organic Chemistry 3
Draw the product of each reaction. a. CH3NH2 NaBH3CN CHO c. (CH3CH2)2NH NaBH3CN O b. O NH3 NaBH3CN d. O NaBH3CN + NH2

Organic Chemistry 8
Predict all approximate bond angles about each highlighted carbon atom. To make these predictions, use valence-shell electron-pair repulsion (VSEPR) theory (Section 1.4).

Plant Systematics 3
Describe the example of Caytonia and glossopterids as putative angiosperm progenitors, citing evidence for or against this idea

Biology: The Unity and Diversity of Life 15
A massive die-off of lobsters in the Long Island Sound was blamed on pesticides sprayed to control mosquitoes that carry West Nile virus. Why might a chemical designed to kill insects also harm lobsters but have no effect on sea stars?