A student lifts a 2 kg book at point X and transports the book to point Y along the
dotted-line path shown. On the path,
a = 2 meters, b = 10 meters, and c = 2
meters. (Hint: Remember the direction of
force and displacement.)
b
How much work is done by the student?
(b) How much work is done by gravity?

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program