A stone is thrown horizontally with a speed of 20 m/s from height 100 m above the ground find A. its time of flight
B. horizontal range
C. velocity after 2 second
D. velocity with which it hits the ground.
E. position of stone after 2 seconds​

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

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.