What are the two basic requirements for life to exist?
a. heat and light
b. carbon and water
c. oxygen and carbon
d. light and carbon
e. light and water
b
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Intensity: Calculate the light intensity 1.45 m from a light bulb that radiates 100 W equally in all directions.
A. 3.78 W/m2 B. 4.36 W/m2 C. 47.6 W/m2 D. 54.7 W/m2
A rigid body is rotating counterclockwise about a fixed axis. Each of the following pairs of quantities represents an initial angular position and a final angular position of the rigid body. Which of the sets can only occur if the rigid body rotates through more than 180°?
1.3 rad, 6 rad 2.-1 rad, 1 rad 3.1 rad, 5 rad
The pressure in a gas is the result of the momentum transfer that occurs when the molecules bounce from the walls of the container
Indicate whether the statement is true or false
A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, giving the car a constant deceleration. The car comes to a stop in a distance of 120.0 m
How fast was the car moving when it was 60.0 m past the point where the brakes were applied? A) 22.5 m/s B) 18.4 m/s C) 15.0 m/s D) 12.1 m/s E) 9.20 m/s