A device has power - 2 D. The device is

a. A convex lens of focal length 50 cm

b. A concave lens of focal length 50 cm

c. A convex lens of focal length 2 m

d. A concave lens of focal length 2 m

Measure of the amount of water vapor in the air

Which phrase best defines a mountain range? a landform with an individual peak a landform with multiple mountain ranges a landform with multiple mountain systems a landform with multiple peaks in the same area

A runner increases her speed from 5 km/hr to 10 km/hr over a period of three hours what is her acceleration?

How many yards are there in 10 meters? (1m = 3.28 ft)

Can you die if you bust a hemorrhoid?

If momentum is conserved in a collision, does this indicate conclusively that the collision is elastic?

The acceleration of gravity means that for each second that passes, falling objects move 9.8 meters. A. True B. False

Explain, using numbered steps, how you could find the volume of a small, irregularly shaped rock.

Which of the following is not a receptor pair according to the opponent process theory? A. red versus green B. yellow versus blue C. black versus white D. yellow versus red

A scientist adds different amounts of salt to 5 bottles of water. He then measures how long it takes for the water to boil. what is the dependent variable in this experiment?