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Q: A stone falls from a ledge and takes 8 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall is the ledge? A. 1,254.4 meters B. 78.4 meters C. 39.2 meters D. 313.6
meters
A: y(8) = -1/2 (9.81 * 8 ) = 313.92 m so is D. 313.6 meters
Original conversation
User: A stone falls from a ledge and takes 8 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall is the ledge? A. 1,254.4 meters B. 78.4 meters C. 39.2 meters D. 313.6 meters

Weegy: y(8) = -1/2 (9.81 * 8 ) = 313.92 m so is D. 313.6 meters
Controler|Points 3928|

User: The ability of a material to transfer heat or electric current is called A. insulation. B. convection. C. porosity. D. conductivity.

Weegy: D. conductivity is the ability of a material to transfer heat or electric current.

User: The acceleration of gravity is a constant equal to _______ meters per second squared. A. 7.6 B. 8.4 C. 10.2 D. 9.8

Weegy: 9.8 meters per second squared
Glendepker|Points 10|

User: If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be A. higher than the mercury in the vessel, and shaped like the inside of a bowl. B. higher than the mercury in the vessel, and shaped like the outside of an umbrella. C. lower than the mercury in the vessel, and shaped like the outside of an umbrella. D. lower than the mercury in the vessel, and shaped like the inside of a bowl.

Weegy: *D. higher than the mercury in the vessel, and shaped like the inside of a bowl.
piash|Points 3380|

User: The main difference between speed and velocity involves A. weight. B. gravity. C. distance. D. direction.

Weegy: The main difference between speed and velocity involves D. direction.

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