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 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

y(8) = -1/2 (9.81 * 8 ) = 313.92 m
so is D. 313.6 meters

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

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. businesslady|Points 1133|

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. Expert answered|experto|Points 517|

Weegy: The orbits of planets being elliptical was one the planetary laws developed by Kepler. User: In a practical machine, the power output is _______ the power input.
A. smaller than
B. larger than
C. multiplied by
D. equal to
Weegy: In a practical machine, the power output is smaller than the power input.
Source: User: According to Ptolemy's model of the movement of celestial bodies,
A. the sun is the center of the ... (More)

Weegy: The ratio of output power to input power, in percent, is called: B. EFFICIENCY. User: A naturally occurring force related to two bodies in motion is _______ force.
A. centrifugal
B. gravitational
C. frictional
D. centripetal
Weegy: A naturally occurring force related to two bodies in motion is __ A. gravitational _____ force.
User: If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 ... (More)

There are no comments.