Question and answer
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
Get an answer
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|

Question
Asked 1/5/2014 5:41:18 PM
0 Answers/Comments
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
The orbits of planets being elliptical was one the planetary laws developed by A. Ptolemy. B. Brahe. C. Copernicus. D. Kepler.
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 universe. B. planets orbit in circular paths around the earth. C. the earth rotates around the sun. D. the earth rotates around the moon. Weegy: According to Ptolemy's model of the movement of celestial bodies,: C. planets orbit in circular paths around the earth. User: An object has a mass of 120 kg on the moon. What is the force of gravity acting on the object on the moon? A. 196 N B. 1,176 N C. 20 N D. 12.24 N Weegy: C. 196 N User: Oil flows upward in the wick of a lantern because of the liquid property called A. density. B. viscosity. C. meniscusity. D. capillarity. Weegy: Oil flows upward in the wick of a lantern because of the liquid property called A. [ viscosity. 'When fluid is forced through a tube, the fluid generally moves faster near the axis and very slowly near the walls, therefore some stress is needed to overcome the friction between layers and keep the fluid moving. For the same velocity pattern, the stress required is proportional to the fluid's viscosity.' ] User: An object with a mass of 78 kilograms is lifted through a height of 6 meters. How much work is done? A. 47.75 J B. 764.4 J C. 4,586.4 J D. 468 J Weegy: D. [ 4,586.4 J use the formula W = mgs W stands for work done in joules m stands for mass of the object g stands for gravity s stands for the distance the object is lifted W = mgs W = 78kilograms 9.8m/s2 6meters W = 4586.4 J (joules) answer would be 4,586.4 J ] User: A tank with a flat bottom is filled with water to a height of 4 meters. What is the ... (More)
Question
Expert Answered
Asked 1/5/2014 5:44:08 PM
0 Answers/Comments
The ratio of output power to input power, in percent, is called A. efficiency. B. work. C. conductivity. D. horsepower.
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 s, what is the acceleration of the object? A. 2.75 m/s B. 13.58 m/s C. 33 m/s D. 5.42 m/s Weegy: C. 2.75 is the acceleration of the object. SOLUTION: (98 m/s - 65 m/s) / 12s = 33 m/s / 12s = 2.75 m/s^2 User: In which of the following units is acceleration expressed? A. Foot-pounds B. Meters per second squared C. Kilograms D. Newtons Weegy: Acceleration is expressed in: A. meters per second squared. User: What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s? A. 6,000 J B. 5,880 J C. 2,940 J D. 12,000 J Weegy: Answer : C. The kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s is 6,000 J. k.e.=1/2 mv^2 =1/2*30*(20)^2 =15*400 =6000 kg m^2/s^2 =6000J User: A center-seeking force related to acceleration is _______ force. A. centripetal B. frictional C. gravitational D. centrifugal Weegy: A center-seeking force related to acceleration is centripetal force. Source: hyperphysics.phy-astr.gsu.edu/hbase/cf.html User: A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal force on the car is 6,000 newtons. What is the radius of the curve? A. 160 meters B. 16 meters C. 80 meters D. 32 meters Weegy: The answer is D. 80 meters User: The metric unit of force is the A. kilogram. B. gram. C. newton. D. nanometer. Weegy: The metric unit of force is the newton. User: How much time should be allowed ... (More)
Question
Expert Answered
Asked 1/5/2014 5:53:00 PM
0 Answers/Comments
19,702,257 questions answered
Popular Conversations
Theodore Roosevelt became president when William McKinley was ...
Weegy: False. Theodore Roosevelt became president after William McKinley was assassinated.
2/26/2015 7:38:06 AM| 5 Answers
Given: 3x + y = 1. Solve for y.
Weegy: 3x + y = 1; solve for y; y = 1 - 3x User: Given: x + 2y = -6. Solve for y. User: Write the following ...
2/27/2015 1:03:09 PM| 4 Answers
The phase change that is the reverse of sublimation is A. ...
Weegy: Boyle's law states that the volume of a gas is inversely proportional to its pressure if the temperature and the ...
2/26/2015 2:21:23 AM| 3 Answers
whats lush
Weegy: 1+1 = 2 User: whats in a heartbeat
2/26/2015 12:22:58 PM| 3 Answers
A ratio compares two numbers by division. True User: The ratio of ...
Weegy: When ratios are used in comparing units of measure, the units should be the same. User: In writing the ratio ...
2/26/2015 1:31:50 PM| 3 Answers
What is the reciprocal of 3/8? User: what is the reciprocal of 4/15 ...
Weegy: The reciprocal of 4 is 1/4. User: what is the reciprocal 4 2/3 Weegy: The reciprocal of 4 is 1/4. ...
2/27/2015 12:39:39 PM| 3 Answers
Comprehension The questions below refer to the selection “Digging.” ...
Weegy: B) miners User: Comprehension The questions below refer to the selection “Digging.” The father and ...
2/26/2015 6:39:22 AM| 2 Answers
Cephalopods dwell in ___. a. ponds b. oceans c. lakes d. rivers
Weegy: While you may not have heard of the term cephalopod, you have probably heard of at least a couple of the animals ...
2/26/2015 7:17:50 AM| 2 Answers
How can one receive fundamental rights? a. born a citizen c. ...
Weegy: who are you looking for? User: abolished national origins quotas Weegy: The Hart-Celler Act abolished the ...
2/26/2015 7:54:13 AM| 2 Answers
Weegy Stuff
S
1
L
1
L
P
P
L
P
P
P
Points 1099 [Total 16881]| Ratings 0| Comments 1099| Invitations 0|Offline
S
L
P
L
P
P
Points 1063 [Total 7838]| Ratings 0| Comments 1063| Invitations 0|Offline
S
P
C
L
P
L
1
Points 625 [Total 7305]| Ratings 4| Comments 585| Invitations 0|Offline
S
Points 572 [Total 911]| Ratings 5| Comments 522| Invitations 0|Offline
S
1
L
L
Points 435 [Total 7501]| Ratings 1| Comments 425| Invitations 0|Offline
S
Points 221 [Total 366]| Ratings 1| Comments 211| Invitations 0|Offline
S
Points 149 [Total 169]| Ratings 0| Comments 149| Invitations 0|Offline
S
Points 91 [Total 91]| Ratings 0| Comments 91| Invitations 0|Offline
S
Points 47 [Total 47]| Ratings 0| Comments 37| Invitations 1|Offline
S
1
L
1
Points 31 [Total 3441]| Ratings 3| Comments 1| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.