What is the mechanical advantage of a pulley with 3 support ropes?
Answer:
The mechanical advantage is 3 to 1
Explanation:
A frictionless pulley with three support ropes carries equal tension on each of the ropes thus;
Tension in each pulley rope = T
Total tension in the 3 ropes = 3 × T = 3·T
Direction of the tension forces on each rope = Unidirectional
Total force provided by the 3 ropes = 3·T
Therefore, a force, T, applied at the end of the rope will result in a lifting force of 3·T
Hence, the mechanical advantage = 3·T to T which is presented as follows;
[tex]Mechanical \ advantage = \dfrac{3 \cdot T}{T} = \dfrac{3}{1}[/tex]
The mechanical advantage = 3 to 1.
All air-conditioning units must be grounded electrically to
Answer:
Prevent electrical shock
Grounding is a non current carrying conductor mainly used to guard against hazards due to leakage in electric circuits
Explanation:
The grounding refers to the connection of an electrical equipment exposed metallic parts to the ground to serve as a source of current flow in the event of an insulation failure will cause the fuses to trip thereby isolating or removing electric power from the device
Grounding also prevents the accumulation of static electricity which can be a source of fire in inflammable areas.
Answer?...................
Answer:
The correct option is;
c. Leaving the chuck key in the drill chuck
Explanation:
A Common safety issues with a drill press leaving the chuck key in the drill chuck
It is required that, before turning the drill press power on, ensure that chuck key is removed from the chuck. A self ejecting chuck key reduces the likelihood of the chuck key being accidentally left in the chuck.
It is also required to ensure that the switch is in the OFF position before turning plugging in the power cable
Be sure that the chuck key is removed from the chuck before turning on the power. Using a self-ejecting chuck key is a good way of insuring that the key is not left in the chuck accidentally. Also to avoid accidental starting, make sure the switch is in the OFF position before plugging in the cord. Always disconnect the drill from the power source when making repairs.
Which Battery should be removed first to prevent short circuits?
A seasonal color change helps animals in the Taiga to
Answer:
Evade predators
Explanation:
The taiga forest biome which is located in the subartic region bounded by the tundra and the temperate forests in the North and South respectively, extends across the continents of North America, Europe and Asia forms the most enormous land ecosystem of related plants and animals on Earth
In the taiga, the colors of the furs of some animals change with the season such that they are become obscured to potential predators in the taiga
Animals that are able to have a camouflage that enables them to evade predators include
1) Ermine changes color from dark brown coat in the summer to white in the winter
2) Crossbill changes color from orange-brown in the summer to white in the winter
3) Snowshoe Hare changes color from brown in the summer to white in the winter.
A person from a small town in New Jersey invented many products. One of these products is used in every country in the world. Who is this person?
Answer:
Thomas Edison
Explanation:
American inventor of the Thomas Edison incandescent electric lamp or light bulb in 1878 that changed the idea using fire to electricity for indoor lighting which is now used in every country of the world
In 1876, he set up the Menlo Park, New Jersey where the incandescent electric lamp was invented. The Menlo Park laboratory is also the laboratory where many other of his inventions were made. He has over one thousand US patents in his name
Identify the phase of the design process illustrated in the following scenario, and justify its importance. Kristin has recently designed a hydraulic robot. She is about to visit the site where the robot is currently assembling fragrance bottles; she wants to ensure that it is working correctly and meeting the needs of her client.
Answer:
The design process is at the verify phase of Design for Six Sigma
Explanation:
In designing for Six Sigma, DFSS, is a product or process design methodology of which the goal is the detailed identification of the customer business needs by using measurements tools such as statistical data, and incorporating the identified need into the created product which in this case is the hydraulic robot Kristin Designed
Implementation of DFSS follows a number of stages that are based on the DMAIC (Define - Measure - Analyze - Improve) projects such as the DMADV which stand for define - measure - analyze - verify
Therefore, since Kristin is currently ensuring that the robot is working correctly and meeting the needs of her client the design process is at the verify phase.
Answer:
The correct answer is preventative maintenance. This is an important phase because it is meant to ensure that the design is safe and working effectively. It also may be necessary to change or update parts or make other modifications during this phase.
Explanation:
IM A DIFFERENT BREEED!
Place these events in chronological order. Put the numbers 1-6 next to the
events.
Which source would be the best to base a hypothesis upon
Answer:
A) prior knowledge of the situation
Answer:
the other person was right it is A) prior knowledge to a situation
Explanation:
VICTV
The term "hung jury means
the jurors do not all agree on what the decision should be.
the jurors are not impartial and cannot reach a fait decision.
the jurors did not have to answer questions during the selection process.
the jurors took a very long time to reach a unanimous decision
Mark this and
Answer:
The correct option is;
The jurors do not all agree on what the decision should be
Explanation:
A hung jury is a jury that are unable to reach an agreement on a verdict following a long consideration and debate and cannot come to the consensus requirement or a supermajority required for conviction and cannot reach a verdict.
A hung jury is possible in the common law legal system that have jurors who render verdict.