What principle explains why lifting heavy objects is easier using ramps?
Answers
The work involved in lifting the heavy object can be describes as:
Work required to lift the object to the same height is independent of the path by which it is taken there.The machines such as ramps do not decrease the work. These help in making our work easier. Due to ramp, we have to push to a longer distance but less effort i.e. less force is required to do the same amount of work.
The force to be exerted in absence of inclined plane is mg ( weight of the object). On the other hand, the force exerted on an inclined plane is reduced by sinθ (F=mg sinθ) value of sinθ lies between 0 and 1.
Hence, it becomes easier to lift a heavy object using ramp.
Answer:
Inclined Plane
Explanation:
An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six classical simple machines.
The basic principle of Inclined pane is as follows
W = F x D ( Force times Distance)
where W shows the word done.
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Evan drew a diagram to illustrate radiation what do the arrows represent A. Gases missing with particles B. liquid moving through a vacuum C. moving Particles D. Electromagnetic waves
Answers
Answer: hydroxyl ion
Explanation:
When base is dissolved in water it dissociate and produce an hydroxyl ion
c. run at lowest speed.
b. run at medium speed.
d. stop immediately
Answers
Jumpering out the resistors in a resistance-controlled three-speed fan will cause the motor to run at highest speed. If resistors are jumpered, the three-speed fan will over speed and probably burns out.
. Calculate the distance between the planes after 6 hours. Give your answer in km, to the nearest km. km
Answers
Answer: 2392 kilometers.
Explanation:
To find the distance between the two aircraft after 6 hours, we can use the Pythagorean theorem because they are moving at right angles to each other (one due south and the other due east). Here's how to calculate it:
First, calculate the distance traveled by each aircraft in 6 hours.
1. Aircraft traveling south:
Distance = Velocity × Time
Distance = 85 m/s × (6 hours × 3600 seconds/hour)
Distance = 85 m/s × 21600 s
Distance = 1836000 meters
2. Aircraft traveling east:
Distance = Velocity × Time
Distance = 71 m/s × (6 hours × 3600 seconds/hour)
Distance = 71 m/s × 21600 s
Distance = 1533600 meters
Now, we have the two sides of a right triangle:
- The southbound distance is 1836000 meters.
- The eastbound distance is 1533600 meters.
We can use the Pythagorean theorem to find the hypotenuse (distance between the aircraft):
Distance = √(southbound distance² + eastbound distance²)
Distance = √((1836000 m)² + (1533600 m)²)
Distance ≈ √(3376416000000 m² + 2352089600000 m²)
Distance ≈ √(5728505600000 m²)
Distance ≈ 2391760.78 meters
Now, let's convert the distance to kilometers:
Distance ≈ 2391.76 kilometers
Rounding to the nearest kilometer, the distance between the two aircraft after 6 hours is approximately 2392 kilometers.
4.7
5.7
Answers
between angle-G, g, k, and 'h'. We don't even know for sure
whether 'h' is on the same planet as the other things. No answer
is possible without seeing the picture.
b. High Renaissance
c. Late Renaissance
Answers
Answer:
The correct answer is option B, High Renaissance
Explanation:
The high renaissance period is the first half of the 16th century which marked its beginning from 1490s and ended by late 15th century. Some of the best known artist of this period were Michelangelo, Raphael, Bramante, Leonardo da Vinci etc. The period of existence of these artist was
a) Leobardo Da Vinci - 1452-1519
b) Michelangelo - 1475-1564
c) Raphael – 1483 -1520
Answer:
The correct answer is option B, High Renaissance
Explanation:
O a. Social media is not a reason some people have negative attitudes
towards their bodies.
O b. Physical fitness is a fad.
O c. You must be an athlete to be physically fit.
Od. Heredity does not control your ability to participate.
Answers
Answer:
A, I think, hope this helps!
Answer:
i think d because some people are talented even though they are suffering