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zavuch27 [327]
3 years ago
8

Why does the food processor produce sound when its switched on

Physics
1 answer:
dybincka [34]3 years ago
7 0
Because thats the motor working hard to process food
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A 1,800kg rollercoaster is going down a hill with a kinetic energy of 25,000J. What is the velocity of the rollercoaster going d
abruzzese [7]

Answer:

K. E = (mv^2)/2

Explanation:

  1. 25000= (1800× v^2)/2
  2. 25000×2= (1800× v^2)
  3. 50000=1800×v^2
  4. 50000/1800= v^2
  5. 27.77777777= V^2
  6. 5.27038=V

Velocity (V) = 5.270 m/sec

Please mark branliest if you are satisfied with the answer. Thanking you in anticipation.

5 0
2 years ago
About how many weeks does it take the Moon to go from a full Moon phase to a third quarter phase? A. 1 B. 2 C. 3 D. 4
Lostsunrise [7]
The answer is D) About 4.
~Deceptiøn
3 0
3 years ago
What would we observe on earth if the sun’s internal energy source suddenly shut off??
Gennadij [26K]
We would observe that the light went out and the heat turned off.

Since the sun's mass didn't change, the Earth's orbital motion
wouldn't change, but that would not matter any more.
Our continued existence would be just a matter of time, and
not much of it.
8 0
3 years ago
Which map feature best indicates whether two regions have the same elevation?
Bezzdna [24]

Answer:

contour lines

Explanation:

Contour lines is a map feature which help to indicate region of equal height in a map.

In a map, contour lines are usually drawn in irregular circles repeatedly, until the elevations of the region are fully represented.

The inner part of the contour lines usually denote high elevation while the outter contour lines usually denote lower elevation.

Therefore the map feature that best indicates whether two regions have the same elevation is contour lines.

4 0
3 years ago
Read 2 more answers
An object is placed 6.5 cm in front of a converging lens that has a focal length of 14 cm. Which one of the following statements
andreyandreev [35.5K]

Answer:

B) The image is virtual and 12 cm from the lens

Explanation:

u = Object distance =  6.5 cm

v = Image distance

f = Focal length = 14 cm

Lens Equation

\frac{1}{f}=\frac{1}{u}+\frac{1}{v}\\\Rightarrow \frac{1}{f}-\frac{1}{u}=\frac{1}{v}\\\Rightarrow \frac{1}{v}=\frac{1}{14}-\frac{1}{6.5}\\\Rightarrow \frac{1}{v}=\frac{-15}{182} \\\Rightarrow v=\frac{-182}{15}=-12\ cm

Focal length of the lens is -12 cm. The negative sign implies the image is virtual in nature.

6 0
3 years ago
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