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Agata [3.3K]
3 years ago
6

WHO WANTS BRAINLIEST THEN ANSWER THIS QUESTION

Physics
1 answer:
lozanna [386]3 years ago
6 0

if the velocity of the car reduces from 70km/h to 50km/h then the speed of the car will be equal to the speed of the lorry...

thus the relative velocity will be 0

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The wavelength of a wave is the horizontal distance from a ________ to an adjacent ________.
goldenfox [79]
<span>A. crest, crest

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3 years ago
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Q)How is a conductor different from an insulator. A)A Conductor contains free electrons. B)A conductor contains free protons. C)
I am Lyosha [343]

A conductor contains electrons that are bound so weakly to their atoms
that they can be ripped away with a small voltage, and sent scurrying in
the direction of the higher potential.

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In the illustration, the block on the table is at rest. Then, unbalanced forces act on the block. What is the result?
Ipatiy [6.2K]
D. The block moves to the right. There is more force blowing to the right, so the block will move to the right.

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3 years ago
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if you take one hour drive at an average speed of 65 mph, is it possible for another car with an average speed of 55 mph to pass
SVETLANKA909090 [29]
Nope, this is impossible because in order for a car to pass another, they the 55 mph car would have to be behind the 65 mph car (meaning that starting ahead of the 65 mph doesn't count as pass). Assuming that they both drive for one hour, it is impossible because the first will cover a distance of 65 mi and the second would cover a distance of 55 mi. One is obviously ahead of the other and is therefore impossible for the slow one to pass the first one unless the slow car keeps driving after an hour. In that case, it would take approximately 11 minutes for it to pass the other car. This was found by finding the distance needed to pass the first car : 65 - 55 = 10 mi and converted using 1 hr/ 55 mi = .18181818 hr x 60 min/ 1 hr = 11 seconds
I hope this helps :)
7 0
3 years ago
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A man pushes a grand piano along a level stage with 380 N force that is 15° above the horizontal. The piano
Andreyy89

Answer:1688.393 joules

Explanation:

force along 15°(f) =380N

Φ=15°

Distance=4.6m

Time=9.5s

work=horizontal component force(F) x distance

Horizontal component force=f x cosΦ

Horizontal component of force=380 x cos15

Horizontal component of force =380x0.9659

Horizontal component of force=367.042N

Work=force horizontal component x distance

Work=367.042 x 4.6

Work=1688.393

Work=1688.393 joules

6 0
3 years ago
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