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iVinArrow [24]
3 years ago
8

Help????????????????????

Physics
1 answer:
Elan Coil [88]3 years ago
5 0
A. Six electrons
B. six protons
C. they are composed of two up quarks and one down quark.
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A woman carries a 10kg box up a set of 5m high stairs and then down a 12m long hallway. How much work does she do on the box?
nika2105 [10]

Answer: 1666J

Explanation:

Given that,

Mass of box (m) = 10kg

Total distance covered by box (h)

= (5m + 12m)

= 17m

work done on the box = ?

Work is done when force is applied on an object over a distance. Hence, the magnitude of work done on the box depends on its mass (m), distance covered (h), and acceleration due to gravity (g)

(g has a value of 9.8m/s²

i.e Work = mgh

Work = 10kg x 9.8m/s² x 17m

Work = 1666J

Thus, 1666 joules of work was done by the woman on the box.

7 0
3 years ago
10 POINTS + BRAINLIEST TO FIRST CORRECT ANSWER! :)
enyata [817]

Answer:

The 2nd option

Explanation:

It slows down the transfer of thermal energy from inside to outside the coat.

3 0
3 years ago
Can someone please help me with science.
pav-90 [236]

On the dog's return trip (between <em>t</em> = 10 and <em>t</em> = 12.5 seconds), the slope of the position function is steeper than during the first 5 seconds, which means the dog ran home faster. The only option that captures this is D.

You can check to make sure that the dog indeed runs twice as fast on the return trip. The slope of the position function during the first 5 seconds is

(change in position) / (change in time) = (5 - 0) / (5 - 0) = 5/5 = 1

while during the return trip, it is

(0 - 5) / (12.5 - 10) = -5/2.5 = -2

Ignoring the sign (which only indicates the direction in which the dog was running), we see that the dog's speed on the return trip was indeed twice as high as during the first 5 s.

8 0
3 years ago
A neon light consists of a glass tube with metal wires at each end. When connected to a high-voltage source, the gas glows.
Pavlova-9 [17]


C

Glass is an insulator
4 0
4 years ago
Read 2 more answers
Yo someone help me on dis jawnt rq plzzz!
Phantasy [73]

Answer:

the answer is 45.6 kg = 45600 g

7 0
3 years ago
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