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Andreas93 [3]
2 years ago
13

A dentist holds a small mirror 1.9

Physics
1 answer:
nata0808 [166]2 years ago
8 0

Answer:

follow me for legitimate answer… oh? U don’t like the feeling of people stealing ur points huh?! Well theirs a taste of your own medicine

Explanation:

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a 1000 foot spool of bare 12-gauge copper wire weighs 19.8 pounds. How much will 18 inches of the wire weigh, in ounces?
Stella [2.4K]

Answer:

0.4752 oz.

Explanation:

Length = 1000 ft

Converting ft to inches,

12 in = 1 ft

1000 ft = 1000 * 12

= 12000 in

0.05082 in = 0.12908 cm

Mass = 19.8 lb

Converting lb to oz,

1 ounce = 0.0625 lb

1 lb = 1/0.0625 oz

19.8 lb = 1/0.0625 * 19.8

= 316.8 ounce

Since, 12000 in of copper wire weighs 316.8 ounces.

Therefore, 1 in will weigh = 316.8/12000

= 0.0264 oz

18 in = 0.0264 * 18

= 0.4752 oz.

6 0
3 years ago
A car traveling at a speed of 13 meters per second accelerates uniformly to a speed of 25 meters per second in 5.0 seconds.
Vlad1618 [11]
Since car is accelerating uniformly that means we it is accelerating at constant rate if you can say that way. To find its acceleration all we have to do is find difference between v1=13 m/s and v2 = 25m/s   and divide it by interval that car is taking to accelerate.

a = (v2-v1)/t = 2,4m/s^2

since car is accelerating at constat rate and truck covers same distance as car needs to accelerate from 13 to 25m that means that we can say that in that period truck travelled at cars average speed.

Vtruck = (v1 + v2)/2 = 19m/s
4 0
3 years ago
You have learned of two fundamental units that are not vector quantities. Which are they?
Anna35 [415]
Time and distance as they only have magnitude not direction
7 0
3 years ago
Which statements describe sedimentary rock? Check all that apply.
Vedmedyk [2.9K]

I don't know the choices but...

Answer:

Sedimentary rock is a rock formed underground, usually under a source of water too. The rock is made up of smaller rock that, over the years, fused together and solidified.

4 0
3 years ago
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Heterogeneous mixtures have:
Nady [450]
Different substances and sand and suger an have more than one phase
8 0
3 years ago
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