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nikdorinn [45]
3 years ago
6

1. Use the diagram to anwser question 1.

Physics
2 answers:
SIZIF [17.4K]3 years ago
7 0
Where is the diagram?
inessss [21]3 years ago
3 0

Answer:

Thank u so much 100% correct

Explanation:the anwser to 24 and 25 is ...The iron filings can be separated with a magnet. The wood chips can be separated by adding water to the water and picking the floating wood chipsfrom the top. The sand can be separated by pouring the water/sand/saltmixture through a coffee filter or a paper towel/There is a chemical change because the liquid water, after passing an electric current, produces hydrogen and oxygen gases. This is a reaction. The molecular component of eater has been broken down into two. These two gases have different structures compared to water.  1000000000000%correct trust me

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A closed system’s internal energy changes by 178 J as a result of being heated with 658 J of energy.
statuscvo [17]
Internal energy of the system changes by ΔE = 178 J.
Heat given to the system = Q = +658 J.

According to the first law of thermodynamics, 
ΔE = Q + W
178 = 658 + W 
∴ W = 178-658 = -480 J

Minus sign indicates that work is done by the system. 
7 0
3 years ago
Read 2 more answers
5. An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg, and
marishachu [46]

Answer:

D. 18.60

Explanation:

By the law of conservation, the momentum is neither loss nor gained but instead transfered. When they crash into each other, and stick, they combine to create a total mass of 215 kg. Since the momentum is transfered, the two objects, combined, have a total momentum of 4000 kg-m/s. We know that momentum equals mass times velocity. You then divide 4000 by 215 and get approximately 18.6 m/s

4 0
3 years ago
Consider the circuit below, which is powered by a 8-v battery. switch s is opened at t = 0 after having been closed for a long t
GrogVix [38]
The battery will be full still a 8v bc of no time comparison
4 0
3 years ago
What is the volume of an object that has a density of 65g/cm3 and a mass of 130g.
lora16 [44]

Density <em>ρ</em> is mass <em>m</em> per unit volume <em>v</em>, or

<em>ρ</em> = <em>m</em> / <em>v</em>

Solving for <em>v</em> gives

<em>v</em> = <em>m</em> / <em>ρ</em>

So the given object has a volume of

<em>v</em> = (130 g) / (65 g/cm³) = 2 cm³

5 0
3 years ago
What is the momentum of a 12 kg condor flying at 6 m/s?
rusak2 [61]

Answer:

72

Explanation:

Formula

p=mv\\=12*6\\=72

5 0
3 years ago
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