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Stels [109]
3 years ago
7

Does melting change substances into other substances?

Physics
2 answers:
Shtirlitz [24]3 years ago
7 0

You tell me.

Ice is frozen water.

What substance is melted ice ?

spayn [35]3 years ago
4 0

Answer:

Yes, I think

Explanation:

Melting is a process that causes a substance to change from a solid to a liquid. Melting occurs when the molecules of a solid speed up enough that the motion overcomes the attractions so that the molecules can move past each other as a liquid.

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Would the astronaut fall to the ground more
Softa [21]

Answer:

More quiclky

Explanation:

In Earth, there is a gravitional force. So that forces pushed you down faster.

4 0
2 years ago
Which term describes an area of low density in a longitudinal wave?
LiRa [457]

Answer:

Explanation:

Low density is an area of rarefaction.

6 0
3 years ago
Read 2 more answers
Which waves in the electromagnetic spectrum are considered high energy waves ?​
Rom4ik [11]
Gamma ray and x Ray I’m pretty sure. Because they have the shortest wavelengths but the highest energy wave. Hope this helped :)
5 0
3 years ago
Read 2 more answers
oscillating spring mass systems can be used to experimentally determine an unknown mass without using a mass balance. a student
12345 [234]

Answer:

Mass, m = 6.18 kg

Explanation:

Given the following data;

Frequency, F = 10 Hz

Spring constant, k = 250 N/m

We know that pie, π = 22/7

To find the mass, we would use the following formula;

F = 1/2π√(k/m)

Where;

F is the frequency of oscillation.

k is the spring constant.

m is the mass of the spring.

Substituting into the formula, we have;

10 = 1/2 * 22/7 * √250/m

10 = 22/14 * √250/m

Cross-multiplying, we have;

140 = 22 * √250/m

Dividing both sides by 22, we have;

140/22 = √250/m

6.36 = √250/m

Taking the square of both sides, we have;

6.36² = (√250/m)²

40.45 = 250/m

Cross-multiplying, we have;

40.45m = 250

Mass, m = 250/40.45

Mass, m = 6.18 kg

3 0
3 years ago
The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A?h). A 50 A?h
V125BC [204]

Answer: (A) 780J

(B) 1.89×10^-11L

(C)1.67×10^-4 h

Explanation:

Energy of the battery = IVt

=13×60 = 780J

Heat combustion of

1g of gasoline relax 46000J

Therefore 780J will release 780/46000

= 0.017g

Density = mass/volume

Volume = mass/density

Volume =0.017× 10^-3 / 900

= 1.89× 10^-8 m3

= 1.89×10^-11 litres

P=IVt

t=P/IV

= 450/60×13

1.67×10^-4 hours

5 0
3 years ago
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