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Arte-miy333 [17]
3 years ago
12

Who discovered the x-ray?

Physics
1 answer:
Citrus2011 [14]3 years ago
5 0
<span>Wilhelm Conrad Roentgen discovered the x-ray

</span>
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1. if the work done to move a box to a distance of 6 metres equals 120 joules. calculate the force​
Serga [27]

Explanation:

1. W = F x D

F = W/D

F = 120/6 = 20Newton

2. P. E = mgh

P. E = 1.5x10x2 = 30Joules

3. It means that the energy the body possesses at that point is 20Joules

8 0
3 years ago
Sonia was experimenting with electric charges. She tied two inflated balloons together, held them next to each other, and rubbed
lions [1.4K]

Answer: They will repel each other.

Explanation:

Two inflated balloons when rubbed with woolen cloth will lead to repeal each other because of the similar charges on both the balloons.

Rubbing both the balloons together by the woolen cloth will introduce negative charge in the balloons.

As, we know that the same charges repeal each other both of the balloons with be apart from each other.

This is due to the static electricity, the negatively charged particles jump to the positive one. When balloons are rubbed they become negatively charged.

3 0
4 years ago
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If your runnin at full speed for an average human, and lept over a 10 foot brook would you make it?
Vika [28.1K]
Unless you are a mutant....I don't think you would make it. I'm 5'8" and most people are 6'7" or less. It's bsically impossible to do. :)
7 0
3 years ago
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Martine also has an eraser.it has a mass of 3g,and a volume if 1cm3.what is its density
shtirl [24]

Answer:

3g/cm³

Explanation:

<em>Use the formula:</em>

density = mass ÷ volume

<em>Substitute (plug in) the values:</em>

density = 3 ÷ 1 = 3g/cm³

4 0
3 years ago
A neutral atom of an element has the same number of __________ and ________.
scoray [572]
The answer is protons and neutrons (C)
8 0
3 years ago
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