Answer:
m = 7000 - 500 = 6500 g
ρ = m/v = 6500 gm / 500 cm³ = 1.3 g/cm³
The paint brush floats because its density is less than that of the paint and has displaced its weight in the paint.
Explanation:
Answer:
Most asteroids can be found between Mars and Jupiter.
Explanation:
The radial velocity method preferentially detects large planets close to the central star
- what is the Radial velocity:
The radial velocity technique is able to detect planets around low-mass stars, such as M-type (red dwarf) stars.
This is due to the fact that low mass stars are more affected by the gravitational tug of planets.
When a planet orbits around a star, the star wobbles a little.
From this, we can determine the mass of the planet and its distance from the star.
hence we can say that,
option D is correct.
The radial velocity method preferentially detects large planets close to the central star
Learn more about radial velocity here:
<u>brainly.com/question/13117597</u>
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Answer:
-Use of magnet
-Mixing in water
Explanation:
Two ways are;
1) Use of magnet: Nails are made of steel and thus can be attracted by magnets. So when a magnet is put inside the mixture, it attracts the magnet out.
2) Mixing it in water: When it is put in water, the nails will go to the bottom while the saw dust will float on the water.