Russian nesting dolls are an amazing comparison for the strongest magnet in the world, because the magnitis were inserted inside each other. The magnets would be adapted so they could be put together, Because they are closer, the coils of the magnet would be tougher. The magnets would be able to magnetize better.
<u>Answers</u>
<u>part 1</u>
Density of a substance is the ratio of mass of a unit volume of that substance.
Density = mass/volume
volume of a sphere = 4/3× πr³
Volume of the neutron = 4/3 × π × (1×10⁻¹³)³
= 4.18879 × 10⁻³⁹ cm³
mass of a neutron = 1.674929 x 10⁻²⁷ kg
= 1.674929 x 10⁻²⁴ g
density = (1.674929 x 10⁻²⁴)/( 4.18879 × 10⁻³⁹)
= 3.999 × 10¹⁴ g/cm³
Answer to 2 significant figures = 4.0 × 10¹⁴ g/cm³
<u>Part 2</u>
density of neutron star= 4.0 × 10¹⁴ g/cm³
Radius = 0.30 mm = 0.03 cm
volume = 4/3 × π × 0.03³
= 1.13097 × 10⁻⁴ cm³
mass = density × volume
= 4.0 × 10¹⁴ × 1.13097 × 10⁻⁴
= 4.52388 × 10¹⁰ g
Answer to 2 significant figure = 4.5 × 10¹⁰ g
Answer:
This is because animals do not need to store as much water as plants.
Explanation:
Animals generally have smaller vacuoles than plants. Plants have large vacuoles that can occupy a large portion of their cell (up to 30 percent). The major function of the vacuole is to store water and maintain cell turgidity and pressure against the cell wall.
Animals on the other hand do not have a rigid cell wall, rather, they have a flexible cell membrane. As a result of this, they do not need to store water in vacuoles.
Answer:
mass of the other asteroid =
Explanation:
We use the definition for the force between two celestial objects under the action of the gravity they produce using newton's general gravitational constant:
The force between the two asteroids will then be given by:
where G is Newton's gravitational constant, the asterioid's masses are M1 and M2 respectively, and d is the distance between them.
We replace the known values in he equation above, and solve for the missing mass:
Since the units for the given quantities are all in the SI system, our resultant units for the unknown mass of the asteroid will be in kg.
It should be A) Force increases