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Alex
3 years ago
14

Define the nucleus of an atom

Biology
1 answer:
stich3 [128]3 years ago
5 0
The nucleus of an atom is the Central part of the atom, it is made up of nucleons, and is surrounded by the electron cloud
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A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur
mote1985 [20]

<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

w=mg     ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

g=\frac{GM}{r^2}

where, g = acceleration due to gravity = ?m/s^2

G = Universal gravitational constant = 6.67\times 10^{-11}Nm^2/kg^2

M = mass of the planet = 5.97\times 10^{24}kg

r = distance of the person from the planet = 6.38\times 10^6m

Putting values in above equation, we get:

g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2

Putting this value in equation 1, we get:

w=65kg\times 9.782m/s^2=635.83N

Hence, the weight of the person above the surface of a planet is 635.83N.

7 0
3 years ago
Please help this is due soon ​
Bogdan [553]

Explanation:

The large fish will most likely eat most of the white fish, and there will only be gray fish left. Since the large fish can't see the gray fish well, they catch some but quickly starve because of the lack of white fish. In the end, only gray fish are left.

5 0
3 years ago
QUESTION 9
zhannawk [14.2K]
A quadrant streak is the answer
8 0
3 years ago
Tectonic plates are made up of rocks that are part of the?
Solnce55 [7]

Answer:

here ya go

Explanation:

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.

7 0
3 years ago
Which of these are cellular activities that sustain a single-celled organism through its lifetime? Select all that apply. The tr
nika2105 [10]

Explanation:

The transmission of DNA to offspring.

Processes by which individuals produce offspring.

Increases in cell size and volume

3 0
3 years ago
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