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nlexa [21]
2 years ago
6

PLEASE HELP! AWARDING BRAINLIEST!

Physics
2 answers:
yawa3891 [41]2 years ago
8 0

An atom is represented by

_z^AX

here we know that

z = number of protons which gives an idea of positive charge of atom

A = mass number

it is the sum of number of protons and neutrons of an atom which will help us to calculate the mass of the atom

So here mass number A will give us an idea about the mass of atom

so correct answer will be

<em>A) It contains most of the mass.</em>

svetoff [14.1K]2 years ago
7 0

Answer:

The answer is A. It contains most of the mass <3

Explanation:

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An astronaut on Pluto attaches a small brass ball to a 1.00-m length of string and makes a simple pendulum. She times 10 complet
pickupchik [31]

Answer:

The acceleration due to gravity at Pluto is 0.0597 m/s^2.

Explanation:

Length, L = 1 m

10 oscillations in 257 seconds

Time period, T = 257/10 = 25.7 s

Let the acceleration due to gravity is g.

Use the formula of time period of simple pendulum

T = 2\pi\sqrt{\frac{L}{g}}\\\\25.7 = 2 \times 31.4\sqrt{\frac{1}{g}}\\\\g = 0.0597 m/s^2

7 0
3 years ago
How much net force is required to accelerate a 2000 kg car at 3.00 m/s^2
andrezito [222]

The net force required to accelerate a car is 6000 N.

Force is defined as the product of the mass and acceleration of the body. Force is used to changing the velocity that is to accelerate an object or a body of a particular mass. The unit of Force is Newton or kg m/s^2.

The formula used to calculate the net force is :

F = ma

where, F = Force

m = mass = 2000 kg

a = acceleration = 3.00 m/s^2

∴ F = 2000*3

F = 6000 N

Thus, to accelerate the car at 3.00 m/s^2 of mass 2000 kg net force required is 6000 N.

To learn more about force,

brainly.com/question/1046166

6 0
1 year ago
At what distance will the weight of a body be halved , Earth's radius=6.4×10^6
Sholpan [36]

A body of mass m has weight

F = GMm/r²

on the surface of the Earth, where G is the universal gravitational constant, M is the mass of the Earth, and r is it's radius.

If the weight is to be halved, then we have

1/2 F = 1/2 GMm/r² = (1/√2)² GMm/r² = GMm/(√2 r²)

so the distance between the body and the planet's center needs to be

√2 × 6.4 × 10⁶ m ≈ 9.1 × 10⁶ m

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3 years ago
As players speed up, their kinetic energy will?
igomit [66]
Kinetic energy is proportional to the square of the speed. So when anything or anybody speeds up, its kinetic energy increases.
6 0
3 years ago
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MAXImum [283]
Sound would travel 10,540 meters
7 0
3 years ago
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