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3 years ago

Plzzzz help 50 points thanks Super easy I will mark brainlest

Physics

1 answer:

Vladimir79 [104]3 years ago

8 0

Yeah, which one of the three

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What are each layer on an atom

Zarrin [17]

Protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge).

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3 years ago

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Exercise releases chemicals in our bodies called

chubhunter [2.5K]

Answer:

endorphins

Explanation:

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3 years ago

The gravity tractor, is a proposed spacecraft that will fly close to an asteroid whose trajectory threatens to impact the Earth.

Crazy boy [7]

Answer:

$F_g=461lb_f$

Explanation:

First calculate the mass of the asteroid. To do so, you need to find the volume and know the density of iron.

If r = d/2 = 645ft, then:

$V = \frac{4}{3} \pi r^3$

$V = \frac{4}{3} \pi r^3\\V = 1.124\times10^{9}ft^3\delta_{iron}=m/V=491lb/ft^3m=V\times\delta=5.519\times10^{11}lb$

In order to find force, use Newton's universal law of gravitation:

$F_g=G\frac{m_1m_2}{d^2}$

Where,

G= the gravitational constant:

$G= 1.068846 \times10^{-9} ft^3 lb^{-1} s^{-2}$

$F_g=461lb_f$

4 0

3 years ago

Does the total charge change when we charge an object ?

Maurinko [17]

Yea the charge will change because ur adding more force

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4 years ago

( WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST AND SHOWS WORK) A car weighs 15300 N. What is its mass?

mylen [45]

Answer:

Mass, m = 1561.23kg

Explanation:

Given the following data;

Weight = 15300N

We know that acceleration due to gravity is equal to 9.8m/s²

To find mass;

Weight can be defined as the force acting on a body or an object as a result of gravity.

Mathematically, the weight of an object is given by the formula;

$Weight, W = mg$

Where;

m represents the mass of an object measured in kilograms.

g is the acceleration due to gravity measured in meters per seconds square.

Substituting into the equation, we have;

$15300 = m*9.8$

$m = \frac {15300}{9.8}$

<em>Therefore, the mass of the car is 1561.23 kilograms.</em>

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3 years ago