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kumpel [21]
3 years ago
14

Pitbulllover101

Physics
2 answers:
mafiozo [28]3 years ago
7 0

Some of the heavy particles bounced off the foil, because there are positive particles spread throughout the atom

MissTica3 years ago
4 0

Answer:

Some of the heavy particles bounced off the foil, because there is a dense, positive area in the atom.

Explanation:

In Rutherford experiment following is the observations made by the Rutherford

1). Major part of the alpha particles will go out undeviated which shows that major portion of the atoms vacant or empty space

2). Few part of the alpha particle moves out with deviation in path which shows that electrons moves in different shells and when alpha particles pass through a given electron then it will show the deviation in path

3). very few alpha particles will get deviated by 180 degree and returns to original path which shows the presence of nucleus. So nucleus is made up of positive charge which is concentrated at very small space

so here correct answer would be

Some of the heavy particles bounced off the foil, because there is a dense, positive area in the atom.

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What force is described as the attraction between a sample of matter and all other matter in the universe?
Vinil7 [7]

Answer:

Gravitational Force

Explanation:

Gravitational force also called gravity or gravitation is an attractive force that keeps two objects in space. Gravitational force is an attractive force that tends to pull matters together. Every objects in the universe experience gravitational pull.  Planets, stars, galaxies, are held together by gravity. It is a weak force. The weight of an object is the product of gravitational force acting on its mass.

Newton's Law of Universal Gravitation states the force of attraction between two masses m₁ and m₂ in the universe is directly proportional to the product of their masses and inversely proportional to the square of their distance apart.

                                 F = G\frac{m_{1}m_{2}}{r^2}

Where;

F is the gravitational force,

G is the gravitational constant = 6.67 × 10¹¹ m³/kg/s,

m1 and m2 are the masses of the objects,

r is the distance between the centers of the masses

4 0
3 years ago
sing a rope that will snap if the tension in it exceeds 361 N, you need to lower a bundle of old roofing material weighing 455 N
yaroslaw [1]

Answer:

a)-2m/s^2

b)27.2m/s

Explanation:

Hello! The first step to solve this problem is to find the mass of the block remembering that the definition of weight force is mass by gravity (g=9.8m / s ^ 2)

W=455N=weight

W=mg

W=455N=weight

m=\frac{W}{g} =\frac{455}{9.81}=46.38kg

The second step is to draw the free body diagram of the body (see attached image) and use Newton's second law that states that the sum of the forces is equal to mass by acceleration

a=\frac{T-W}{m} =\frac{361-455}{46.38kg} =-2m/s^2

for point b we use the equations of motion with constant acceleration to find the velocity

Vf=\sqrt{X(2)(a)+Vo^2}

Where

Vf = final speed

Vo = Initial speed =0

A = acceleration =2m/s

X = displacement =6.8m

Solving

Vf=\sqrt{(6.8)(2)(2)+0^2}=27.2m/s

4 0
3 years ago
What happens in terms of energy when a moving car hits a parked car, causing the parked car to move?
meriva
This is an example Newton's Third Law. All the kinectic energy from the moving car transferred the potential energy of the parked car. This potential is not much since the brakes are on (hopefully) and it's not in a non-moving position.
5 0
3 years ago
Read 2 more answers
Which one of the following temperatures (in °C) is equivalent to 294 K?
vaieri [72.5K]

Answer:

21

Explanation: its actually 20.85 but i guess they round to 21

5 0
3 years ago
Pls help i will give u brianliest!
Fofino [41]

Answer:

Explanation:

neautrons and protons

3 0
3 years ago
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