Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an atom that has two protons, four neutrons, and two electrons. Which model is like Cora’s?


At the center, 2 unmarked red balls are interspersed with 4 blue balls marked with plus signs. A green cloud with 1 concentric white line surrounds the center, with 2 small green balls marked with minus signs on the white line.


At the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 2 small green balls marked with minus signs on the white line.


At the center, 2 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.


At the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.

Answer:

Yeah, it can be yellowish-orange or blue

Explanation:

It depends on the energy level of photons emitted

Answer: yes it can be yellow orange, blue, white

Explanation:

Answer:

48 meters per second

Explanation:

Distance travelled in a velocity - time - graph is the area under the graph. The distance covered in the first 4 seconds of its motion is 4.8 meters

From the question and the given graph, the following parameters are given:

Total distance travelled S = 12m

The total time = 8 s

The velocity (V) of the car = ?

We can get V by using the area of a trapezium formula. That is,

S = 1/2( a + b )V

Where from the graph;

a = 2 and b = 8

Substitute a, b, and S into the above equation

12 = 1/2( 2 + 8 )V

24 = 10V

V = 24/10

V = 2.4 m/s

The shape of the distance covered in the first 4 seconds in the graph is triangle.

Area of a triangle = 1/2 x base x height

where

Area = distance covered

base = time = 4s

height = speed V = 2.4

The formula can be re-written as:

S = 1/2 x t x V

substitute all the necessary parameters into the above formula

S = 1/2 x 4 x 2.4

S = 4.8 m

Therefore, the distance covered in the first 4 seconds of its motion is 4.8 meters

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A substance's potential energy decreases from solid to liquid to gas to plasma in that order. The most potential energy and least kinetic energy would be in the solid state. So, Henry is correct.

Potential energy is a type of stored energy that depends on the relative locations of various system components. A spring's potential energy increases when it is stretched or compressed. The potential energy of a steel ball increases as it is raised above the earth's surface as opposed to when it is brought to the planet.

It can perform more work in the raised position. Potential energy is a system property, not a feature of a single entity or particle. For example, the system made up of Earth and the elevated ball has greater potential energy as they are further apart.

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Hi!

Your answer is Reflection!

Hopefully this helps! Please correct me if im wrong ^^

Answer:

Diffraction of light occurs when a light wave passes by a corner or through an opening or slit that is physically the approximate size of, or even smaller than the light's wavelength

Answer:

In a simple pendulum with no friction, mechanical energy is conserved. Total mechanical energy is a combination of kinetic energy and gravitational potential energy. As the pendulum swings back and forth, there is a constant exchange between kinetic energy and gravitational potential energy.

The relationship between the gravitational potential energy and kinetic energy and mechanical energy should be explained below.

In the case of a simple pendulum that does not contain friction, here the mechanical energy should be conserved. The total mechanical energy comprises of kinetic energy and gravitational potential energy. At the time when the pendulum should swing back and forth so there should be a constant exchange that lies between the kinetic energy and gravitational potential energy.

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Answer:

How reflective the surface is.