Can you help me please? I'll mark brainest

D. Each element has unique energy levels.

Answer: its d) each element has unique energy levels

Explanation: got it correct

Answer:

I tried and could not understand it sorry

Explanation:

Answer:

V = 0.87 volt

Explanation:

Given that,

Charge, [tex]q=7.3\times 10^{-17}\ C[/tex]

Electric potential energy, [tex]U=6.4\times 10^{-17}\ J[/tex]

We need to find the value of electric potential at a point. The relation is as follows :

[tex]V=\dfrac{U}{q}[/tex]

Where

V is electric potential

So,

[tex]V=\dfrac{6.4\times 10^{-17}}{7.3\times 10^{-17}}\\\\V=0.87\ V[/tex]

So, the value of the electric potential at a point is equal to 0.87 Volts.

Answer:

True

Explanation:

Because that's what the law of inertia does

Answer: i think its c.

The direction of the force vector when the object is located at point c on the circle is represented by the vector in diagram B.

According to the definition of centripetal force:

Centripetal force is the force exerted on an object moving curvilinearly that is pointed in the direction of the object's axis of rotation or center of curvature.

Newton is the SI unit for centripetal force.

Whenever an object moves, the centripetal force is applied perpendicular to that direction. The centripetal force of an item moving in a circular path always operates in the direction of the circle's center, according to Newton's second law of motion.

In this case  when the object is located at point c on the circle, the centripetal force is applied perpendicular to that direction. So, the direction of force vector be towards the center from position c which is presented in diagram B.

Learn more about  centripetal force here:

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Answer: A. 74 Minutes

Explanation: A P E X

Answer:

I'm not entirely sure, but I think gamma rays.

Answer:

B) Its gamma rays. They are the most harmful to body tissues

Answer: it will move to the left

Explanation: i remeber doing this

Answer:

The answer is C

I just took the quiz

The statement (C) atomic identity changes but the total number of protons and neutrons do not is correct.

The addition or deletion of protons to a nucleus is referred to as transmutation. A transmutation occurs when deuterium is converted to helium.

We have a decay equation shown below:

[tex]\rm _{11}^{6}\textrm{C} \rightarrow_{11}^{5}\textrm{B}+_{0}^{+1}\textrm{e}[/tex]

As the one-electron subtraction occurred and atom C becomes atom B so the decay equation is affected by atomic identity, but not by the total number of protons and neutrons.

Thus, the statement (C) atomic identity changes but the total number of protons and neutrons do not is correct.

Learn more about the transmutation here:

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Answer:

Time (minutes) A B

0 48 2

1 43 7

2 42 8

3 35 15

4 30 20

5 23 30

6 17 23

7 19 31

8 14 36

9 10 40

10 9 41

11 11 39

12 5 45

13 11 39

14 10 40

15 8 42

Explanation:

plato

Answer: The infra red waves is located between microwave and visible light based on their WAVELENGTH and FREQUENCY of occurrence.

Explanation:

Electromagnetic waves are those waves that do not require or need a material medium for its propagation, but they are able to travel through a vacuum. They exhibit or show all properties associated or connected with light. They are undeflected in electric and magnetic fields. These electromagnetic waves are arranged in order of their FREQUENCY and WAVELENGTHS which is known as ELECTROMAGNETIC SPECTRUM.

FREQUENCY is defined as the number of cycles which the wave completes in one second and is measured in Hertz(Hz). While WAVELENGTH is defined as the distance between two successive crests or troughs of waves which is measured in meter (m).

The electromagnetic spectrum is made up of the following rays which is arranged from the biggest wavelengths to the smallest:

--> Radiowaves

--> microwave :

--> infrared rays:

--> visible light:

--> ultraviolet rays

--> x-rays and

--> Gamma rays.

According to the arrangement of the spectrum above, the microwave has a higher wavelength and frequency than the infrared rays, while the visible light has a lower wavelength and frequency than the infrared rays.

Answer:

true

Explanation:

Answer:

Simple clocks measure time by counting, quartz crystal vibrations or mechanical pendulum oscillations. Atomic clocks measure the oscillations in electron transitions by the radition emited in the form of microwave or higher frequency electro magnetic waves.

Explanation:

Answer:

2.82 V

Explanation:

v^2 = 2(12) / 3 is the formula

v^2 = 24 / 3

v^2 = 8, then you square v^2 and 8, to remove the ^2

and you got your answer! I believe this is correct, but let me know if it isn't.

Answer:

Wavelength = 0.44 meter

Time period = 0.0013 seconds

Explanation:

Given:

Speed of sound = 330 m/s

Frequency = 750 Hz

Find:

Wavelength

Time period

Computation:

Wavelength = Velocity / Frequency

Wavelength = 330 / 750

Wavelength = 0.44 meter

Time period = 1 / Frequency

Time period = 1/750

Time period = 0.0013 seconds

Answer:

18

Explanation:  

V = voltage

I = current  

R = resistance  

V = IR is the equation to find out the Voltage of an item so if we move around the equation so we are trying to resistance it would become R = V/I.  

V = IR  

R = V/I  

R = 9/0.5  

R = 18

Answer:

breaking apart of atoms of certain elements to release rays of energy or particles.

Atoms are the building blocks of elements. However, some atoms have an excessive number of neutrons or protons in their nuclei. This causes an imbalance in the forces that keep them together, resulting in an excessive amount of internal energy. These atoms are referred to as radioactive or unstable.

hope this is helpful...

The type of energy that an unlit match has is potential energy.

Answer:

Balancing on one finger.

Tossing between hands.

Using a different body part.

Building a tower.

Throwing it high in the air.

Flipping it over.

Switching between fingers.

Going behind the back.

Explanation:

Just stuff I used to do ^^

Answer:

24J

Explanation:

The Work done is FxM

=6x4

=24J

Answer:

Reflective clothing. So vehicles can see them and stuff.

Answer:False.

Explanation: HIV is a viruse that only shows symptoms after a few weeks. in Fact HIV does not show any physical symptoms. So, no you can not tell if someone has or is been infected by HIV by directly looking at them.

Have a Nice Day!!! =)

Answer:

60,000 kgm/s

Explanation:

momentum equation,

momentum = mass × velocity.

mass = 2000kg

velocity = 30m/s

when multipled you get = 60,000 kgm/s

hope it helps. :)

Answer:

a compound

Explanation:

a compound

hope this helps

Answer: The air is compressed after the sound wave passes. 4. The density of air increases and then decreases as the sound wave passes.

Explanation:

Answer:

there is no list of "the following" you might want to re-upload your question.

Answer:

the correct one is B     ₊₁e

Explanation:

In the radioactive emission process there are three fundamental types, enision of alpha particles, emission of beta rays and emission of high energy photons.

In beta particle emission processes, a neutron decomposes, emitting an electron and an antineutrino, so the mass number of the nucleus does not change, but the atomic number increases by one unit.

Another possibility is the emission of a positron (positive charge) plus a neutrino, in this case the atomic mass remains constant and the atomic number decreases by one unit.

The second beta emission process if it describes the situation presented, when reviewing the answers the correct one is B

Answer:

Average speed  = 50 mph

Explanation:

Average speed  = (30 miles + 45 miles + 75 miles)/3 hours = 50 mph