PHYSICS HIGH SCHOOL

Terminal velocity and Inicial velocity they are related???

Answers

Answer 1
Answer: Well the only relation they have is that they are both velocities.

The initial velocity of an object is the velocity it begins moving with. i. e if a ball is thrown its initial velocity is the velocity it has once it leaves the hand.

Terminal velocity is the maximum velocity an object can achieve when it is in free fall. i.e if a bowling ball is dropped from a plane, its velocity will increase until it reaches terminal velocity.

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An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.5 x 10⁻⁷ C/m², and the plates are separated by a distance of 1.7 x 10⁻² m. How fast is the electron moving just before it reaches the positive plate?
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What is the charge of a proton ?

Answers

protons are a subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron.
A proton has a positive charge.

A tennis ball is dropped from 1.16 m above theground. It rebounds to a height of 0.866 m.
With what velocity does it hit the ground?
The acceleration of gravity is 9.8 m/s

Answers

Final answer:

Using the principles of free fall motion, it can be determined that a tennis ball dropped from a height of 1.16 meters would hit the ground with a velocity of 4.8 m/s.

Explanation:

The objective here is to calculate the initial velocity of the tennis ball just before it hits the ground. This is a physics question related to free fall motion. We will use the equation of motion, v^2 = u^2 + 2as, where 'v' is the final velocity, 'u' is the initial velocity, 'a' is the acceleration, and 's' is the distance. In our case, the initial velocity (u) is 0 because the ball is dropped, not thrown downwards.

The acceleration (a) is the acceleration due to gravity, which is -9.8 m/s² (it's negative because it acts downwards). The distance (s) will be the drop height, which is -1.16 m (it's negative because we're considering downwards as negative direction). Therefore, the equation becomes (v)^2 = 0 + 2*(-9.8 m/s²)*(-1.16 m). Solving this we get v = √(2*9.8*1.16) m/s = 4.8 m/s. So, the tennis ball hits the ground with a velocity of 4.8 m/s.

Learn more about Free Fall Motion here:

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a is a circuit that is energized but dose not allow useful current to flow on the circuit because of a break in the current path

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A "open circuit" is one that doesn't permit current to flow because of a break in the path.

The material through which a mechanical wave travels is

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A mechanical wave is a disturbance in matter that transfers energy through the matter.

Final answer:

Mechanical waves require a medium to travel through, such as a solid, liquid, or gas.

Explanation:

Mechanical waves require a medium through which they can travel. The medium can be a solid, liquid, or gas. Examples of mechanical waves include water waves, sound waves, and seismic waves.

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One of the earliest applications of the mass spectrometer involved measuring the atomic masses of neon. Which discovery resulted from this analysis?Particles within atoms can carry electric charges.
Atoms consists of three different kinds of particles.
Many elements have several isotopes.
Ions form when atoms gain or lose electrons

Answers

i will have to agree with her i have been reading online and that is all i found that matches your answer so i say C
I  am pretty sure that it is many elements have several isotopes....but i'm not exactly certain that it is.

Use the drop-down menus to complete the statement about Earth’s magnetism.Earth’s magnetic field is generated in the , which is composed of that is constantly .

Answer: core, iron, churning

Answers

Answer:

The Earth's magnetism is generated in the core, which is composed of iron that is constantly churning

Explanation:

Magnetic fields are produced by charges in motion, therefore by currents.

The outer core of the Earth consists mainly of melted iron that is in constant motion. This iron in motion actually acts as a giant current, and therefore it is responsible for the creation of the Earth's magnetic field.

The magnetic field of the Earth is very weak, in fact its magnitude is on average between 25 and 65 microtesla (for comparison, normal magnets can even produce magnetic fields of a few millitesla).

However, its role is very important for the Earth: in fact, it provides a shield that blocks most of the harmful radiation coming from the Sun.

Answer:

core, iron, churning

Explanation:
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