A positive test charge of 5.0x10 -6 C is in an electric field that exerts a force of 2.0x10 -4 N on it. What is the magnitude of the electric field at the location of the test charge

Explanation:

I study in astronymy in College I had a question like this.

Long-period comets are set in motion towards the Sun from the Oort cloud by gravitational perturbations caused by passing stars and the galactic tide. Hyperbolic comets may pass once through the inner Solar System before being flung to interstellar space. The appearance of a comet is called an apparition.

Answer:

The two main reasons that your results might not match up each time are uncontrolled conditions and experimental error.

It is a type capacitor is in which two metal plates arranged in such a way so that they are connected in parallel . The potential energy is stored in the capacitor will be 2.7×10⁻⁵.

It is an type capacitor is an in which two metal plates arranged in such a way so that they are connected in parallel and have some distance between them.

A dielectric medium is a must in between these plates. helps to stop the flow of electric current through it due to its non-conductive nature .

The given data in the problem is;

Q is the charge= 1.5 µC

V is the change in voltage across the plates is = 36 V.

U is the potential energy=?

The formula for the potential energy is given by;

[tex]\rm U= \frac{1}{2} \times Q \times V \\\\ \rm U= \frac{1}{2} \times 1.5\times 10^{-6} \times 36 \\\\ \rm U=2.7\times10^{-5}[/tex]

Hence the potential energy is stored in the capacitor will be 2.7×10⁻⁵.

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[tex]\textbf{Use equation of momentum}[/tex]

[tex]p=mv[/tex]

[tex]\text{momentum\ =\ mass x velocity}[/tex]

[tex]\textbf{Substitute in the values}[/tex]

[tex]5000 \times 75 = 375,000 \text{\ kg\ km/hr}[/tex]

[tex]4200 \times 75 = 315,000 \text{\ kg\ km/hr}[/tex]

[tex]\textbf{The\ small\ sports\ car\ will\ have\ the\ most\ momentum.}[/tex]

The resultant force acting on the balloon is 10,400 N.

The resultant force acting on the balloon is calculated by applying Newton's second law of motion as follows;

F = ma

where;

Mass of the helium gas = density x volume

                                       = 0.18 x 3000

                                       = 540 kg

Total mass of the balloon = 500 kg + 540 kg = 1,040 kg

Resultant force = mg

Resultant force = 1040 x 10 = 10,400 N

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Answer:

b) Asthenosphere

Explanation:

The Earths crust is broken into plates. These plates float on the Asthenosphere. This is observed in the diagram.

They float on asthenosphere

Answer: The answer to this question is: They are made from different types of atoms, combined in different ways.

The statement is true for the comparison of the water molecule, H2O, to a carbon dioxide molecule, CO2.

They are made from different types of atoms, combined in different ways.

Therefore the correct answer is option D

A chemical compound is a combination of two or more either similar or dissimilar chemical elements.

For example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.

The assertion is accurate when comparing the molecules of water and carbon dioxide, H2O, and CO2, respectively.

They are composed of several atom kinds that have been assembled in various ways.

Option D is the right response as a result.

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#SPJ2

Answer:

=0.15m

Explanation:

l

C

​

=l

Al

​

ρ

C

​

ρ

Al

​

​

=200∗

3.5∗10

−5

2.65∗10

−8

Answer:

Steel

Explanation:

It can easily join with a magnet as long as u place it close to the magnet

Answer:

Zinc

Explanation:

it is because it is in group 2

Answer:

v = 49.05 m/s^2

Explanation:

Let's use the uniform acceleration equation to find our final velocity.

[tex]v = u + at[/tex]

v = final velocity

u = initial velocity

a = gravitational acceleration

t = time taken

Assuming the rock is at rest initially, u becomes zero.

[tex]v = 0 + 9.81(5)[/tex]

[tex]v = 49.05 m/s^2[/tex]

Answer:

The Galactic Center (or Galactic Centre) is the rotational center, the barycenter, of the Milky Way galaxy. Its central massive object is a supermassive black hole of about 4 million solar masses, which powers Sagittarius A*, a compact radio source which is almost exactly at the galactic rotational center.

Answer:

Earthworms

Explanation:

I hope this answer helps

Answer:

Refractors telescopes utilize specially designed lenses to focus the light on an image. A Reflector telescope uses mirrors, which causes light to reflect at different angles within the optical tube and extends the overall light path.

Answer:

The reflective telescope uses mirrors to catch light and reflect it to the eyepiece. A refractive telescope is kinda' the same except it can focus in on the light.

Explanation:

Answers:

decrease the distance between the objects.

increase the mass of one of the objects

Explanation: I took the test and this was the right answer

Answer:

1.It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.

2.The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei.

3.In nuclear reactions, mass is never conserved—some mass is exchanged for energy and energy for mass. Nuclear reactions take place in an atom's nucleus. In a spontaneous nuclear reaction, such as radioactive decay, mass is "lost" and appears as energy in the form of particles or gamma rays.

4.In a nuclear reaction, mass decreases and energy increases. The sum of mass and energy is always conserved in a nuclear reaction.

5.The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei.

Explanation:

hope it helps

Answer:

Changing the amplitude of a sound wave changes its loudness or intensity.

Explanation:

Constructive interference is what can make a sound louder, destructive interference will make a sound quieter. Two waves that add together may have different frequencies.

Answer:

A little over a second

Explanation:

gravity pulls down on objects at a speed of 9.8 meters a second

A colloid is a combination in which one material is suspended throughout another substance and contains scattered insoluble particles. Blood is a colloid solution.

A colloid is a combination in which one material is suspended throughout another substance and contains scattered insoluble particles. The whole combination is referred to as a colloidal solution.

A colloid contains a dispersed phase a continuous phase. The colloidal mixture must either not settle or settle extremely slowly.

The above property is shown by the blood. Hence blood is a colloid solution.

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Answer:

heterogeneous , suspension

Explanation:  believe me or don't idc

Answer:

Heat energy does not cool. Objects cool. Energy is not an object. Now, what happens when an object cools is that it gives off some of its thermal energy by one or more mechanisms: radiation, conduction, or convection. In radiation the energy escaped the object as electromagnetic waves - you see the red hot poker slowly dim as it cools, in conduction the energy is transferred Mechanically by the atoms of the hot object being in physical contact with those of the cool object and in convection the hot material moves to a cooler region where it gives up its heat energy by either radiation or conduction.

Explanation:

A unit length of the solid will expand in length by a fraction 1.0 × 10^-5 of the original per kelvin rise in temperature

Answer:

Explanation:

Modern technology such as chemical fertilisers, pesticides, herbicides, modern agricultural machinery, artificial selection... have been used to increase food production. Development and use of chemical fertilisers on farm land à boots levels of nutrients in the soil, increasing crop yields.

Answer:

9.62 minutes 0r 0.16 of an hour

Explanation:

Speed = distance/time

300mph = 48.1 m/t

xt

300t = 48.1

÷300

t = 48.1/300

t = 0.16033333333 hr

0.16033333333 x 60 = 9.62 minutes

60 minutes in an hour

9.62/60= 0.16033333333 hr

So, around 10 minutes.

Hope this helps!

Answer:

sound is made up of vibrations or sound waves that we can hear these sound waves are formed by objects

Answer:

Sound wave consists to vibrating particles.These knock into other particles causing them to vibrate,and so the sound can travel away from the source.You can hear sound because the vibration in the air cause your ear drums to vibrate this vibration is converted into signals which travel down a nerve to your brain.

Explanation:

hpe its help

Answer:

the 2nd one

Explanation:

The digestive system of most flatworms is incomplete, having an aperture called the "mouth" that is also utilized to remove digestive system wastes.

The primary area of the brain she is using is called the frontal cortex. It works combined with the hippocampus.

The frontal cortex or frontal lobe refers to a region of the cerebral cortex in the brain, which can be divided into the medial and lateral frontal cortex.

The frontal cortex is involved in major executive functions including, among others, cognitive skills, working memory, etc.

The frontal cortex works combined with the hippocampus to solve arithmetic mathematical problems.

Learn more about the frontal cortex here:

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Answer:

A

Explanation:

Voltage, V = Current, I x Resistance, R  (V is directly proportional to I where R is constant of proportionality)

This means that when Voltage is increased, Current increases and when voltage is decreased, current decreases (and the inverse is true). Through all this though, resistance remains constant regardless.