• D= 50 m
• S= 40 m/s
• T= ?

Answer:

neutral

Explanation:

3p - 3e = 0 and that leaves 2 neutrons so it will be neutral

Answer: b

Explanation:

Answer:

Correct answer is option C for study island users.

Explanation:

Answer:

[tex]5.37\times 10^{-4}\ m[/tex]

Explanation:

Scientific notation is used to express a number in the form of [tex]a\times 10^b[/tex]. Here, a is real number and b is integer.

The given number is 0.000537 m

To express it in scientific notation, we must understand that there are 6 numbers after decimal. There are 3 zeroes before 537.

In scientific notation we can write it as :

[tex]5.37\times 10^{-4}\ m[/tex]

Therefore, this is the required answer.  

Answer:

5.37×[tex]10^{-4}[/tex]

Explanation:

A P E X

Answer:

3600 kg m/s

Explanation:

Momentum can be calculate using the following formula:

p=m*v

where p is the momentum in kg m/s, m is the mass in kilograms, and v is the velocity in m/s.

We know the mass of the car is 800 kilograms and the car is traveling at 4.5 m/s. So, m=800 and v=4.5 Therefore, we can substitute 800 for m and 4.5 for v.

p=m*v

p=800*4.5

Multiply

p=3600

The momentum is 3600 kg m/s

Answer: B.

Capacitors prevent current from moving through a circuit 

Explanation:

If a direct voltage is applied on the capacitor, no conduction current flows through the capacitor if its insulating medium is perfect insulator. This is due to the fact that there are no free charge carriers in such medium. Basically the real insulator contains very few charge carriers and therefore a very small leakage current passes in the capacitor depending on the conductivity of the insulator.

If an alternating voltage is applied on the capacitor, a displacement current passes through the capacitor irrespective of the insulating medium. This current is termed also the capacitive current. It flows because of changing electric displacement with time.

Answer:

The mass of an object is 17.6 grams.

Explanation:

We have,

Density of the object is 3.2 g/cm³.

Volume of the object is 5.5 cm³

It is required to find the mass of the object. The density of the object is given by the mass acting per unit its volume. It is given by :

[tex]\rho =\dfrac{m}{V}[/tex]

m is the mass of an object

[tex]m=\rho \times V\\\\m=3.2\ g/cm^3 \times 5.5\ cm^3\\\\m=17.6\ g[/tex]

So, the mass of an object is 17.6 grams.

Answer:

false

Explanation:

momentum = mass x velocity

Answer:

here is your answer..

Explanation:

the concentration of hydrogen ions in solution

Hydrogen ion concentration in a solution is called pH so, option 'D' is the correct answer.

The concentration of hydrogen ions in a solution is measured by its pH, which is a measure of its acidity. Pure water splits into hydrogen and hydroxyl (OH-) ions in roughly equal amounts.

The word pH denotes the concentration of hydrogen ions in a solution, such as what percentage of a solution contains hydrogen ions. The pH scale ranges from 1 to 14, with 1 being the most acidic and 14 being the most alkaline.

Find out more information about 'alkaline'.

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Answer:

C:

Explanation:

either C or A but A seems unlikely after multiple attempts. Although the question doesn't make it clear whether the balance is electric either way it could be wrong in someway and seems to be the most likely.

Answer:

The answer is C

Explanation:

I pretty sure it is correct

Answer:

if you are trying to figure out if it is right. I believe it is right (the answer) but trust your instincts go for it.

Explanation:

The charge on sphere A is -3 × 10⁻⁷C.

According to the question, there are two identical spheres, sphere A and sphere B with charges

q₁= -1.6 × 10⁻⁶C , and

q₂=+1.0 × 10⁻⁶ C respectively separated by a distance of 2m.

Now, the charges are brought in contact with each other. So the total charge on both the spheres when they are in contact would be the sum of the two charges, that is:

q = q₁ + q₂

q =  -1.6 × 10⁻⁶C  + 1.0 × 10⁻⁶ C

q =  -0.6 × 10⁻⁶C, or

q = -6 × 10⁻⁷C

Since the two spheres are identical, when they are separated from each other, the charge is distributed equally on both of them. So, the charge on each sphere is :

Q = q/2

Q = (-6 × 10⁻⁷C)/2

Q = -3 × 10⁻⁷C

Learn more about charge distribution:

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Gravity is often assumed to be the same everywhere on Earth, but it varies because the planet is not perfectly spherical or uniformly dense. In addition, gravity is weaker at the equator due to centrifugal forces produced by the planet's rotation

Answer: 3.6 seconds

Explanation:

The correct speed of the car is 0.069 miles per second.

Hi, to answer this question we have to apply the next formula:

Time = distance / speed rate

Replacing with the values given:

t = 0.25 m/ 0.069 mps =3.6 seconds

It would take the drag racing car 3.6 seconds to complete a ¼ mile straight track.

Feel free to ask for more if needed or if you did not understand something.

Answer: voltage (V)

Explanation:

Hi, in the answer the letter A (1.2 A) stands for Ampere, and the symbol next to the number 24 must be Ω 8 (Ohms)

So, applying Ohm's law:

Voltage (V) =current (I) x resistance (R)

V = I x R

Replacing with the values given;

V = 1.2 A x 24Ω

In conclusion, we can calculate the value of Voltage for the circuit.

Feel free to ask for more if needed or if you did not understand something.

Answer:

voltage

(V)

Explanation:

Answer:

b. an increase in the overall temperature of the Earth

Explanation:

Answer:

an increase in the overall temperature of the Earth

Explanation:

I took the edg test

Velocity = frequency x wavelength

              = [tex]\frac{8}{4}[/tex] x 1.2

              = 0.6 m/s

Answer:

The velocity of wave is 2.4m/s.

Explanation:

First, find the frequency using the formula :

[tex]f = \frac{1}{t} [/tex]

Let t = 4,

[tex]f = \frac{1}{4} [/tex]

[tex]f = 0.25Hz[/tex]

Next, given that each wave is 1.2m and there are 8 waves so the wavelength is :

[tex]λ = 1.2 \times 8[/tex]

[tex]λ = 9.6m[/tex]

Lastly, you have to use velocity formula :

[tex]v = f \times λ \: [/tex]

Let f = 0.25Hz,

Let λ = 9.6m,

[tex]v = 0.25 \times 9.6[/tex]

[tex]v = 2.4[/tex]

(Correct me if I am wrong)

Answer: The potential difference between the plates = 0.4061V

Explanation:

Given that the

Electric field strength E = 155 N/C

Distance d = 0.00262 m

From the definition of electric field strength, is the ratio of potential difference V to the distance between the plates. That is

E = V/d

Substitute E and d into the above formula

155 = V/0.00262

Cross multiply

V = 155 × 0.00262

V = 0.4061 V

The potential difference between the plates is 0.4061 V

Answer:

.4061

Explanation:

acellus

Answer:

The answer is sum!

Explanation:

Looked it up :>

Answer:

B. Coulomb

Explanation:

Answer:

in 5 meters

Explanation:

please give me 5 star

Answer:

I want to say 5 meters is your answer

The key to solve this problem is the conservation of momentum. The momentum of an object is defined as the product between the mass and the velocity, and it's usually labelled with the letter [tex]p[/tex]:

[tex]p=mv[/tex]

The total momentum is the sum of the momentums. The initial situation is the following:

[tex]m_A=15,\quad v_A=3,\quad m_B=5,\quad v_B=0[/tex]

(it's not written explicitly, but I assume that the 5-kg object is still at the beginning).

So, at the beginning, the total momentum is

[tex]p=m_Av_A+m_Bv_B=15\cdot 3+5\cdot 0=45[/tex]

At the end, we have

[tex]m_A=15,\quad v_A=1,\quad m_B=5,\quad v_B=x[/tex]

(the mass obviously don't change, the new velocity of the 15-kg object is 1, and the velocity of the 5-kg object is unkown)

After the impact, the total momentum is

[tex]p=m_Av_A+m_Bv_B=15\cdot 1+5\cdot x=15+5x[/tex]

Since the momentum is preserved, the initial and final momentum must be the same. Set an equation between the initial and final momentum and solve it for [tex]x[/tex], and you'll have the final velocity of the 5-kg object.

Answer:

If one charged object is positive, and the other charged object is negative, then the two objects will attract each other. If both objects are positive, the objects will repeal each other. If both objects are negative, the objects will also repeal each other.

Answer:

r=x+y

sorry if its not correct you can delete if you want.

Answer:

(D) is correct option.

Explanation:

At a particular time, the potential energy of a rock is 500 J and its kinetic energy is 600 J.

It is required to find the mechanical energy of the rock. Mechanical or total energy is the sum of kinetic and potential energy. So,

TE = K+ P

TE = 500 J + 600 J

TE = 1100 J

So, the total mechanical energy of a  rock is 1100 J. Hence, the correct option is (D).

Answer:

1,100

Explanation:

Answer:

a neutral atom has no charge, while an ion does.

Explanation:

cation = positive charge

anion = negative charge

A neutral atom has no charge while an ion has charge  which depends on whether it looses or gains electrons.

An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.

Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.They are produced in the solid or liquid state in the presence of salts when they react with solvents.

Learn more about ions,here:

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#SPJ2

answer is the Low; small ?

the waves have low frequencies and  small ??...

Answer:

Explanation:

STEP 1: Gather Your Tools. There's a bit more to building a great campfire than simply placing a few logs in a heap ... If your site has a fire ring, you'll probably have to push the ash and charcoal from ... (Remember, tinder is the really light, quick burning material.) 1. ... Then build a larger teepee of firewood over the kindling.

Answer: they can not be replicated or repeated.

Explanation:

A historical events are opened for more study and research. So, they can be repeated for more study but with reference to the documents written about that event in a manner in which others are permitted to.

Where as, the conclusions related to historical events are limited to the subjective evaluation based on the different outcomes draw as a result of individual findings.

Answer:

Frequency

Explanation:

The number of times a wave is occurring is called the frequency of a wave. It is also defined as the number of vibrations or oscillations per unit time. It is represented by f or [tex]\nu[/tex] (nu).

Its relation with the wavelength and the speed of a wave is given by :

[tex]\nu =\dfrac{v}{\lambda}[/tex]

Hence, we can say that the correct option is (B) "frequency"