Answer:
Glass is solid.
Explanation:
It is not a liquid or gas.
Answer:
An amorphous solid
Explanation:
since glass is hard it's be a supercooled liquid but it's actually neither a liquid or a solid. It's called an amorphous solid, which is a state somewhere between those two states of matter.
What is the length of the x-component of the vector shown below?
A. 3.2
B.24.7
C. 2.8
D. 5.3
*
Answer:
D
Explanation:
Answer:
5.3
Explanation:
Just took the quiz
Which of the following units is used to express electrical charge?
A: Newton
B: Coulomb
C: Joule
Answer:
B. Coulomb
Explanation:
Plssss help Do you guys have any other more interesting, funny or creative ideas of incline problems than something sliding down an incline?
Which statement best describes the movement of electrical current when a capacitor is used in a circuit?
A. The discharge of a capacitor changes the direction of the current
B. Capacitors prevent current from moving through a circuit
C. Electrical current decreases the storage capacity within the capacitor
D. Electrical current from a capacitor minimizes magnetic fields
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.
You and your lab partner, Mel, are engrossed in a chemistry activity using beans to compute the average atomic mass of an element "beanium". You have three isotopes of beanium to measure. Using a triple beam balance, you find the mass of each isotope three times and then take an average. You and Mel compute an average mass for beanium of 8.93 grams and your percent error is 18%. Your teacher instructs you to try again and you end up with the same results. In fact, no matter how many times you try, your percent error is between 18 - 20%.
What is the MOST LIKELY source of error in this activity?
A) random error: Mel misreads the balance occassionally.
B) random error: You and Mel take turns reading the balance and do not read it to the same accuracy.
C) systematic error: The balance is not calibrated accurately, resulting in inaccurate measurements.
D) systematic error: Every now and then you or Mel stop to chat with your neighbors and lose track of what you are doing.
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
What is the difference between a neutral atom and an ion?
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.
What is an ion?
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:
https://brainly.com/question/1488567
#SPJ2
How often a wave occurs (repeats its back and forth or up and down motion) is the wave's _____________. *
-crest
-frequency
-wavelength
-resting point
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"
If a baseball is thrown straight up into the air, when does it have its greatest amount of gravitational potential energy?
Answer:
it has the highest potential energy when it is at the peak of it's height. why? cause PE = mgh where 'h' is the height. so PE will be maximum at max height!!
Answer:
It is when it is falling down it has its greatest amount of gravitational potential energy
Explanation:
This is because the gravitation of the earth pulls things closer to the earth
What is the mass of an object that has a density of 3.2 g/cm3 and a volume
of 5.5 cm3? (The density of an object has the equation d =m/v.)
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.
Oxygen and other nonmetals are found in which area of the periodic table?
on the left side
on the right side
in the bottom two rows
in the middle section
Answer:upper right hand side i think
Explanation:
Which type of reaction happens when a base is mixed with an acid?
A.metal-base reaction
B.neutralization reaction
C.metal-acid reaction
D.spontaneous reaction
Answer:
Neutralization Reaction
Answer:
B
Explanation:
Usually, when a strong acid and a strong base is mixed together, the pH is neutralized, hence why it's called a neutralization reaction.
Jaipal measures a circuit at 1.2 A and 24 . Using Ohm’s law, what can he calculate for the circuit? current (C) current (I) voltage (V) voltage (A)
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:
what would be the effects of a baseball strike
Answer:
If you get 3 strikes in baseball your out and your batting Turn is Over
Explanation:
The image below shows a model of a plant cell.
All cells need energy to live. How do the organelles in the plant cell above work together to get and use this energy?
A.
Mitochondria take in food from the environment, and the nucleus breaks down this food to release its energy to the cell.
B.
The vacuole takes in energy from the environment, and chloroplasts change this energy into a form the cell can use.
C.
Chloroplasts make food using energy from the Sun, and mitochondria break down this food to release energy for the cell.
D.
The nucleus makes energy from materials in the cell, and the vacuole stores this energy until the cell needs to use it.
Answer: b
Explanation:
Answer:
Correct answer is option C for study island users.
Explanation:
PLZ HELP
A wave has a wavelength of 4.9 m and a velocity of 9.8 m/s. The medium through which this wave is traveling is then heated so that the velocity is doubled.
If the frequency remains constant, what is the wavelength of the heated wave?
2.5 m
9.8 m
14.7 m
19.6 m
Answer: the wavelenght is 9.8 meters
Explanation:
We can use the relationship:
Velocity = wavelenght*frequency.
Initially we have:
wavelenght = 4.9m
velocity = 9.8m/s
then:
9.8m/s = 4.9m*f
f = 9.8m/s/4.9m = 2*1/s
now, if the velocity is doubled and the frequency remains the same, we have:
2*9.8m/s = wavelenght*2*1/s
wavelenght = (2*9.8m/s)*(1/2)s = 9.8 m
Answer:
B on Edge
Explanation:
Took the test
In a collision, a 15 kg object moving with a velocity of 3 m/s transfers some of its momentum to a 5 kg object. What would be the velocity of the 5 kg object after the collision if the 15 kg object is still moving at 1 m/s?
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.
Mechanical energy is the_______
of kinetic energy and potential energy.
HELP ME!!!!
Answer:
The answer is sum!
Explanation:
Looked it up :>
The waves with the LEAST energy have _____ frequencies and _____ amplitudes.
A. low; large
B. low; small
C. high; large
D. high; small
answer is the Low; small ?
the waves have low frequencies and small ??...
A girl on the beach sees 8 waves pass in 4 s. If the wavelength of each
wave 1.2 m, what is the velocity of the waves?
This is for cherylnotcherry
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)
A set of charged plates 0.00262 m apart has an electric field of 155 N/C between them. What is the potential difference between the plates? V
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
Do the most energetic forms of waves have high amplitudes and long wavelengths
Question 2 (1 point)
If an atom has 3 protons, 3 electrons and 2 neutrons, what is the atom's electrical
charge?
positive
negative
neutral
Answer:
neutral
Explanation:
3p - 3e = 0 and that leaves 2 neutrons so it will be neutral
What is the proper way to start a fire?
-Gather small twigs and light them. Then gather larger sticks.
-Gather only kindling to start the fire. Then light your fire.
-Gather more firewood than you think you will use. Then light your fire.
-Gather only the firewood you think you will use. Then light your fire.
Please hurry marking brainliest
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.
Please help. I will give brainliest to first good answer
which statement about valence electrons is true?
A) they are located in the outer energy level of an atom
B) they are potentially involved in chemical reactions
C) they determine whether an element can conduct electricity
D) all of the above
Answer:
The correct answer is A
Answer:
They are the outer shell of an atom, So the most logical would be A.
Explanation:
According to a search i made a while ago about valence electrons, valence electron is an outer shell electron that is associated with an atom.
A 800 kg car is traveling a 4.5 m/s. What is the momentum of the truck?
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
Someone please hellpp!!! Will mark brainliest
Answer:
r=x+y
sorry if its not correct you can delete if you want.
The diagram represents two small, charged, identical metal spheres, A and B, that are separated by a distance of 2.0 meters. If the two spheres were touched together and then separated, the charge on sphere A would be *
q1= -1.6x10^-6C
q2=+1.0x10^-6 C
d=2m
Final answer is -3.0x10^-7 C, but I don't know why it is like that.
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.
Distribution of charge: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:
https://brainly.com/question/13172677?referrer=searchResults
A car accelerated from 0 m/s to 50 m/s in 10 s. What was the average acceleration?
Answer:
in 5 meters
Explanation:
please give me 5 star
Answer:
I want to say 5 meters is your answer
Is gravity constant over the entire earth surface.
Explain why?
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