Explanation:
Givenmass=3kg
height=12m
and all of them now
gravity=9.8m/S2
required
k.e = ?
solution
k.e=p.e
so p.e=MGH
p.e=MGH
=3kg*9.8m/S2*12m
=352.8kg m2/S2
=352.8 J
so we said p.e=k.e
therefore 352.8 J = k.e
What is Sun flare ?
Investigation about Sun flare from NASA
Answer:
An powerful concentrated outburst of electromagnetic radiation in the Sun's atmosphere is known as a Sun flare. They are common in active regions, and they are typically accompanied by coronal mass ejections, solar particle events, and other solar phenomena.
Standing wave has nodes at the top
true or false
Answer:
false
Explanation: im smart
Suppose that you had an electrically charged stick. If you divided the stick in half, each half would have half the original charge. If you split each of these halves, each piece would have a quarter of the original charge. Can you keep on dividing the charge in this manner forever
Because charge is quantized, the answer is no.
Water flows into a vertical cylindrical tank at the rate of 24 cubic ft per minute. If the radius of the tank is 4 ft, how fast is the surface rising?
per min= 24 cubic ft
radius= 4 ft
to find:how fast the surface rises.
solution:[tex]area = \pi {r}^{2} [/tex]
[tex]a = \pi \times {4}^{2} [/tex]
[tex]a = 50.24 \: {ft}^{2} [/tex]
[tex]v = 24 \: {ft}^{3} [/tex]
[tex] = \frac{24}{50.24} [/tex]
[tex] = 0.48[/tex]
therefore, the rising in the surface area is 0.48 feet per minute.
24 / 50.24 = 0.48 feet per minute
so the answer to your question is 0.48 feet per minute.
hope this helps you
What is happening to the potential energy as the ice is melting
When ice is melting, there is a change in the energies in it. Its potential energy increases, but the thermal kinetic energy or temperature remains constant.
What is Melting?Melting is the process when a solid or liquid changes its state. Melting requires latent heat to convert its phase from solid to liquid or liquid to vapor.
Therefore, when ice is melting, Its potential energy increases.
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a ball on a string is swung overhead in a horizontal circle with a radius of 0.66 m. what speed (in m/s) does the ball need to maintain for there to be a centripetal acceleration of 23 m/s2?
Answer:
The ball is moving in a horizontal circle.
The force acting towards the center of the circle is
F = M a = M * V^2 / R
a = V^2 / R simplifying equation
V = (a / R)^1/2 = (23 / .66)^1/2 = 5.90 m/s
In an internal combustion engine, heat flow into a gas causes it to
.
Answer:
Along path BC of the Otto cycle, heat transfer Qh into the gas occurs at constant volume, causing a further increase in pressure and temperature. This process corresponds to burning fuel in an internal combustion engine, and takes place so rapidly that the volume is nearly constant.
In a car lift, compressed air exerts a force on a piston with a radius of 26.00 cm. This pressure is transmitted to a second piston with a radius of 43.0 cm. a) How large a force must the compressed air exert to lift a 2.33x103 N car? b) What pressure produces this force? Neglect the weight of the pistons.
Pascal's Law
[tex]\tt \boxed{\bold{\dfrac{F_1}{A_1}=\dfrac{F_2}{A_2}}}[/tex]
a. F₁/πr₁²=F₂/πr₂²
F₁/26²=2.33 x 10³/43²
F₁=8.51 x 10² N
b. P = F/A
P = 8.51 x 10²/π26²
P = 0.4 Pa
a 50g sample decays to 6.25 g in 6hrs. what's the half life
Answer:
Nuclear half-life expresses the time required for half of a sample to
Explanation:
401.06
Daniel has been describing situations about being stalked by a government agency that is trying to recover information implanted in his brain. he will also babble incoherently, soil his clothing with excrement, and hold a statue-like pose for hours at a time. daniel can most likely be diagnosed with __________ schizophrenia. a. paranoid b. catatonic c. disorganized d. undifferentiated
He will also babble incoherently, soil his clothing with excrement, and hold a statue-like pose for hours at a time. Daniel can most likely be diagnosed with undifferentiated schizophrenia.
What is the worst type of schizophrenia?
Schizophrenia called hebephrenic is the most serious of all and affects more young individuals, between 15 and 25 years of age. The disorder is marked by symptoms such as disturbed affect, irresponsible and unpredictable behavior, disorganized thinking, and incoherent speech.
Undifferentiated schizophrenia — this is the case for patients who may develop some of the characteristics of the other types, but do not fit neatly into any of them.
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Answer:
undifferentiated schizophrenia
Explanation:
Can someone please answer this, ill give you brainliest Would be very appreciated.
Answer:
Option 3
Explanation:
As the roots of the plant hold soil in place, it helps prevent soil erosion.
The other options are true, but they are not correct explanations as to why plants help prevent erosion.
What could Alex do to make the reaction happen faster than normal?
Answer:
Chris lives farther from the school than Alex lives, and Chris walked to school at a faster rate than Alex walked.
Explanation:
What is the relation between electric intensity dn flux
The relation between the electric intensity and electric flux is that the electric flux is equal to the scalar product of electric flux intensity and vector area.
What is the relation between electric intensity and flux?The electric field is the field, which is surrounded by the electric charged. The electric field is the electric force per unit charge.
The intensity of this electric field is the number of electric field lines which are pass perpendicular to the unit element of fixed area.The flux of this electric field is the number of electric field lines which are pass normally to the fixed area.The electric flux can be given as,
[tex]d\phi =\vec E \;dA\cos \theta[/tex]
When angle is zero,
[tex]d\phi =\vec E \;dA\times1\\d\phi =\vec E \;dA[/tex]
Thus, the total flux is,
[tex]\phi=\oint_{}^{}\vec E.d\vec A[/tex]
Thus, the relation between the electric intensity and electric flux is that the electric flux is equal to the scalar product of electric flux intensity and vector area.
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Find the equivalent resistance of this circuit.
Step-by-step explanation :
Here we just need to see the resistors which are connected in series combination. (Remember that you need not to use the potential difference in this question because we aren't asked to calculate the current).
As we know that,
Rs = R1 + R2 ... Rn>> Rs = 50 + 100
>> Rs = 150Ω
Therefore,
Resistance in series combination is of 150Ω.A cannonball weighs 124.0 N in air, 89.0 N in salt water, and 30.0 N in an unknown liquid, Find the densities of the following: The cannonball, and the unknown liquid
The densities of the cannonball and the unknown liquid are 3.54kg/m³ and 2.686 kg/m³.
What is the buoyant force?When an object is fully or partially submerged in liquid, the vertical upward thrust is acting on the object, this force is called the buoyant force.
Salt Water exerts a buoyant force to the cannon ball = 124−89 = 35N, which equals the weight of water displaced.
The mass of water displaced is
W/g =35/10 =3.5 kg.
Since the density of salt water is 1kg/L, the volume displaced is 3.5L.
Therefore the density of the cannon ball is
=(124/10) /3.5 =3.54kg/L = 3.54kg/m³
The unknown liquid exerts a buoyant force of 124−30=94 N.
The density of this liquid is (94/10) /( 3.5 )=2.686 kg/liter = 2.686 kg/m³
Thus, the densities of the cannonball and the unknown liquid are 3.54kg/m³ and 2.686 kg/m³.
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Compared with the atmosphere of venus, the martian atmosphere has.
Answer:
I think it would be 0.13. I'm not 100% sure.
At approximately what time would a first quarter moon rise?.
Answer:
the internet says it would be about noon
Explanation:
i dont know if its right but if it is could you please give me brainliest
Why is red the last color seen at sunset?
A. It is bent by raindrops.
B. It is bent the most by the air.
C. It is scattered the least by the air.
D. It reflects off the atmosphere.
Answer: Within the visible range of light, red light waves are scattered the least by atmospheric gas molecules. So at sunrise and sunset, when the sunlight travels a long path through the atmosphere to reach our eyes, the blue light has been mostly removed, leaving mostly red and yellow light remaining.
Explanation:
the latent heat of fusion of a substance is the amount of energy associated with doing which of the following to 1 kg of the substance
A. Buring it completely
B. Raising its temperature 1 c
C. Boiling it at its boiling point
D Melting it at its melting point
Answer:Boiling at its boiling point
Explanation:
Can someone please answer this, ill give you brainliest Would be very appreciated.
Answer:
caves
Explanation:
Thermal stress causes the breaking of rocks caused by heating/cooling. You may choose deserts (due to heat) but if you think about it, there are not many rocks present compared to caves where it is more likely.
Explain how to get a positive electric charge
Answer:
An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged
Forces (select all that apply) *
1:make objects move
2:have the unit of Newtons (N)
3:can be positive or negative in value
4:can go in any direction (North South East West)
Explanation:
1, 2,3, and 4 is correct.
Forces is a push or pull on an object. It can move an object.
Forces have a unit of Newton's
Force is a vector so it has direction meaning it can positive or negative, or north, South, East west
what phrase describes scientific law
A phrase which describes a scientific law is: a statement of how volume is related to its temperature.
What is a scientific law?A scientific law is a type of scientific statement and it can be defined as a statement of fact that is generally and universally accepted to be true and verified because it has always been proven and observed to be true.
This ultimately implies that, a statement of how volume is related to its temperature is a phrase which describes a scientific law.
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Hi, I’m a sixth grader that REALLY needs help with her science homework. So if you could please tell me the answers to the questions then that would be great! (By the way the questions are in a random order so if you could tell me which one your talking about, that would be awesome) Thanks again!
Answer:
ok so the first one is (b) the next one is (c)
Explanation:
The mass number of an isotope of uranium is 238, and its atomic number is 92. which symbol best represents this isotope of uranium? subscript 92 upper u. superscript 238 subscript 92 upper u. superscript 92 subscript 238 upper u. superscript 92 upper u.
The symbol that represents the isotope that has a mass number of 238, and an atomic number of 92 is 238 subscript 92 upper u.
What is an isotope?Isotopes are any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.
This means that isotopes possess different mass numbers but the same atomic number.
According to this question, the mass number of an isotope of uranium is 238, and its atomic number is 92. This means that the symbol of this isotope is as follows: 238/92 U.
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Answer:
B. [tex]\frac{238}{92}[/tex] U
Explanation:
edge 2022
Your driver's license is at risk of being cancelled if you: O A. Lied on the license application. O B. Are caught driving under the influence. O C. Cause an accident that injures another person. O D. Have more than three traffic violations in one year
Your driver's license is at risk of being cancelled if you have more than three traffic violations in one year. The correct option is D.
What is driving license?The license by the central government to an individual to travel on road by his own vehicle on terms and conditions to be strictly followed.
When a driver is moving with his vehicle and come across the traffic signal, he must follow them. If he violates the traffic signals more than three times, he will get his license cancelled.
Thus, your driver's license is at risk of being cancelled if you have more than three traffic violations in one year. The correct option is D.
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The block is pulled to a position xi = 6. 20 cm from equilibrium and released. Find the potential energy stored in the spring when the block is 6. 20 cm from equilibrium
The value of potential energy stored in the spring when the block is 6. 20 cm from equilibrium is 1.65 J.
What is elastic potential energy?The elastic potential energy is the energy which is stored in a stretched spring. The elastic potential energy of a spring can be found by the following formula.
[tex]U_s=\dfrac{1}{2}kx^2[/tex]
Here, (k) is spring constant and (x) is the displacement of the spring.
The block is pulled to a position xi = 6. 20 cm from equilibrium and released. Thus,
[tex]x=6.20\rm \; cm[/tex]
Divide with 100 to convert its unit in meter,
[tex]x=0.062\rm \; m[/tex]
Let the value of spring constant is 860 N/m. Thus, put the values in the formula,
[tex]U_s=\dfrac{1}{2}kx^2\\U_s=\dfrac{1}{2}(860)(0.062)^2\\U_s=1.65\rm\; J[/tex]
Thus, the value of potential energy stored in the spring when the block is 6. 20 cm from equilibrium is 1.65 J.
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matter is any thing that has mass and occupies space
Answer:
yes omg u are so handsome
Base your answers to questions 8 and 9 on the information and diagram below and on your
knowledge of physics.
A ray of monochromatic light (f- 5.09 x 10^14 Hz) passes from medium X into air. The angle of
incidence of the ray in medium X is 25°, as shown.
8. Using a protractor, measure and record the angle of refraction in the air, to the nearest degree.
9. Calculate the absolute index of refraction of medium X.
10. Base your answer to the following question on the information below.
A student plucks a guitar string and the vibrations produce a sound wave with a frequency of
650 hertz.
Calculate the wavelength of the sound wave in air at STP.
A ray of monochromatic light passes from medium X into air. The refractive index of medium X is 1.52.
What is Snell's law?It states that the ratio of sine of angle of incidence and angle of refraction is equal to the refractive index of second medium to the first medium.
sini/sinr = n₁/n₂
Given the angle of incidence i = 25 degrees, angle of refraction r =40 degrees, refractive index of air n₁ =1, then refractive index of medium X is
n₂ = 1 x sin 40/sin25
n₂ = 1.52
Thus, the refractive index of medium X is 1.52.
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Orginize it
What category would these go in??
Categorys : Radiation, conduction, and convection