Answer:
0.125
Explanation:
acellus
can anyone help? am i right or is it c?
ASAP pls
The position – time equation for cheetah chasing an antelope is
Xf = 1.6 m + ( 1.7 m/s2 ) t2
What is the initial velocity of the cheetah ?
A) 1.6 m/s
B) 1.7 m/s
C) 0 m/s
If I hold my hand next to a Bunsen burner, what type energy transfer is occurring? Is it Conduction, Convection or Radiation and why do they occur?
Answer:
Radiation, as it is not directly above but it is off to the side
Explanation:
in a system, what is the definition of a process?
Answer:
Processes are all the related activities (parts) inside the system that work together to make it function. ... It's important that processes are effective at what they do so that the system can run efficiently. Processes are the sequence of activities intended to produce a particular result.
Explanation:
Answer:A process is an instance of a program running in a computer. It is close in meaning to task, a term used in some operating system
Which of the following is not a change that occurred to organisms over time in the fossil record?
A. Decrease in in the number of species
B. Greater complexity
C. Increase in size
D. More diversity
Answer:A
Explanation: my teacher told me lol
The option that is not a change that occurred to organisms over time in the fossil record is A. Decrease in the number of species
A fossil record simply refers to the history of the life of the fossils. It means the remains of imprints of the organisms that are from earlier geological periods.
It should be noted that the fossil record is important to archeologists as it helps in placing events in their appropriate eras.
A change that didn't occur to the organisms over time in the fossil record is the decrease in the number of species.
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How does convection play a role in tornadoes?
Answer: The mesocyclone
Explanation: The unsaturated air, if moved upward, will be cooler than the surrounding air and it will sink. ... This convective action (that is, the circulation of air as a result of heat transfer) produces the huge clouds commonly associated with thunderstorms and tornadoes.
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10. What are the only types of passes allowed in floor hockey?
If an object moves 75 m/s in 15 seconds, how far did the object move?
The object moved a displacement of 1125 m.
What is meant by velocity ?Velocity of an object is defined as the time rate of change of its displacement.
Here,
Velocity of the object, v = 75 m/s
Time taken for travelling, t = 15 s
We know that, the velocity is the displacement covered per unit time.
v = d/t
Therefore, the displacement covered by the object,
d = v x t
d = 75 x 15
d = 1125 m
Hence,
The object moved a displacement of 1125 m.
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A force of 1000 N is exerted on a golf ball for 0.005 s. The change in momentum of the golf ball is - a 200,000 kg m//s b 50 kg m//s c 5,000 kg m//s d 5 kg m//s
Answer:
d) 5 Ns
Explanation:
Impulse = Ft = 1,000(0.005) = 5
Do y'all agree with nuclear energy? Why?
During a power outage, people use generators. What does a geneszitor dia?
Converts kinetic energy to electrical energy
Converts kinetic energy to chemical energy
Converts thermal energy to kinetic energy
Converts electrical energy to thermal energy
A student claims that gravitational fields exist between objects that are not in contact with each other. She creates a diagram of two figures. The width of the arrows in Figure A and Figure B represent the strength of the gravitational attraction between two objects.
The student claims the gravitational force is greater between the objects in Figure A. Which argument best supports her claim?
A. The masses of the objects in Figure A are less than the masses of the objects in Figure B.
B. The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.
C. The surface area of the larger object in Figure A is greater than the surface area of the larger object in Figure B.
D. The diameters of the objects in Figure A are greater than the diameters of the objects in Figure B.
Answer:
Option B. The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.
Explanation:
The force of attraction between two masses is given by the following equation:
F = GM₁M₂ / r²
Where:
F => is the force of attraction
M₁ and M₂ => are the masses of the two objects
G => is the gravitational constant.
r => is the distance between the two objects
From the above formula,
The force of attraction (F) is directly proportional to the product of the two masses and inversely proportional to the square of their apart.
This implies that:
1. An increase in the masses of the object will bring about an increase in the force of attraction and a decrease in the masses will leads to a decrease in the force of attraction.
2. An increase in the distance between the two masses will leads to a decrease in the force of attraction and a decrease in the distance between the two masses will lead to an increase in the force of attraction.
Considering the options given in the question above, option B gives the correct answer to the question.
A naval station sees waves with 5.6 meters between crests, and these waves hit the station every 4.25 seconds.
What is the speed of these water waves??
Answer:
the formula v = f×lambda.
v= 4.25× 5.6
therefore speed is
23.8 meters per second
Explain what makes up a circuit .
Explanation:
An electrical circuit needs:
a source of electrical power (this could be a power plant or a battery)
a material along which the electricity can flow (this may be a copper wire)
something to power (this could be a bulb)
The circuit is connected in a loop. Then, the source of power pushes electrons around the wire. It lights the bulb and continues in the circuit until it is broken.
A simple circuit lights one bulb. More difficult circuits might have several switches and loops. This would allow different groups of lights to be turned on or off at the same time.
( I hope this was helpful) >;D
Read more: All in a Circuit - What Makes a Circuit?, Battery Power, How a Battery Works, Flat!, Home Circuits, Conductors and Insulators - JRank Articles https://science.jrank.org/kids/pages/232/All-in-Circuit.html#ixzz6qWd5gxGf
Attempting to both study and watch television is an example of divided attention.
T
F
Answer: True - doing both tasks at once is attempting to do two things at once which means you are dividing your attention.
Answer:
true
Explanation:
What claim can you make about the relationship between kinetic energy and potential energy?
Answer:
The connection between the two is that potential energy transforms into kinetic energy
Explanation:
We know that potential energy is the energy that is stored within an object while kinetic energy is the energy that is in motion.
A candle at left of a double convex lens has a blue line straight from the tip of the its flame to near the top left of the lens and then down and right through a point on a line running through the center of the lens. An orange line from the tip of the lens runs down and right through the center of the lens to intersect the blue line below the centerline of the lens below the centerline. A green line runs down and right from the tip of the flame through a point to the left of the lens on the centerline to the bottom part of the lens and then straight to intersect the blue and orange lines. Where the three lines intersect, a reduced inverted image of the candle is seen. How can the image be described? Check all that apply. smaller than the object real right-side up larger than the object upside down virtual
Answer:
Label A:
✔ virtual image
Label B:
✔ object
Label C:
✔ focal point
Hope this helps!
Based on the information given in the problem, we can conclude that the image formed by the lens is: Reduced in size, Inverted, virtual.
What is lens?A lens is a curved piece of clear material, such as glass or plastic, that can bend (refract) light.
Lenses are commonly used to focus light and create images in optical devices such as cameras, telescopes, and eyeglasses.
Based on the information provided in the problem, we can conclude that the lens's image is:
Because the image is formed by the intersection of the blue, orange, and green lines, which are all smaller than the object, it is reduced in size (the candle flame).Inverted because the image is formed by the intersection of the blue and green lines, which cross above the lens's centerline, resulting in an inverted image.Because the image is formed by the intersection of blue and green lines that do not converge on the same side of the lens as the object, it is virtual. This means that the rays do not converge to form a true image that can be projected onto a screen.Thus, the image can be described as smaller than the object, inverted, and virtual.
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What's the Genotype for these? If your answer is something off-topic I ShAlL rEpOrT iT u.U
Pick any free letter for each trait. For example, "A" for the dominant allele and "a" for the recessive allele for the number of arms. Assuming complete dominance, the genotype for the dominant trait will always have at least one "capital" allele, so a creature with 2 arms would have genotype either AA (homzygous dominant) or Aa (heterozygous), while a creature with the recessive trait of having 4 arms will always be homzygous recessive with genotype aa.
why does a thick glass bottle crack when boiling water is suddenly poured inside it
Answer:
When boiling water is poured into a thick tumbler its inner surface expands. However, due to low thermal conductivity of glass, the expansion of outer surface of the tumbler is quite small. Due to uneven expansion of the outer and inner surfaces, the tumbler breaks.
Explanation:
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Un tren de alta velocidad (TAV) o tren bala es aquel que alcanza velocidades iguales o superiores a 200 km/h. La energía que tiene el tren en su recorrido habitual es: *
Answer:
B. Cinética, debido a que esta energía está asociada con la velocidad que posee el tren.
Explanation:
Un tren de alta velocidad (TAV) o tren bala es aquel que alcanza velocidades iguales o superiores a 200 km/h. La energía que tiene el tren en su recorrido habitual es
A. Cinética, debido a que existen trenes elevados los cuales poseen altura y la altura está asociada con la energía cinética.
B. Cinética, debido a que esta energía está asociada con la velocidad que posee el tren.
C. Rápida, porque la energía cinética es sinónimo de rápido.
D. Potencial, debido a la potencia que tiene el tren para moverse.
Solution:
La energía cinética es la energía contenida en un objeto en movimiento. La energía cinética se puede definir como la cantidad de energía necesaria para que un objeto se acelere desde el reposo hasta su velocidad final.
La energía cinética (KE) viene dada por:
KE = (1/2) * masa * velocidad²
Podemos ver que la energía cinética depende de la masa del objeto y la velocidad del objeto.
El tren de alta velocidad posee energía cinética debido a la velocidad del tren.
Mercury, Mars, and Earth’s moon all show evidence of heavy cratering from meteor impacts while Earth shows much less evidence of meteor impacts. The most reasonable conclusion to make from this data is that the early solar system had a much higher density of rocky material, but–
a) Earth has been resurfaced by ongoing processes.
b) the rocky material was less likely to reach Earth.
c) Earth formed much later, when the solar system had fewer meteors.
d) the protection from impact provided by Earth’s atmosphere is decreasing.
Answer:
D)
Explanation:
How many hydrogen atoms are there in one molecule of PH3?
Answer:
On molecules of PH3, there has to be 3 atoms.
Explanation:
The Element Hydrogen (H) has 3 attoms.
The Element Phosphorus (P) has 1 atom.
These two created into the molecule PH3, would have to have only 3 attoms because they are asking how many hydrogens atoms are in the molecule PH3.
Physics Homework will give Brainliest!
Answer: I
dk what rhe answer is but here is my prediction :)
Explanation:
If the rope is horizontal and the ball's speed is 10 m/s, what is the tension in the ... A 2 kg iron ball is swung in a horizontal circular path at the end of a 1.6 m length of rope. ... Freddie swings a 2 kg stone at the end of a thin rope of length 1.2 m. ... of an automobile tire that turns with a frequency of 11 Hz and has a linear speed ...
How do low energy electromagnetic waves compare with high energy electromagnetic waves? Select all
А Low energy waves have higher crests than high energy waves.
B
Low energy waves have lower frequencies than high energy waves.
С
Low energy waves have higher amplitudes than high energy waves.
D
Low energy waves have higher frequencies than high energy waves.
E
Low energy waves have shorter wavelengths than high energy waves.
F
Low energy waves have longer wavelengths than high energy waves.
Answer:
Explanation:
The different types of radiation are defined by the the amount of energy found in the photons. Radio waves have photons with low energies, microwave photons have a little more energy than radio waves, infrared photons have still more, then visible, ultraviolet, X-rays, and, the most energetic of all, gamma-rays
Two large parallel conducting plates carry charges of equal magnitude and opposite charge. When you place a point charge q = +3.60 nC between the plates, the force on the point charge is 22.0 μN. What is the magnitude of the surface charge density on either plate? Express your answer with the appropriate units.
Answer:
The magnitude of the surface charge density on either plate is approximately 5.41 × 10⁻⁸ C/(m²)
Explanation:
The magnitude of the charge on each of the conducting plates = Equal
The orientation of the charges on each plate = Opposite charges
The magnitude of the point charge placed between the plates = +3.60 nC
The force acting on the point charge, q = 22.0 μN
Therefore, we have;
F = E × q
E = F/q = 22.0 μN/+3.60nC = 6,111.1111 V/m
We have;
[tex]E = \dfrac{\rho }{\epsilon_0}[/tex]
Where;
ρ = The surface charge density
ε₀ = Absolute permittivity ≈ 8.85 × 10⁻¹² C²/(N·m²)
Therefore, we have;
ρ = E × ε₀ = 6,111.1111 V/m × 8.85 × 10⁻¹² C²/(N·m²) = 5.40833332 × 10⁻⁸ C/(m²)
∴ The magnitude of the surface charge density on either plate, ρ ≈ 5.41 × 10⁻⁸ C/(m²).
How does convection play a role in hurricanes
Answer:
Convection is what keeps the hurricane going in till the storm hits land.
Explanation:
Convection is the warm, moist current that rises above sea level and as it cools into water vapor it releases energy which a hurricane runs on. Once the hurricane hits land it continues to lose energy to keep it going because there's no convection from the sea currents rising above sea level to release energy.
Hope this helps.
The frequency will be 6 × 1014 H z of a typical green photon of 500nm emitted by the Sun. a. TRUE
b. FALSE
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A speedboat increases its speed from 14.5 m/s to 29.3 m/s in a distance of 172 m.
(a) Determine the acceleration (in m/s/s) of the speedboat.
(b) Determine the time (in s) over which this acceleration occurs.
Answer:
a. Acceleration, a = 1.88 m/s²
b. Time, t = 7.87 seconds.
Explanation:
Given the following data;
Initial velocity, U = 14.5m/s
Final velocity, V = 29.3m/s
Distance, S = 172m
a. To find the acceleration of the speedboat;
We would use the third equation of motion;
V² = U² + 2aS
Substituting into the formula
29.3² = 14.5² + 2a*172
858.49 = 210.25 + 344a
344a = 858.49 - 210.25
344a = 648.24
a = 648.24/344
Acceleration, a = 1.88 m/s²
b. To find the time;
We would use the first equation of motion;
V = U + at
29.3 = 14.5 + 1.88t
1.88t = 29.3 - 14.5
1.88t = 14.8
Time, t = 14.8/1.88
Time, t = 7.87 seconds.
-
Consider the reaction below:
AgNO3 (aq) + HCl (aq) AgCl (s) + HNO3 (aq)
If the reaction releases 68.0 kJ of energy, how many
kilocalories of energy does it release? (1 cal = 4.184 J) (Round
off decimal to nearest tenths)
Answer: 16.3 kcal
Explanation:
Given that the reaction releases 68 kJ or 68000 J. One cal is 4.184 J. Thus, 68000 J is 16.25 kilocalories.
What is exothermic reaction?An exothermic reaction is the reaction which evolves heat energy to the surroundings. The given reaction is an exothermic double displacement reaction.
The given reaction involves the displacement of nitrate and Cl groups in between silver metal and hydrogen. This reaction releases a heat of 68kJ or 68000 J
given, 1 cal of energy = 4.184 J
hence, 68000 J = 68000/4.184 = 16252 cal
One kilocalorie = 1000 calories
thus, 16252 calories = 16.25 kilocalories.
Therefore, the given reaction, releases 16.25 kilocalories of energy.
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