Answer: the object with less mas will move faster than the other object.
Explanation: Let's do a simplification of this case, I will only use newton's second law, this law says F = ma
where f is force, m is mass and a is acceleration.
Then, if in bot objects the force is the same, let's call it F, we have:
F = 100kg*a1
and
F = 1kg*a2
now let's isolate the accelerations:
a1 = F/100kg
a2 = F/1kg
here we can see that a2 is bigger than a1, this means that the object with less mass has a bigger acceleration, then the object with less mass will move faster than the object with more mass.
All scavengers are consumers but not all consumers are scavengers true or false explain your answer.
why do electrons move from the negative end of the tube to the positive end? please help
Final answer:
Electrons move from the negative to the positive end in a tube due to the electric field created by the potential difference, attracting the negatively charged electrons towards the positive charge. The power source or battery maintains this potential difference, and the motion of electrons is also influenced by thermionic emission in cathode ray tubes.
Explanation:
Electrons move from the negative end to the positive end of a tube because they are negatively charged and are attracted to the positive charge. This movement is due to the electric field created by the potential difference between the negative and positive ends. When electrons travel through conductors, such as metal wires, they encounter resistance from other electrons, atoms, and impurities, losing energy along the way. To maintain their motion, there must be a force, supplied by the electric field, which points from the higher potential to the lower potential end. Since electrons are negatively charged, they move in the direction opposite to the electric field.
In many real-world applications, including electronic circuits and vacuum tubes, the force driving electron movement is the electric potential difference, or voltage, between two points. This potential difference is often created by a battery or other power source, which functions as an electromotive force (emf) source. It moves the negative charges from the positive terminal to the negative terminal, thereby maintaining the potential difference.
Additionally, in cathode ray tubes, electrons are emitted from the cathode due to thermionic emission, where heat causes the detachment of electrons. Both the repulsion from the negatively charged cathode and the attraction to the positive anode encourage electrons to move toward the anode. However, this force is not purely due to attraction and repulsion; it is also influenced by the thermionic effect, which is based on heat-induced motion.
The element oxygen, represented by the symbol O, is classified as
Which type of bond (ionic, covalent, or metallic) does the phrase "opposite attract" apply to best? Explain.
it takes a car 1.75h to go from mile marker 10 to mile marker 115. What is the average speed of the car
A 1.6
B65
C183
D60
The average speed of the car for the given distance and time is 60 mph.
The given parameters;
time of motion of the car, t = 1.75 hinitial position, x₁ = 10 milesfinal position, x₂ = 115 milesThe average speed of the car is determined by dividing the total distance by total time of motion as shown below;
[tex]average \ speed = \frac{total \ distance}{total \ time} \\\\average \ speed = \frac{115 - 10}{1.75} \\\\average \ speed = 60 \ mph[/tex]
Thus, the average speed of the car for the given distance and time is 60 mph.
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At the beach, describe where or when you would see wave
fronts. How are wave fronts useful to surfers?
Final answer:
Wave fronts at the beach are observable as waves approach the shore and become nearly parallel due to refraction, which is significant for surfers as it creates larger waves off points and headlands, ideal for surfing.
Explanation:
At the beach, wave fronts are observed especially where ocean waves formed by winds reach the shallower waters near the shore. Due to the phenomenon of wave refraction, as waves travel from deeper to shallower water, their speeds decrease, causing the wave fronts to realign almost parallel to the shoreline. This process is critical for surfers as the refraction of wave fronts concentrates wave energy towards points and headlands, offering larger and more consistent waves suitable for surfing.
Surfers benefit from understanding wave fronts and wave refraction because it helps them identify the best spots for larger waves, particularly off of points and headlands where wave energy is focused. Meanwhile, bays will have calmer waters due to the dispersion of wave energy, making them less ideal for surfing. This knowledge is crucial for surfers when choosing locations to surf, as the geometry of the coastline significantly influences wave characteristics.
This is the third most abundant gas in the atmosphere This is from a crossword puzzle and it has 5 letters.
The third most abundant gas in the Earth's atmosphere is argon, which makes up about 0.9% of the atmosphere by volume. It follows nitrogen and oxygen in abundance.
Argon, despite its relatively low profile in discussions about Earth's atmosphere, holds a significant presence as the most abundant noble gas. Comprising approximately 0.93% of the atmosphere, its inert nature lends stability to atmospheric composition. Unlike reactive gases such as oxygen and nitrogen, argon remains unreactive, contributing to atmospheric equilibrium. Its prevalence, though often overlooked, underscores its crucial role in maintaining atmospheric stability and composition.
Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 m/s. What is her momentum
The momentum of Amy of mass 30 kg travelling at a speed of 5 m/s is 150 Kg m/s²
What is momentum?
Momentum is defined as the product of mass and velocity of a body. Mathematically, we can write vector as -
p = mv
It is a vector quantity. In a three dimensional coordinate, the momentum vector can be resolved as -
[p] = p[x] a[x] + p[y] a[y] + p[z] a[z]
[p] = m {v[x] a[x] + v[y] a[y] + v[z] a[z]}
Given is Amy of mass 30 kg and she is riding a skateboard traveling 5 m/s.
Mass of Amy = [m] = 30 Kg
Velocity of Amy = [v] = 5 m/s
Now, the momentum of Amy will be -
p[A] = mv = 30 x 5 = 150 Kg m/s²
Therefore, the momentum of Amy of mass 30 kg travelling at a speed of 5 m/s is 150 Kg m/s²
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limestone is an example of a chemical sedimentary rock. describe how limestone may form
In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?
A) The strong ocean currents are undermining both areas causing earthquakes.
B) Both areas are subjected to strong ocean wind and waves that causes earthquakes.
C) Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.
D) Both areas are on the boundary of active plate margins, the motion of the plates causes earthquakes.
Since Mars is smaller, how can it have an equal landmass?
With a smaller mass, objects should be denser in order to have an equal landmass.
What is landmass?A landmass is actually defined as the area covered by a solid layer. The phrase is frequently used to describe areas of land enclosed by water, such as a continent or sizable island. A landmass is an identified portion of the continental crust that rises above sea level in the science of geology.
Mars should be denser if it has an equal landmass. But in reality, its landmass is not equal 'cause its density is about 72% of that of earth. Mars is the second-smallest planet in the Solar System and the fourth planet from the Sun. It is just larger than Mercury.
Therefore, with a smaller mass, objects should be denser in order to have an equal land mass.
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Using Hooke's law, F spring=k delta x, find the distance a spring with an elastic constant of 4 N/cm will stretch if a 2 newton force is applied to it.
A.) 2 cm
B.) 1/2 cm
C.) 4 cm
D.) 8 cm
Hello!
Using Hooke's law, F spring=k delta x, find the distance a spring with an elastic constant of 4 N/cm will stretch if a 2 newton force is applied to it.
Data:
Hooke represented mathematically his theory with the equation:
F = K * Δx
On what:
F (elastic force) = 2 N
K (elastic constant) = 4 N/cm
Δx (deformation or elongation of the elastic medium or distance from a spring) = ?
Solving:
[tex]F = K * \Delta{x}[/tex]
[tex]2\:N = 4\:N/cm*\Delta{x}[/tex]
[tex]4\:N/cm*\Delta{x} = 2\:N[/tex]
[tex]\Delta{x} = \dfrac{2\:\diagup\!\!\!\!\!N}{4\:\diagup\!\!\!\!\!N/cm}[/tex]
simplify by 2
[tex]\Delta{x} = \dfrac{2}{4}\frac{\div2}{\div2}[/tex]
[tex]\boxed{\boxed{\Delta{x} = \dfrac{1}{2}\:cm}}\Longleftarrow(distance)\end{array}}\qquad\checkmark[/tex]
Answer:
B.) 1/2 cm
_______________________
I Hope this helps, greetings ... Dexteright02! =)
Using Hooke's Law and the given force and spring constant, we can calculate that a spring will stretch 1/2 cm when a force of 2 Newtons is applied.
Explanation:In this problem, we're tasked with using Hooke's law, which in mathematical terms is expressed as F = k delta x. Here, F denotes force, k is the spring constant, and delta x represents the distance the spring moves or is stretched from its original position.
This law shows the relationship between the force applied to a spring and the distance it stretches. The greater the force applied, the further the spring stretches. The spring constant, meanwhile, represents the spring's resistance to distortion.
Given that the force 'F' is 2 Newtons, and the spring constant 'k' is 4 Newtons per centimeter, we substitute these values into Hooke's law:
2 = 4 * delta x
By rearranging the equation to solve for delta x, we can find that the distance the spring stretches is 0.5 cm. Therefore, the correct answer is:
B.) 1/2 cm
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Why are chemical properties harder to observe than physical properties?
Table salt (NaCl) dissolves in water. What happens when saltwater is made? A) The salt crystals sink to the bottom of the water. B) The salt crystals split into ions. C) The salt crystals float to the top of the water. D) The water molecules split into ions
The accepted standard measurement for mass is the A) liter. B) pound. C) Newton. D) kilogram.
The accepted standard measurement for mass is kilograms, while the pound is the local measurement used in western countries,
therefore the correct answer is option D.
What is a unit of measurement?A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation.
The accepted standard measurement for mass is kilograms.
The accepted standard measurement for force is Newtons.
While on the other hand liter is the commonly used unit for the measurement of a fluid substance such as liquid or gas.
Thus, the correct answer is option D.
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what happens to a muscle when you exercise it?
Answer:
More blood is pumped to the exercising muscles to deliver that additional O
Explanation:
two kids are roller skating. Amy with the mass of 55kg, traveling at 3m/s. Jenny who has a mass of 40kg is traveling at 5m/s in the opposite direction. they crash into each other and hold onto each other so now they are skating together,how fast are they traveling?t
m1v1+m2v2=(m1+m2)=v
is the equation needed for this, I need help with how to do the steps,it's on my review,please help and thank you!
suppose you want to build a house on the edge of a hill that overlooks a deep valley. what measures could you take to be sure your home will not have problems due to weathering or erosion
Do you hear sounds around you as one frequency at a time or as many frequencies at once?
Plz help
How is momentum conserved in a system in which two satellites connect?
Question 19 options:
The one satellite has all the momentum before they connect, and then afterwards they share it.
Both satellites have momentum before they connect, and afterwards they have less momentum.
Both satellites have momentum before they connect, and afterwards they have more momentum.
Momentum is not conserved when the two satellites connect.
Answer:
The one satellite has all the momentum before they connect, and then afterwards they share it.
Explanation:
I took the test and I got it correct.
Hope this helps! :)
Final answer:
Momentum is conserved in a system where two satellites connect. Before the connection, both satellites have momentum, and after the connection, the total momentum of the system remains the same.
Explanation:
Momentum is conserved in a system in which two satellites connect. Before the connection, both satellites have momentum, and after the connection, they continue to have momentum. However, the total momentum of the system remains the same before and after the connection. This means that if one satellite gains momentum, the other satellite must lose an equal amount of momentum to maintain conservation of momentum
Therefore, the correct option is option A The one satellite has all the momentum before they connect, and then afterwards they share it.
The Apollo missions ended with what mission?
The Apollo missions ended with Apollo 17, which landed on the Moon in December 1972 and included a geologist among its astronauts.
The Apollo missions concluded with Apollo 17, which was the last mission to land on the Moon. This historic mission took place in December of 1972 and marked the culmination of NASA's lunar landing efforts. While there were a total of nine Apollo flights to the Moon, six of which successfully landed while the others orbited the Moon, it was Apollo 17 that closed this pioneering chapter in space exploration.
The mission was not only significant for its successful lunar landing but also because it included a scientist, geologist Jack Schmitt, among the astronauts, enhancing the mission's scientific contribution.
the formula for sodium sulfide is na2s what does it mean
Final answer:
The formula Na₂S means that there are two sodium ions paired with one sulfide ion to create a neutral ionic compound. Sodium ions carry a 1+ charge and sulfide ions have a 2- charge, so two sodium ions are required to balance out one sulfide ion, leading to the formula Na₂S.
Explanation:
The formula for sodium sulfide, Na₂S, represents an ionic compound formed between the sodium cation, Na⁺, and the sulfide anion, S²⁻. To predict the compound's formula, you must consider that sodium tends to form a 1+ ion, while sulfur forms a 2- ion.
For the charges to balance and the compound to be electrically neutral, two sodium ions are needed for every sulfide ion. As a result, the chemical formula Na₂S indicates that there are two sodium ions for every one sulfur ion in the compound.
To balance the positive and negative charges, remember that the total charge in the compound must equal zero. In the case of sodium sulfide, two Na⁺ ions (each with a +1 charge) will balance one S²⁻ ion (with a -2 charge), resulting in a neutral compound.
Thus, we write Na₂S instead of NaNaS, which is the simplified formula as per chemical convention.
The planet Venus, our moon, and Halley's Comet all
A.) Are larger than the earth
B.) are composed of primarily hydrogen.
C.) change speed dramatically as they orbit.
D.) have highly predictable orbits around the sun.
Answer: The correct answer is Option D.
Explanation:
Venus is the second planet of our solar system and is similar in size as compared to Earth. It's atmosphere is mainly composed of carbon dioxide with minor amounts of nitrogen. This planet have a fixed orbital time around the sun which is 225 days.
Moon is the natural satellite of Earth and is smaller than Earth. It is composed of mainly oxygen, silicon, magnesium, iron, calcium, and aluminum. The orbital period of moon around Sun is 29.5 days.
Halley's Comet is a comet which is very small as compared to Earth and is composed of water, carbon monoxide, carbon dioxide and other ices. It appears in every 75-76 years.
Hence, all of the above have highly predictable orbits around the Sun. Therefore, the correct answer is Option D.
a scientist discovers an object in the solar system .she describes it as bigger than an asteroid,smaller than mercury and farther than Neptune from the sun what is it explaine
Answer: Probably the dwarf planet - Pluto
Explanation:
Pluto was once a planet and was demoted to a dwarf planet. It has size smaller than mercury ( 25 times smaller) but larger than asteroid. Pluto has 5 moons. It lies beyond the orbit of Neptune in the Kuiper belt. It was discovered by Clyde Tombaugh in 1930. Pluto revolves around sun in 248 years.
The object discovered by the scientist is most likely to be Pluto.
Mass = 567.5 g Volume = 50.0 cm3 What is the density of lead? 1.135 g/cm3 11.35 g/cm3 113.5 g/cm3 1,135 g/cm3
Answer:
b
Explanation:
If a iron cube weighs 7.9kg what is its density in g/cm3
Density is calculated as mass divided by volume. The density of an iron cube can be calculated if the volume is known. Typically, the density of iron is 7.9 g/cm3.
Explanation:This question involves a basic principle of physics called density, calculated as mass across volume. The density of iron, which we can denote by 'ρ', is typically around 7.9 g/cm3. In your question, you stated that the
iron cube
weighs 7.9kg. However, to find the density, we need to know the volume of the cube as well. Remember that you can convert kilograms to grams (1kg = 1000g) if needed.
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what natural processes can shape rock in such a curious way
Natural processes that can shape rock in curious ways include weathering, erosion, deposition, tectonic activity, and volcanic activity. These processes work together in the rock cycle to form different types of rocks like igneous, sedimentary, and metamorphic rocks in various environments simultaneously.
The rock cycle begins with the formation of igneous rock, which forms when magma cools and solidifies. This can happen below the Earth's surface, forming intrusive igneous rocks with large crystals due to slow cooling. Conversely, if magma erupts from a volcano and cools rapidly on the surface, it forms extrusive igneous rocks with smaller crystals. Over time, these igneous rocks can be broken down by weathering and eroded away by wind, water, ice, or gravity. The eroded particles are then transported and eventually deposited, often in layers, and compacted to form sedimentary rock. With the right conditions, such as high temperatures and pressures, these rocks can undergo metamorphosis, transforming into metamorphic rock. Moreover, due to tectonic processes, rocks can be subducted into the mantle where they melt and the cycle starts anew.
Tectonic processes such as the movement of the Earth's plates can lead to the formation of volcanic features. For instance, when two plates diverge at a plate boundary, magma can rise and solidify to form new crust, which may include volcanic islands. Additionally, hotspots, areas of intense heat in the mantle that are stationary relative to the moving tectonic plates, can also form volcanic structures as the plates move over them. The type of melt process occurring can vary depending on the location and conditions; some areas may experience partial melting of the mantle, whereas others might involve the melting of subducted sedimentary rocks leading to different volcanic products and features.
This is a graph of a marble traveling across a smooth surface. What is the average speed of this marble?
Answer:
v = 1.5 m/s
Explanation:
The attached figure shows a distance time graph. The motion of marble is uniform. It covers equal distance in equal interval of time. The average speed of the car is calculated by finding its slope in d-t graph.
From the attached figure,
[tex]d_1=6\ m[/tex]
[tex]d_2=3\ m[/tex]
[tex]t_1=4\ s[/tex]
[tex]t_2=2\ m[/tex]
Slope of the graph is given by :
[tex]slope=\dfrac{d}{t}=\dfrac{d_1-d_2}{t_1-t_2}[/tex]
[tex]slope=v=\dfrac{6-3}{4-2}[/tex]
v = 1.5 m/s
So, the average speed of this marble is 1.5 m/s.
Rounded to the nearest whole number, what is the atomic mass of platinum? 78 117 195 273
Answer: The atomic mass of the platinum will be 195.
Explanation:
We know that,
Atomic mass is the sum of the electrons and protons.
Platinum is the chemical element and it is the symbol is Pt. The atomic number of the platinum is 78 and the atomic mass is the 195,084 u.
According to the question,
Rounded to the nearest whole number
Hence, The atomic mass of the platinum will be 195.
Glacial episodes are an example of