Its B- Ground, just took the test
Ground
Explanation;Mosses are located in the ground zone of the deciduous forests.Deciduous forests is a biome that has a soil that is rich and the leaves are dropped from the trees to provide a source of organic matter for the soil.Mosses plants are types of plants which belongs to the bryophyta group of plants. They lack roots and are evergreen plants that grow in a wide range of environments but are commonly found covering the ground, along the stream beds, and also at the bases of the trees in deciduous forests.Which organelles is used to transport materials through the cell
The surface features of ________ are known only through satellite radar mapping. jupiter mercury venus mars
If the sun were replaced by a 1-solar-mass black hole, what would be the gravitational pull of the black-hole "sun" on earth?
The gravitational pull that a 1-solar-mass black hole would exert on Earth is the same as the sun. This is because gravitational pull is determined by mass and distance. However, life on Earth would be greatly impacted due to the lack of sunlight and heat.
Explanation:If the sun was replaced by a 1-solar-mass black hole, the gravitational pull it exerts on Earth would be the same as that of the sun. This is due to the fact that gravitational pull is determined by mass and distance. Considering the mass would be the same and the distance between Earth and the black hole would remain constant, the gravitational pull remains unaffected.
However, without the sun's light and heat, life as we know it on Earth would not be sustainable. It's also important to note that while the gravitational pull remains the same, various other aspects of having a black hole instead of a sun would drastically impact our planet.
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A roller coaster is 1/2 way down, what form of energy does this roller coaster have at this point?
KINETIC, POTENTIAL, OR BOTH KINETIC AND POTENTIAL ENERGY?
A train travels 120 km In 2 hours and 30 minutes what’s its average speed
Sasha uses a basketball and a tennis ball to represent two astronomical bodies based on their sizes. Which of the following representations is the most correct based on what Sasha has? The basketball represents Earth and the tennis ball represents the solar system. The basketball represents the moon and the tennis ball represents the solar system. The basketball represents the solar system and the tennis ball represents Earth. The basketball represents the solar system and the tennis ball represents the Milky Way.
Answer:
C
Explanation:
im doing the test rn but i think this is right correct me if im wrong also have a good day or night
Which scientist proposed the idea of a sun-centered solar system instead of an earth-centered solar system?
Final answer:
Nicolaus Copernicus is credited with challenging the geocentric model and proposing a sun-centered solar system, which was later supported by other astronomers like Tycho Brahe, Johannes Kepler, and Galileo Galilei.
Explanation:
The scientist who is credited with proposing the idea of a sun-centered solar system is Nicolaus Copernicus. Before the 16th century, the prevailing model of the cosmos was geocentric, developed by Aristotle and Ptolemy, with the Earth at the center. However, Copernicus challenged this view in his treatise "On the Revolutions of the Celestial Spheres", initiating a paradigm shift towards a heliocentric model. This change was further supported by the observations and analyses of Tycho Brahe, Johannes Kepler, and Galileo Galilei, as well as the theoretical framework provided by Isaac Newton's laws of motion and universal gravitation.
Noise caused by not understanding somebody's accent is considered:
A) semantic
B) temporal
C) internal
D)external
Answer:
semantic.
Explanation:
100% correct
A transformer has 20 turns in its primary coil and 60 turns in its secondary coil. The input voltage for the transformer is 25 volts. What is the output voltage?
Subtitle is the half-life of an element is 10 years how many half-lives will it take before only about 6% of the original sample remains
Which statement is true about tomato juice? A) It is an acid. B) It has a pH of 7.0. Eliminate C) It is strongly basic in nature. D) It is a weak hydrophobic substance.
What type of roadway has the highest number of hazards per mile?
The roadway with the highest number of hazards per mile is city roads and street.
The city has a high population of people, this is a combination of both men and women. These categories of people need vehicles to move around the city, they need it go to the office, school, markets and so on.
Due to the high number of individuals in the city there tend to be a high level of traffic, this can lead to accident or other type of road hazards.
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A car approaches a police radar gun. how does the wavelength of the signal detected within the car compare with that emitted by the radar gun? the wavelength detected inside the car is longer. the wavelength detected inside the car might be shorter or longer depending on speed range. the wavelength detected inside the car is the same. the wavelength detected inside the car is shorter.
If the motor exerts a force of F = (600 + 2s2) N on the cable, determine the speed of the 100-kg crate when it rises to s = 15 m. The crate is initially at rest on the ground.
Answer:
Speed of the 100 kg crate, v = 136 m/s
Explanation:
It is given that,
Force exerted by a motor, F = (600+2 s²) N
mass of the crate, m = 100 kg
We have to find the speed of the crate. Force is given by the product of mass and acceleration.
F = m a
g is acceleration due to gravity
[tex]F=m\dfrac{d^2s}{dt^2}[/tex]
[tex]\dfrac{d^2s}{dt^2}=\dfrac{600+2s^2}{100}[/tex]
[tex]\dfrac{d^2s}{dt^2}=6+0.02s^2[/tex]
[tex]\dfrac{d^2s}{dt^2}-6-0.02s^2=0[/tex]
or
s"- 6 - 0.02 s² = 0
On solving the above differential equation using calculator with when initially the crate is at rest s(0) = 0 and s'(0) = 15 m
[tex]s(t)=150\ e^{-\sqrt{2}t}+150\ e^{\sqrt{2}t}-300[/tex]
Differentiating above equation w.r.t t to get velocity of the crate.
So, v = 136 m/s
Hence, this is the required solution.
Strictly speaking, when an object acquires a positive charge by the transfer of electrons, what happens to its mass? (think small.)
All of the following statements describe how rubbing one object on another creates static electricity except:
A. Rubbing converts neutrons to protons, increasing the charge.
B. Charge is transferred from one object to the other.
C. The electrons get ripped off one object and held by the other.
D. Rubbing allows the object that has the greater electron attraction to take them.
Answer:
A. Rubbing converts neutrons to protons, increasing the charge
Explanation:
Rubbing two objects creates static electricity. It is also known as charging by friction. When two objects having different electron affinity are rubbed together, the one with greater electron attraction rips off the electrons from other object. In this way charge is transferred from one to another. The one losing the electrons becomes positively charged and the one gaining the electrons becomes negatively charged. Neutrons do not convert to protons. Thus, this is a wrong statement.
Four springs are stretched to the same distance from the equilibrium position. The spring constants are listed in the table. Which lists the springs based on the amount of elastic potential energy, from greatest to least? X, Y, W, Z X, W, Y, Z Z, W, Y, X Z, Y, W, X
Answer:B
Explanation:
XWYZ
ANALOGY: Mars bar: planet as Milky Way: __________
Star cluster
Candy bar
Constellation
Galaxy
A 10 - kg object is dropped from rest. after falling a distance of 50 m, it has a speed of 26 m/s. how much work is done by the dissipative (air) resistive force on the object during this descent?
What is an outward curving lens
An outward curving lens, or convex lens, converges light rays and is an essential element in optical devices like microscopes and cameras. It has a positive radius of curvature by convention. Convex lenses help correct farsightedness by focusing light rays onto a specific point.
An outward curving lens, also known as a convex lens or a converging lens, is a lens that is curved outward on both sides, resembling the intersection of two spheres. This type of lens causes parallel light rays to converge or come to a point after passing through it. The radius of curvature for a convex surface is positive by convention, which helps in the lens-maker's equation for calculating the focal length of the lens.
Convex lenses are widely used in various optical devices such as microscopes, telescopes, cameras, and eyeglasses to correct farsightedness by focusing light rays onto a specific point, resulting in a clear image.
1. Describe the formation of the four types of fronts and the weather associated with each
2. How does the burning fossil fuels influence global temperature. How might the change in temperature affect other parts of Earth, such as the hydrosphere and biosphere
Warm front
Stationary front
Occluded front
30 POINTS! (Question is located in picture under graph)
A) The variables are plotted along incorrect axes.
B) The unit of the variable on the y-axis is incorrect.
C) The scale for each axis is not appropriate for the data.
D) The data points have not been plotted clearly.
E) The data points have not been plotted accurately.
Answer:
B) The unit of the variable on the y-axis is incorrect.
Explanation:
The question to this exercise is in the picture. It is '' What makes the above graph incorrect? ''
Let's analize each option :
A) The variables are plotted along incorrect axes. This is wrong because actually the graph is well-plotted. In a displacement versus time graph we put the time variable in the x-axis and the displacement variable in the y-axis.
B) The unit of the variable on the y-axis is incorrect. This is true. In the graph we can see that [tex]''Displacement(\frac{m}{s})''[/tex] when the units of displacement are units of lengths such as meters or miles for example. Therefore, the B) is a correct option
C) The scale for each axis is not appropriate for the data. This is wrong. Because of the scale for each axis we are able to see the five data points which are (1,2) ; (2,4) ; (3,6) ; (4,8) and (5,10)
D) The data points have not been plotted clearly. This is wrong. All data points are well-plotted signposted with a point at the intersection of the dashed coordinated lines. For example, the point (1,2) is at the intersection of two lines : one dashed line perpedicular to the x-axis at 1 and one dashed line perpendicular to the y-axis at 2
E) The data points have not been plotted accurately. This is wrong. The data points have been plotted accurately at the intersection of the coordinated dashed lines.
Finally, the only correct option is B)
At a particular instant, a stationary observer on the ground sees a package falling with speed v1 at an angle to the vertical. to a pilot flying horizontally at constant speed relative to the ground, the package appears to be falling vertically with a speed v2 at that instant. what is the speed of the pilot relative to the ground?
When two velocities combine, to a ground observer, a package dropped from a plane falls at an angle, but to a pilot moving with the package, it appears to fall vertically. Using Pythagorean theorem, we calculate the speed of the pilot as √(v1^2 - v2^2).
Explanation:This is a Physics problem that deals with relative velocities. We need to evaluate what is observed by two different observers stationed at different places. The first observer is stationary and they view the package at an angle with the speed v1. The second is a pilot who perceives the same package dropping vertically with the speed v2.
In this scenario, the package has two independent velocities, a horizontal one (which is the speed of the airplane), and a vertical one (which is the speed of the package falling down). To the observer on the ground (which is stationary), both these speeds combine, resulting in the package falling at an angle. But to the pilot, who moves with the package horizontally, only sees the vertical fall. Therefore, they perceive the package falling downwards with the speed v2.
Using the Pythagorean theorem for velocity addition for perpendicular components, we know that v1^2 = (speed of the pilot)^2 + v2^2. Therefore, using algebra, we find the speed of the pilot to be √(v1^2 - v2^2).
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What are the short eruptions of intense high-energy radiation from the sun's surface called? Corona Prominences Solar flares Sunspots
The answer is Solor flare, this is because this is a sudden eruption of energy that is magnetic on or even near the surface of the star, the sun.
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Signs of fatigue while driving include __________.
A. sore eyes and muscles
B. lapses in short-term memory
C. sore eyes, sore muscles, and lapses in short-term memory
Answer:
C. Sore eyes, sore muscles, and lapses in short term memory
Explanation:
Fatigue refers to an overall feeling of tiredness or a lack of energy in accomplishing tasks, e.g. driving.
Causes of fatigue while driving include;
a lack of quality sleep driving when you would normally be sleeping (overnight) sleep disorders such as sleep apnoea, a sleeping condition that causes tiredness throughout the day.Symptoms of fatigue while driving
Fatigue is easy to detect, with symptoms including:
yawning sore or heavy eyes slower reaction times due to memory short-term lapsesdaydreaming while driving driving speed creeps up or down impatience impaired driving performance such as poor gear changes stiffness and cramps loss of motivation Which of these is NOT large and gaseous?
A) Jupiter
B) Mercury
C) Saturn
D) Uranus
A student wants you to demonstrate that an electric current will produce a magnetic field. Which set of objects could be used to demonstrate this? A) A battery, a coil of wire and a compass. B) A compass, some paper clips and a battery. C) A battery, an iron nail and a long copper wire. D) An iron nail, a permanent magnet and a battery.
Answer:
A
Explanation:
A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.
Answer:
a battery, a coil of wire and a compass
Explanation:
A compass can show that an electric field is present. So, a battery, a coil of wire and a compass together could demonstrate that an electric current produces a magnetic field.
What do astronomers mean when they say that the universe is isotropic?
A ray of light traveling in air strikes the surface of a liquid. if the angle of incidence is 29.7◦ and the angle of refraction is 16.3◦ , find the critical angle for light traveling from the liquid back into the air. answer in units of ◦
Which of the following describes groundwater?
Groundwater is a renewable resource.
Groundwater flows quickly.
Groundwater exists only in regions that get a lot of rain.
Groundwater does not exist during dry periods.
Answer: Groundwater exists only in regions that get a lot of rain.
Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth crust through tiny pores and fractures in the rocks. The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.
According to the above description, Groundwater exists only in regions that get a lot of rain can be considered as correct option.