Answer:
The answer is 12 mExplanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = velocity × time
From the question we have
distance = 2 × 6
We have the final answer as
12 mHope this helps you
Why is acceleration due to gravity low in the space?
Answer:
Explanation:
actually , the acceleration due to gravity depends on the distance from it's center of the earth.
when the distance from the earth increases , the acceleration due to gravity decreases as a result . The value of gravity in space is zero.
Bobo the clown carries two red balloons that rub against a circus elephant, causing thr baloons to seperate. Each balloon aquires 1.2x10^-7 of charge. How large is the electric orce between them when the balloons are seperated by a distance of 0.5m
The electric force between the two balloons is approximately 1.04 x \(10^{-12}\) N.
Coulomb's Law:
The electric force between two charged objects can be calculated using Coulomb's Law, which states that the magnitude of the electric force F between two charged objects is directly proportional to the product of their charges (q1 and q2) and inversely proportional to the square of the distance (r) between them:
F = k * (q1 * q2) / r²
where k is the Coulomb constant, which has a value of approximately 9.0 x \(10^{9}\) N*\(m^{2}\)/\(C^{2}\).
In this case, each balloon acquires a charge of 1.2 x \(10^{-7}\) C, so the total charge on both balloons is 2 * 1.2 x \(10^{-7}\)C = 2.4 x \(10^{-7}\)C. The distance between the balloons is 0.5 m.
Plugging in these values into Coulomb's Law, we get:
F = (9.0 x \(10^{9}\) N*\(m^{2}\)/\(C^{2}\)) * [(1.2)²x (\(10^{-7}\) C)²/ (0.5m)²]
Simplifying this expression gives:
F = 1.0368 x \(10^{-12}\) N
Therefore, the electric force between the two balloons is approximately 1.04 x\(10^{-12}\) N.
What is magnitude?
Magnitude refers to the size or extent of something, usually measured in numerical or quantitative terms. It can refer to a physical quantity, such as length, mass, or volume, or it can refer to other measurable attributes, such as brightness, intensity, or force. In general, magnitude is a relative measure, meaning that it is typically expressed as a comparison between two or more things.
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what is a major selecting factor for astronomers looking to place a telescope atop a mountain
If the elements in two arrays are related by their subscripts, the arrays are called arrays.
a. associated
b. coupled
c. dynamic
d. parallel
If the elements in two arrays are related by their subscripts, the arrays are called : d. parallel
A collection of parallel arrays, commonly referred to as a structure of arrays (SoA), is a type of implicit data structure used in computing to represent a single array of records using many arrays. Each field of the record is maintained as a distinct, homogenous data array with an equal amount of items.
In parallel arrays, a collection of data is represented by two or more arrays, where each corresponding array index represents a field that matches a particular record. The array items at names[2] and ages[2] would describe the name and age of the third individual, for instance, if there were two arrays, one for names and the other for ages. The elements in two arrays are related by their subscripts.
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A 20 kg box has 1000 joules of potential energy on a shelf. How high is the shelf?
when the angle of inclination of the inclined plane increases, what will happen to the acceleration along the inclined plane?
When there is acceleration along the inclined plane then accelerations increase as incline angles increase.
angle of inclination :
The angle between a line's inclination and the x-positive axis's direction is known as the inclination.This angle's value ranges from 0° to 180°.It is measured counterclockwise around the positive x-axis direction.The force component parallel to the incline rises as the angle increases, while the force component perpendicular to the incline falls. The acceleration is brought on by the parallel portion of the weight vector.
Therefore, accelerations increase as incline angles increase.
When there is acceleration along the inclined plane then accelerations increase as incline angles increase.
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briefly explain why metals are opaque to electromagnetic radiation
Metals are opaque to electromagnetic radiation due to their ability to absorb electromagnetic radiation over a wide range of frequencies, particularly in the ultraviolet and visible regions.
Metals are opaque to electromagnetic radiation because they have the ability to absorb electromagnetic radiation over a wide range of frequencies, particularly in the ultraviolet and visible regions. A metal is a good conductor of electricity, which means that the electrons in its atoms are free to move around the metal's structure and form a "sea" of electrons, which is what causes the metal's characteristic luster.
Metallic bonding occurs when the metal atoms share their outermost electrons with each other, forming a crystal lattice. The delocalized electrons move freely throughout the metal lattice, and they are responsible for a metal's electrical conductivity and thermal conductivity.
Metals' ability to absorb electromagnetic radiation is linked to the behavior of their electrons. Electrons in a metal's lattice can be excited by absorbing energy from electromagnetic radiation, and the energy is subsequently lost when the electrons relax back to their original energy states.
Metals are opaque because their electrons absorb so much energy from the electromagnetic radiation that the energy is completely absorbed by the metal before it has a chance to pass through it. Thus, metals appear opaque to most electromagnetic radiation.
This happens when the electrons in a metal's structure absorb photons (particles of light). They take the energy from the photons and use it to move around the metal's structure, which causes the metal to heat up. If the metal absorbs enough photons, it can become hot enough to emit light of its own.
In summary, metals are opaque to electromagnetic radiation due to their ability to absorb electromagnetic radiation over a wide range of frequencies, particularly in the ultraviolet and visible regions.
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describe two different situations where acceleration is zero, one when the velocity is zero and one where the velocity is not zero.
Examples or situation where the acceleration is zero is a body which is at rest and a body which is moving in a constant velocity with out changing its direction.
Acceleration: Rate of change of velocity is known as acceleration.
Zero velocity with zero acceleration: If a body is at rest with zero velocity then there is no chance of changing the velocity so the acceleration will be zero.
Non zero velocity with zero acceleration: If a body is moving in a constant velocity without changing its direction also then there is no any change in velocity is happening so the acceleration will be zero in there also.
Therefore the examples where the acceleration will zero is body at rest and body at constant velocity.
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The graphic organizer compares energy transfer in two layers of the Sun. A venn diagram of 2 intersecting circles with the left circle labeled convection zone and the right circle labeled radiative zone. There is an X in the convection zone circle. There is a Y in the radiative zone. Which labels belong in the regions marked X and Y? X: Absorbs energy from the core Y: Takes longer for photons to move through X: Releases energy to the photosphere Y: Takes longer for photons to move through X: Takes longer for photons to move through Y: Absorbs energy from the core X: Takes longer for photons to move through Y: Releases energy to the photosphere
Answer:
X: Absorbs energy from the core.
Y: Releases energy to the photosphere.
Explanation:
Convection is a mode of heat transfer through fluids (liquids or gas), and it requires material medium for its propagation.
The energy absorbed from the core of the Sun, is transferred through X (convection zone) by convectional process, and it flows to Y (radiative zone). Since the regions X and Y have different functions, the heat propagates from X causing photons to traverse through Y where it get released into the photosphere or the Sun's surface.
Therefore;
X: Absorbs energy from the core.
Y: Releases energy to the photosphere.
Answer:
X: Takes longer for photons to move through
Y: Releases energy to the photosphere
Explanation:
Jill is farsighted and cannot see objects clearly that are closer to the eye than 80.0 cm. What is the refractive power of the contact lenses that will enable her to see objects at a distance of 25.0 cm from her eyes g.
To help Jill see objects clearly at a distance of 25.0 cm, we need to calculate the refractive power of the contact lenses. We'll use the lens formula:
1/f = P = 1/d_o + 1/d_i
where f is the focal length, P is the refractive power, d_o is the object distance (25.0 cm), and d_i is the image distance.
First, let's find the image distance (d_i) without the contact lenses. Since Jill can see objects clearly at 80.0 cm, that will be the image distance:
1/f = 1/25.0 + 1/80.0
1/f = 0.04 + 0.0125
1/f = 0.0525
f = 1/0.0525 ≈ 19.05 cm
Now, let's find the refractive power of the contact lenses that will allow Jill to see objects clearly at a distance of 25.0 cm. We'll adjust the object distance to 25.0 cm:
1/f_contact = 1/25.0 - 1/19.05
1/f_contact ≈ 0.04 - 0.0525
1/f_contact ≈ -0.0125
f_contact ≈ -80 cm
Since the focal length of the contact lens is negative, it indicates that Jill needs a converging lens to correct her farsightedness. The refractive power of the contact lenses required is:
P_contact = 1/f_contact
P_contact = 1/-80
P_contact ≈ -0.0125 diopters
So, Jill will need contact lenses with a refractive power of approximately -0.0125 diopters to see objects clearly at a distance of 25.0 cm from her eyes.
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A water tank is filled with up to 3.5 m height.Calculate the pressure given by the tank at its bottom
Answer:
96.04Pa
Explanation:
height=3.5m
gravity=9.8%
density=9.8/3.5
=2.8
Preassure=h×g×d
=3.5×9.8×2.8
=96.04Pa
Which type of thermal energy causes ocean currents?
Answer:
convection thermal energy causes ocean currents?
HELP MEEEEEEEEEEEEEEEEE
Answer:
The metal screw is pushing on the magnet.
How to integrate 1/ 1 + x2
The integral of 1/(1 + x²) is (1/2)ln|1 + x²| + C where C is the constant of integration.
Integration is a mathematical process of finding the antiderivative of a function. To integrate the given expression 1/(1 + x²), we will use the substitution method.
Let u = 1 + x², du/dx = 2x dx, then dx = du/2x and the integral becomes:
∫1/(1 + x²) dx = ∫1/u * (1/2x) du= (1/2)∫1/u du
The antiderivative of 1/u is ln|u| + C, where C is the constant of integration.
Therefore, the final solution of the integral is (1/2)ln|1 + x²| + C.
Let us work through the steps:
Step 1:Let u = 1 + x² and then differentiate both sides with respect to x to obtain du/dx. du/dx = 2x
Substitute 2x dx = du into the integral ∫1/(1 + x²) dx to get the integral in terms of u:∫1/u * (1/2x) du = (1/2) ∫1/u du
Step 2:Calculate the antiderivative of 1/u, which is ln|u|. Thus, the final solution is (1/2)ln|1 + x²| + C, where C is the constant of integration. The constant C will vary depending on the initial conditions of the problem.
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help please
A vector in the xy plane has components \( -14.0 \) units in the \( x \)-direction and 5 units in the \( y \)-direction. (a) What is the magnitude of the vector?
The magnitude of the vector with components -14.0 units in the x-direction and 5 units in the y-direction can be calculated using the Pythagorean theorem.
The magnitude of a vector represents its length or size. In the xy plane, the magnitude of a vector with components in the x-direction (horizontal) and y-direction (vertical) can be found using the Pythagorean theorem. The theorem states that the square of the magnitude of a vector is equal to the sum of the squares of its components.
For the given vector with components -14.0 units in the x-direction and 5 units in the y-direction, we can calculate its magnitude as follows:
Magnitude = sqrt(\(14^{2} } +5^{2}\))
Magnitude = sqrt(196 + 25)
Magnitude = sqrt(221)
Magnitude ≈ 14.87 units
Therefore, the magnitude of the vector is approximately 14.87 units. This represents the length or size of the vector in the xy plane, taking into account its components in the x and y directions.
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what is one limitation of using a saltwater aquarium to model the ocean?
A. It can show only a small part of the actual ocean.
B. It can show how different ocean animals interact with each other.
C. It can show how certain plants grow in the ocean.
D. It can show how light affects ocean organisms.
Using a saltwater aquarium to model the ocean has limitations, such as showing only a small part of the actual ocean and being unable to replicate the vastness and complexity of the ocean ecosystem.
Explanation:One limitation of using a saltwater aquarium to model the ocean is that it can only show a small part of the actual ocean. Since an aquarium is confined and limited in size, it cannot realistically replicate the vastness and complexity of the ocean ecosystem. For example, it may not have the space to accommodate large marine animals like whales or the turbulent currents that exist in the open ocean. Therefore, it is important to recognize that while a saltwater aquarium can provide some insights into the ocean, it cannot fully capture the dynamic nature and diverse interactions found within the entire ocean ecosystem.
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Identify the type of reaction (combustion, synthesis, decomposition, single replacement, or double replacement) this equation represents.
CH4 + O2 CO2 + H2O
Answer:
Combustion
Explanation:
The difference(s) between recirculating aquaculture systems (RAS) and net pen
aquaculture operations is/are that
A) unlike net pen aquaculture, RAS operations are very limited in the type of
fish they can culture; most fish, especially the commercially profitable
species, do not do well in enclosed facilities.
B) RAS facilities are more habitat-friendly than net pen farms, which displace
wetland ecosystems, such as mangrove swamps, in coastal areas.
C) in contrast to net pen aquaculture, RAS operations are low-tech and easy
to set up.
D) since RAS operations are very labour-intensive, they are better suited than
net pen systems for developing countries, where labour is cheap and the
market for farm-raised fish is large.
E) net pen aquaculture, being biosecure, poses a much lower risk regarding
the escape of non-native species than do RAS operations.
The difference(s) between recirculating aquaculture systems (RAS) and net pen aquaculture operations is/are that B) RAS facilities are more habitat-friendly than net pen farms, which displace wetland ecosystems, such as mangrove swamps, in coastal areas.
RAS are closed-loop systems that reuse water and have a lower environmental impact compared to net pen aquaculture operations. Net pen operations can displace natural habitats, cause pollution, and spread diseases to wild fish populations.
Summary: The key difference between RAS and net pen aquaculture is that RAS is more environmentally friendly, while net pen operations can have a greater negative impact on ecosystems.
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Which claim explains what happens a transform tectonic plate boundary
Answer:
Two tectonic plates move horizontally past one another along Earth’s surface, forming long fault lines.
Answer:
Plates move apart
Explanation:
At a transform boundary, plates move apart. At a divergent boundary, plates separate. Convection currents in the mantle contribute to tectonic plate movement.
Calculate What is the change in speed of the P
wave as it goes from the mesosphere to the outer
core? From the outer core to the inner core?
lithc
asthenosphere
Which one of the following is NOT acceleration
A.
a change in mass
B.
a change in direction
C.
an increase in velocity
D.
a decrease in velocity
Answer:
change in direction
Explanation:
ans maybe correct
Help meeee
Cody is riding the Super Duper Drop at Six Flags. The ride drops him and he free falls
for 2.6 seconds.
a) What will be his final velocity at the end of the 2.6 seconds?
His final velocity at the end of the 2.6 seconds will be 25.48 m/s
given
time = 2.6 seconds
initial velocity = u = 0
acceleration = acceleration due to gravity = 9.8 \(m/s^{2}\) (since , it is a free fall )
final velocity = ?
using kinematics equation
v = u + at
v = u - g*t
v = - 9.8 * 2.6 = - 25.48 m/s
His final velocity at the end of the 2.6 seconds will be 25.48 m/s in downward direction
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At perihelion, the Earth is 96% of the Earth-sun distance at aphelion. Which of the following statements would be correct?
a-At aphelion, because the gravitational attraction is greater, the speed of the Earth is lower.
b-At aphelion, because the gravitational attraction is lower, the speed of the Earth is higher.
c-At perihelion, because the gravitational attraction is lower, the speed of the Earth is lower.
d-At perihelion, because the gravitational attraction is higher, the speed of the Earth is higher.
At aphelion, the Earth is 96% of the Earth-sun distance at aphelion which means that the correct statement is that at aphelion, because the gravitational attraction is lower, the speed of the Earth is higher and is denoted as option B.
What is Aphelion?
This is referred to as the farthest point in the orbit of a planet such as the earth from the sun.
In a a scenario where the Earth is 96% of the Earth-sun distance at aphelion, then it means that the orbit has almost been completed which means that a high amount of speed was involved in the process.
This is as a result of the gravitational attraction being lower which has an inverse relationship with the speed of the Earth which is why it was higher and is therefore the reason why option B was chosen.
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A 65-year-old man's energy intake should focus on meals:a.) high in calories with nutrient-dense foodsb.) low in calories and high in fiber and meatc.) with a lower caloric density and increased nutrient densityd.) high calorie level for middle age with lowered nutrient density
A 65-year-old man's energy intake should focus on meals c.) with a lower caloric density and increased nutrient density
Calorie density represents a metric that is employed to determine how many calories are contained in a given amount of food. For a 65-year-old male, meals with a lower calorie density and a higher nutritional density would be ideal. People's metabolisms tend to slow down as they become older, so they need fewer calories.
To preserve their health, they still require enough nourishment, though. By choosing foods that are high in nutrients yet low in calories, such as fruits, vegetables, whole grains, lean proteins, and healthy fats, one may meet nutritional needs while limiting calorie intake. Adding more fibre to your diet can also help ya person to lose weight and maintain good digestive health.
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a body moves on to 120 km long track if he moves first 30 km with a speed of 30 km per hour then what is the speed for next 90 so that average speed becomes 60 km per hour
Answer:
90 km/hr
Explanation:
AVERAGE is 60 km/hr so 120 km / 60 km/hr = 2 hours total
first 30 km / 30 km / hr = 1 hour used 1 hour left
now there is 90 km to cover in the second hour
so that must be 90 km/hr
A gust of wind blows an apple from a tree.
As the apple falls, the force of gravity on the apple is 9.16 N downward, and the force of the wind on the apple is 1.87 N to the right.
What is the direction of the net external force on the apple (measured from the downward vertical, so that the angle to the right of downward is positive)?
Answer in units of degrees
The direction of the apple is 78.5 degrees.
What is force?We know that force is that which brings about motion. Force acts on an object when it is stationary and makes it to move or makes a moving object to change direction.
The magnitude and the direction of the vector is regarded as very important when we are trying to solve for a particular vector.
Now we can see that the force of gravity acts vertically while the force that is exerted by the wind acts horizontally. This implies that we now have right angled triangle and the direction of the force could be obtained geometrically as;
tan^-1(9.16 N/ 1.87 N)
= 78.5 degrees
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How can the efficiency of a simple machine be increased?
Answer:
Reduce friction
Longitudinal seismic waves are known as
a primary waves.
b. secondary waves.
surface waves.
d. transverse waves.
Please select the best answer from the choices provided
О А
ОВ
ОС
D
Answer:
A. primary waves
Explanation:
A vector is 14.4 m long and points in a 133 degree direction . Find the y - component of the vector .
Answer:
I put X and Y components so make sure you pay attention to which is correct for you.
Explanation:
X = -9.82
Y = 10.5
how can I get mass of a liquid whose density is 11gcm-3 and volume of 25cubic metres.
Answer:
here we go
Explanation:
\(density \: = mass \div volume \\ mass \: = density \times volume \\ \\ but \: our \: volume \: is \: in \: cubic \: metres \\ convert \: it \: to \: cubic \: centimeters \\ volume \: = 25 \div {(100)}^{3} \\ = 2.5 \times 10^{ - 5} cm^{3} \\ \\ mass = 11 \times (2.5 \times 10 ^{ - 5} ) \\ = 2.75 \times 10 ^{ - 4} grams\)
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