Answer: hope this helps
wrote this last year
Explanation:
Why it is important to study the universe
There are many reasons why it is important to study the universe, such as we would know nothing about zodiac signs, planets, why and how the dinosaurs died. The universe is an interesting place, and so much of it hasn't been explored. NASA (National aeronautics and space administration) is an agency that is responsible for development and research of vehicles and activities in space.
The eight planets in your solar system are:
Jupiter~ named after Zeus the king of the gods.
Mars~ Named after the Roman god of war.
Uranus~ named after the Greek god of the sky ( Zeus. )
Mercury~ named after the Roman messenger god.
Venus~ named after the Roman goddess of love and beauty.
Saturn~ named after the Roman god of agriculture and wealth.
Earth~ is the only planet not named after anybody but its nickname is “the blue planet”
Now if we did not study the universe then how would we know all of that? The universe is a BIG place and we are like Preons ( particles that are the building block to Quarks, Quarks are the particles in protons and neutrons ) compared to the universe.
Did you know that they have discovered an ocean on Jupiter? The ocean on Jupiter is 11 kilometer deep. It has also been discovered that it rains diamonds on Jupiter and Saturn. One thing about the universe that is interesting to me is our moon, the moon comes in many colors such as:
Blue moon
Pink moon
Red moon
Yellow moon
Orange moon
There is also different types of solar eclipse:
Total eclipse~
Partial eclipse~
Annular eclipse~
The moon also has different phases as well:
Waning crescent
Third quarter
Waning gibbous
FULL MOON
Waxing gibbous
First quarter
Waxing crescent
Here is a fun fact about the moon, the moon is neither a star nor a planet, it is a satellite object. The first man on the moon was Neil Armstrong, and he was a part of Apollo 11, and Gemini 8. One of my favorite quotes from him is “ Mystery creates wonder and wonder is the basis of man’s desire to understand.” Did you know that if you go to Death Valley, CA you can see the milky way from earth. One of the things I love about the universe is that it is full of mysteries. Lots of things we don't know about the earth and there are a lot of things we would not know if we didn't study the universe. Zodiac signs are the groups we put everyone in. These groups we are put in are deciphered by what month we are born in. The zodiac signs are what groups we are in according to the universe.
Describe a light wave and explain how light wave travel through solids liquids and gasses
vector ????⃗ has a magnitude of 17.9 and its direction is 80∘ counter‑clockwise from the x- axis. what are the x- and y- components of the vector?
We have vector [tex](17.9*cos80^{0},17.9*sin80^{0})[/tex]
Therefore,
x component = 17.9 * cos80 degree = 3.108
y component = 17.9 * sin80 degrees = 17.628
What is a vector?An object with both magnitude and direction is referred to be a vector. A vector can be visualized geometrically as a directed line segment, with an arrow pointing in the direction and a length equal to the magnitude of the vector. The vector points in a direction from its tail to its head.
If the magnitude and direction of two vectors match, they are the same vector. This shows that if we move a vector to a different location without rotating it, the final vector will be the same as the initial vector. The vectors that denote force and velocity are two examples. The direction of force and velocity are both fixed. The size of the vector would represent the force's strength or the velocity's corresponding speed.
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An astronaut weighs 160 Newtons on the surface of of the moon where the acceleration due to gravity is 1.6 m/s/s. What is his weight on EARTH, where the acceleration due to gravity is 10 m/s/s? Include units in your answer. *
Answer:
The weight of an object with mass M, in a place with gravitational acceleration G, is:
W = M*G
We know that in the moon, with G = 1.6 m/s^2, the weight is 160N
Then we have the equation:
160N = (1.6 m/s^2)*M
With this, we can find the mass of the astronaut.
(160N)/(1.6 m/s^2) = M = 100kg.
Then in the Earth, where the acceleration is G = 10 m/s^2, the weight will be:
W = (10m/s^2)*100kg = 1000 N
An atom has a mass of 24 and a nuclear charge of 12. Which statement about the atom is accurate?
O It has twice as many protons as electrons.
O It has twice as many neutrons as protons.
O
It has equal numbers of neutrons and protons.
O It has equal numbers of nuclear particles and electrons.
The correct answer is It has equal numbers of neutrons and protons.
A characteristic that can be physically determined, the atomic mass of an atom is equal to the total mass of the protons, neutrons, and electrons that make up the atom. The number of protons in the atom's nucleus is indicated by the atomic number. It is equal to the atomic number in value. Moving over the periodic table causes the nuclear charge to grow. The charge is filled when the electrons approach the protons.
The protons and neutrons of an atom are added to determine the mass number. Therefore, the mass number for each atom will be twice the atomic number (number of protons) if the number of protons (atomic number) and neutrons are identical.
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A circular ring of charge with radius b has total charge q uniformly distributed around it. What is the magnitude of the electric field at the center of the ring? (a) 0(b) ke q / b²(c) ke q² / b²(d) ke q²/ b (e) none of those answers
The opposing electric fields cancel each other out at the center of the ring, producing a result of zero. A is the correct response.
What is an electric field?The physical field that surrounds electrically charged particles and pulls or attracts all other charged particles nearby is referred to as the "electric field." It also characterizes the surroundings of a system of charged particles physically.
Given that the ring has a radius of b and a uniformly distributed charge of q all around it, it is perfectly circular.
Given is the electric field that is experienced at the ring's center from opposing directions.
E1 = kₑq/b²
E2 = -kₑq/b²
At the middle, it is exposed to the two opposing electric fields E1 and E2. Thus, the electric field that results is given by:
E = E1 + E2
E = kₑq/b² - kₑq/b²
E = 0
At the center of the circular ring, the opposing electric fields cancel each other out and produce a result of zero.
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AP PHYSICS please answer
the left hand should be positioned at 12 o'clock and the right hand should be positioned at 5 o'clock of the steering wheel. a. true b. false
It is false to say that the right hand should be at 5 o'clock and the left hand should be at 12 o'clock on the steering wheel.
Regardless of which way they're turning, the NHTSA advises drivers to use the areas of the steering wheel between "11 and 8 o'clock" with their left hand and "1 and 8 o'clock" with their right.
Injury prevention is aided by using the push/pull or hand-to-hand steering techniques.
Should you place your hands at 10 and 2?holding the wheel with one hand
Retract your hands. You presumably learned to hold onto the steering wheel with your hands around 10 and 2 o'clock. The National Highway Traffic Safety Administration (NHTSA) currently suggests that drivers place their hands at 9 and 3 o'clock.
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A slinky is traveling down the stairs, like in the video clip below. What is the total KINETIC ENERGY of the slinky at the bottom of the stairs (just before it stops moving) IF the Height of the stairs is 2 meters, the weight of the slinky is 4.41 Newtons, its spring constant is 0.84 N/m, and the distance the slinky is initially stretched (to get it going) is 0.25 meters??
Answer:
8.79 J
Explanation:
Given that a slinky is traveling down the stairs, like in the video clip below. What is the total KINETIC ENERGY of the slinky at the bottom of the stairs (just before it stops moving) IF the Height of the stairs is 2 meters, the weight of the slinky is 4.41 Newtons, its spring constant is 0.84 N/m, and the distance the slinky is initially stretched (to get it going) is 0.25 meters??
Total energy = mgh
Total energy = 4.41 × 2 = 8.82 J
Elastic potential energy = 1/2 × Ke^2
Elastic potential energy = 1/2 × 0.84 × 0.25^2
Elastic potential energy = 0.02625
Also,
Total energy = P.E + K.E
Substitute them into the formula above
8.82 = 0.02625 + K.E
K.E = 8.82 - 0.02625
K.E = 8.79375
K.E = 8.79 J
Therefore, the KINETIC ENERGY of the slinky at the bottom of the stairs is 8.79 Joules approximately
what is the answer for this question (4x³)²
which two statement descibe processes most likely to be involved in the formation of sedimentary rock?
Answer:
Erosion
Explanation:
Sedimentary rocks are created from the build up of sediments, such sediments can be found in stuff like soil, other rocks and many more. Erosion is involved in these type of rocks because the byproduct of erosion are sediments.
Answer:
Rivers... and Windstorms....
Explanation:
I just did it a p e x
Which of the following does not change the resistance of a wire?
1 the medium around a wire.
2 the temperature of a wire
3 the length of a wire
4 the thickness ofa wire
Answer:
1 the medium around the wire
Explanation:
pls mark brainliest it will be my first just pls
The medium surrounding a wire, like the insulating material, doesn't significantly impact resistance, as long as the wire's physical properties and temperature remain unchanged. The correct ans is 1. the medium around a wire.
The option that does not change the resistance of a wire is:
The medium around a wire.
Resistance in a wire is primarily determined by its physical properties, such as length, cross-sectional area (thickness), and temperature.
The temperature of a wire affects its resistance. As temperature increases, resistance also tends to increase.
The length of a wire affects resistance; longer wires offer higher resistance than shorter wires, assuming all other factors remain constant.
The thickness of a wire affects resistance; thicker wires (larger cross-sectional area) offer lower resistance than thinner wires.
The medium around a wire (Option 1) does not change the resistance of the wire. The resistance of a wire depends on its material, length, and cross-sectional area (thickness), which are constant properties of the wire. The medium or environment surrounding the wire, such as air or vacuum, does not directly affect its resistance.
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What is the density of water?
HELPPPP PLEASE!!
Answer:
1g/cm³ or 1000kg/m³ at 4°C
the mass of a high speed train is 4.5 ×× 105 kgkg , and it is traveling forward at a velocity of 8.3 ×× 101 m/sm/s . given that momentum equals mass times velocity, determine the values of mm and nn when the momentum of the train (in kg⋅m/skg⋅m/s ) is written in scientific notation. enter mm and nn , separated by commas.
2. The value of n is 7
What is momentum?Momentum is defined as the product of mass and velocity. It is expressed as
Momentum = mass × velocity
How to determine the value of m and nWe can obtain the value of m and n by simply obtaining the momentum in scientific notation. This is illustrated below:
Mass of train = 4.5×10⁵ KgVelocity of train = 8.3×10¹ m/sMomentum =?Momentum = mass × velocity
Momentum = 4.5×10⁵ × 8.3×10¹
Momentum = 3.735×10⁷ Kg⋅m/s
Thus, the value of m and n are: 3.735 and 7
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What are Prevailing Westerlies? a Calm area with rising air b Wind blowing West to East away from horse latitudes c Wind blowing East to west away from horse latitudes d Air being blown away from the poles
Answer:
b Wind blowing West to East away from horse latitudes
Explanation: prevailing Westerlies are winds which blows away from the horse latitudes, this type of wind blow towards the poles between latitude 30 degrees to latitude 60degrees.
Prevailing Westerlies are known to be strongest in the winter months in the and weakest in the summer months
They are also very strong when the pressures are low over the poles and also very weak when the pressures are high over the poles.
can you please help me
Answer: Don't worry I'm here to save u the answer is lithosphere (D) :D
Explanation: I have once done this question and got it right!
Find the electric field inside a hollow plastic ball of radius r that has charge q uniformly distributed on its outer surface. Give your answer as a multiple of q/ε0.
There is no electric field inside a hollow plastic ball of radius r that has charge q uniformly distributed on its outer surface.
What is Gauss Law?The hollow plastic ball has no electric field inside of it.
There is no charge inside the ball because the charge is only present on the ball's surface.
Gauss's Law
The total charge contained by a closed surface is equal to Q/0 times the electric flux out of the surface, according Gauss's Law. According to mathematics, the electric flux is the result of the electric field E and the surface area A, and is represented as follows:
Electric field E thus equals zero.
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you give a shopping cart a shove down the aisle. The cart is full of groceries and has a mass of 180.0kg. The cart accelerates at a rate of 3.5 m/s². How much force did you exret on the cart?
The amount of force exerted on a cart that is full of groceries of mass of 180.0kg is 630N.
How to calculate force?The force applied on an object can be calculated by multiplying the mass of the object by the acceleration as follows:
Force = mass × acceleration
According to this question, a cart is full of groceries and has a mass of 180.0kg. The force, if cart accelerates at a rate of 3.5 m/s², can be calculated as follows:
Force = 180kg × 3.5m/s²
Force = 630N
Therefore, the amount of force exerted on a cart that is full of groceries of mass of 180.0kg is 630N.
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A person is placed in a large, hollow, metallic sphere that is insulated from ground. (b) Explain what will happen if the person also has an initial charge whose sign is opposite that of the charge on the sphere.
When a person carrying the opposite charge contacts the inner surface of the sphere, the charge jumps to the metal, causing a minor shock.
The charge present on the hollow sphere always remain on its outer surface, and there will be no charge on its interior surface. Because there is no charge on the interior surface of the sphere, touching it will not cause harm. When a person with the opposite sign of the same magnitude charge comes into touch with the sphere, both the sphere and the person are neutralized. It only causes a minor shock when there is difference in magnitude. If no one touches the sphere, the charge on the outside surface will be zero, while the charge on the inside surface will be positive.
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A(n) 6.6 kg bowling ball is rolling towards the bowling pins. If its momentum is 15.9 kg*m/s, how fast is it traveling, in m/s?
Answer:
2.4m/s towards the bowling pins
Explanation:
Given parameters:
Mass of the ball = 6.6kg
Momentum of the ball = 15.9kgm/s
Unknown:
Speed of the ball = ?
Solution:
The momentum is the amount of motion a body posses;
Momentum = mas x velocity
Insert the parameters and solve;
15.9 = 6.6 x velocity
velocity = 2.4m/s towards the bowling pins
conserving fuel is important because burning fuel * 4 points affects the environment. damages the engine. is dangerous in large amoints. is necessary only for long trips.
Conserving fuel is important because burning fuel adversely affects the environment.
How burning fuel affect our environment?When fossil fuels are burned, they release large amounts of carbon dioxide which is a greenhouse gas into the surrounding environment. Greenhouse gases trap heat in the atmosphere that is responsible for global warming. Due to this burning of fuel, a large number of glaciers start melting which leads to drowning of coastal areas and large number of floods.
So we can conclude that Conserving fuel is important because burning fuel adversely affects the environment.
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Please help ASAP! I will give the first answer brainliest!
Answer:
Sorry for being late. Hope this helps
Explanation:
Determine the kinetic energy of a 1000 kg roller coaster car that is moving with speed of 40.0 m/s
Answer:
KE=800,000
Explanation:
The formula for kinetic energy is KE=1/2mv^2 or Kinetic Energy= 0.5*mass*velocity^2
so 1000 is the mass and 40 is the velocity
KE=0.5*1000*40^2
KE=0.5*1,000*1,600
KE=800,000 Joules
A concrete block of mass 35kg is pulled along a horizontal floor with the aid of a rope inclined at an angle of 30⁰ to the horizontal. If the coefficient of friction is 0.75, Calculate the force required to move the block( g = 10 ms⁻²)
A. 401.5 N
B. 226.5 N
C. 211.5 N
D. 245. 7N
Answer:
C. 211.5 N
Explanation:
We included a free body diagram representation of the concrete block. The equation of equilibrium in the x-direction:
[tex]\Sigma F_{x} = P\cdot \cos \alpha -\mu_{k}\cdot N = m\cdot a[/tex] (1)
[tex]\Sigma F_{y} = N + P\cdot \sin \alpha -m\cdot g = 0[/tex] (2)
Where:
[tex]P[/tex] - External force exerted on the block, measured in newtons.
[tex]N[/tex] - Normal force from the ground to the block, measured in newtons.
[tex]\alpha[/tex] - Direction of the external force, measured in sexagesimal degrees.
[tex]\mu_{k}[/tex] - Kinetic coefficient of friction, dimensionless.
[tex]m[/tex] - Mass of the concrete block, measured in kilograms.
[tex]g[/tex] - Gravitational acceleration, measured in meters per square second.
[tex]a[/tex] - Net acceleration of the concrete block, measured in meters per square second.
The minimum force to move block occurs when net force is zero, from (2) we get that the normal force is:
[tex]N = m\cdot g -P\cdot \sin \alpha[/tex]
And by applying this formula in (1), we get that the external force is:
[tex]P\cdot \cos \alpha - \mu_{k}\cdot (m\cdot g -P\cdot \sin \alpha) = m\cdot a[/tex]
[tex]P\cdot \cos \alpha -\mu_{k}\cdot m\cdot g +\mu_{k}\cdot P\cdot \sin \alpha = 0[/tex]
[tex]P\cdot (\cos \alpha +\mu_{k}\cdot \sin \alpha)=\mu_{k}\cdot m\cdot g[/tex]
[tex]P = \frac{\mu_{k}\cdot m\cdot g}{\cos \alpha +\mu_{k}\cdot \sin \alpha}[/tex]
If we know that [tex]\mu_{k} = 0.75[/tex], [tex]m = 35\,kg[/tex], [tex]g = 10\,\frac{m}{s^{2}}[/tex] and [tex]\alpha = 30^{\circ}[/tex]. then the external force is:
[tex]P = \frac{(0.75)\cdot (35\,kg)\cdot \left(10\,\frac{m}{s} \right)}{\cos 30^{\circ}+0.75\cdot \sin 30^{\circ}}[/tex]
[tex]P \approx 211.518\,N[/tex]
The correct answer is C.
what is arthritis
ty for answers
Answer:
That is when your fingers are bent in a weird way and are distorted...
Explanation:
28) What is the net force on this box? *
A- 10 N to the left
B- 10 N to the right
C- 60 N to the left
D- 50 N to the right
Answer:
C- 60 N to the left
Explanation:
there is a 60n arrow to the left of the box
In order to change a 2.15 kg handcart's velocity from 1.2 m/s
east to 1.8 m/s east, what's the magnitude of the impulse that
should be applied to the handcart?
a
38.7 N-s
b 12.9 N-S
2.58 N-S
d 3.87 N-s
e
1.29 N.S
Answer: E 1.29 N•s
Explanation: math
please help me swear will mark you brainiest
plzzzzzzzzzzzzzz
Moment of force = ………….. [1]
Distance between A and M = ………….. [2]
Answer:
(a) Picture Attached
(b)
i. 30 Nm
ii. Distance between A and M = 0.375 m
Explanation:
(a)
The other two forces are as follows:
1. The weight of wheel barrows acting downward at Point m
2. The Normal Reaction acting upward on wheel
These are show in the picture attached in solution.
(b)
i-
Now, for the moment of 20 N force about the point A:
[tex]Moment = Fd\\\\where,\\\\F = Force = 20\ N\\d = perpendicular\ distance between\ force\ and point\ A = 1.5\ m\\Therefore,\\Moment = (20\ N)(1.5\ m)[/tex]
Moment = 30 Nm
ii.
We take the sum of all moments about point A. Taking counter-clockwise direction as positive:
[tex](Weight)(AM) - Moment\ due\ to\ 20\ N Force = 0\\(80\ N)(AM) = (30\ Nm)\\AM = Distance\ between\ A\ and\ M = \frac{30\ Nm}{80\ N}\\\\[/tex]
Distance between A and M = 0.375 m
What is overtraining?
A.
overloading the muscles too often
B.
progressing through exercises too quickly
C.
muscles that aren't adapting quickly enough
D.
when muscles start atrophying
What is overtraining?
A.
overloading the muscles too often
B.
progressing through exercises too quickly
C.
muscles that aren't adapting quickly enough
D.
when muscles start atrophying
Answer:
A. overloading the muscles too often
Overtraining is overloading your muscles.
What is overtraining?
Overtraining refers to a process when a person continue to exercise despite that he has reach the limit of his ability and ignores the signs of and continues to train. Many believe they need to stress their muscles to be morefit and improve their performance.
Therefore, Overtraining is overloading your muscles.
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What resultant force is produced by a vertical force of 60.0N and a horizontal force of 100N
resultant force is produced by a vertical force of 60.0N and a horizontal force of 100N is [tex]20\sqrt{34}[/tex] N
force is produced by a vertical force of 60.0N
force is produced by a horizontal force of 100N
force.- A force is a push or pull of an object.
It is a vector quantity which having magnitude and direction also.
its unit is newton. denoted by capital N.
To find out the resultant of force
R² = ( (60)² + (100)²
R= √(3600 + 10000)
R =[tex]\sqrt{13600}[/tex] N
[tex]R = 20\sqrt[]{34} N[/tex]
resultant force is produced by a vertical force of 60.0N and a horizontal force of 100N is [tex]20\sqrt{34}[/tex]N
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The intensity of a sound wave at a fixed distance from a speaker vibrating at 1.00kHz is 0.600 W/m².(a) Determine the intensity that results if the frequency is increased to 2.50 kHz while a constant displacement amplitude is maintained.
The intensity that results if the frequency is increased to 2.50 kHz while a constant displacement amplitude is maintained is 3.74 W/m².
What do you mean by sound intensity?The power carried by sound waves per unit area in a direction perpendicular to that region is known as sound intensity or acoustic intensity. The watt per square meter (W/m2) is the SI unit of intensity, which also covers sound intensity. One use for this technology is to measure the amount of sound energy present in the air near a listener. Sound pressure and sound intensity are two different physical quantities. Sound pressure, which is correlated with sound intensity, is sensitive to human hearing. While level disparities are referred to as "intensity" differences in consumer audio electronics, sound intensity is a precisely defined quantity that cannot be detected by a straightforward microphone.
I = 2π2ρf2v∆s
Given:
Frequency, [tex]f_{1}=1\;kHz[/tex]
Increased frequency, [tex]f_{2}=2.50\;kHz[/tex]
Intensity at first, [tex]I_{1}=0.6\;W/m^{2}[/tex]
We know that,
[tex]I \propto f^{2}\;A^{2}[/tex]
Here, constant displacement amplitude is maintained,
[tex]A_{1}= A_{2} =A[/tex]
Therefore,
[tex](\frac{I_{2} }{I_{1} } ) = (\frac{f_{2} }{f_{1} } )^{2} \;(\frac{A }{A })^{2}[/tex]
Substitute the known values in the above equation,
[tex](\frac{I_{2} }{0.65} ) = (\frac{2.4}{1} )^{2}[/tex]
By solving the above equation, we get
[tex]I_{2}=3.74\;W/m^{2}[/tex]
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