Answer:
Venus
Explanation:
It has the most atmospheric gas, and it’s made up of 96% of Carbon Dioxide and around 3.5% of molecular nitrogen.
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Which characteristic do all of the outer planets have in common?.
Answer:
Composition of hydrogen and helium is common in all outer planets. The inner planets are marked by features such as small size which is of rocks. On other hand, outer planets are characterized by features such as huge size due to composition of hydrogen and helium gases.
Explanation:
Answer:
They are mostly made up of hydrogen and helium.
Explanation:
an object from 10.0 meters. She knows it had 50.0 joules of potential energy. How much mass does it have?
Answer:
5N
Explanation:
Work done by a constant force is given by the following equation:
W=F⋅d⋅cos(θ)
where F is the applied force, d is the distance over which the force is applied, and θ is the angle between the force and displacement vectors.
In this case, the work is done by gravity, and as the object is assumed to fall straight down, θ=0^o.
We know that the force of gravity acting on an object can be expressed by FG=mg, and for an object which is not accelerating (e.g. a stationary object), this is equal to the object's weight.
We know d=10m,θ=0^o and W=50J, so we can solve for F to find the object's weight. ⇒F=Wdcos (θ) But cos (0^o)=1, so: F=Wd=50J10m=5N
Which of the following is not true about tectonic plates
Answer:
Scientists have identified about a dozen major and several minor tectonic plates
A net force of 15N is applied to a cart with a mass of 5kg. What is the
acceleration of the cart?
Answer:
3 m/s^2
Explanation:
Simply F = ma
15 = 5 a
a = 3 m/s^2
Help, Please.
A, B, C, or D
Answer:
B
Explanation:
Answer:
B
Explanation:
A momentum does not stop it is conserved
C momentum is a vector quantity while energy is a scalar there is a difference
D momentum can't be formed a new it is still conserved
Seth and Diana were asked to be the leaders for a game of tag during recess at school. Seth and Diana can ensure that all interested students get a chance to participate equally regardless of ability to run fast by having the: Tagged players sit out until the next game starts Tagged players perform a fitness activity then return to the game Two youngest students be the taggers Two fastest students be the taggers
Answer:
B
Explanation:
did this yesterday with my friend
Answer: Tagged players perform a fitness activity
Explanation: Proof of validity is shown below.
HELP ME PLEASEEEE ILL GIVE BRAINLY
Answer:
Labeling from top left to bottom right
A) transmission - direct light being transmitted as direct light
B) reflection - light being reflected back
C) refraction - incident light being refracted
D) diffraction - diffracting slit shown
E) absorption - light absorbed and reemitted
F) scattering - light scattered in different direction
Adaptations are unique traits developed by organisms to help them survive, thrive, and reproduce in their particular environment. Adaptations may be structural or behavioral. Which of the following is an example of a behavioral adaptation?
A) shallow roots of cacti
B) long neck of a giraffe
C) migration of birds
D) webbed feet of ducks
Answer:
its c - the migration of birds
Explanation:
i did it on study island
a huge rock out of skateboard gets so hard during the day they can't sit on it from ______.
1) convection
2) conduction
3) radiation
Answer:
2 conduction
Explanation:
Answer:
2) conduction
Explanation:
They can't sit on it due to the heat that is felt as soon as a person comes in contact with itThis is commonly known as "conduction"The emf of a battery is E = 20 V . When the
battery delivers a current of 0.2 A to a load,
the potential difference between the terminals
of the battery is 18 V volts.
Find the internal resistance of the battery.
Answer in units of Ω.
Answer:
10 ohms
Explanation:
V = IR
2 v is the drop in the battery
2 = .2 R
R = 10 ohms
Questions #4, 5, and 6:
Part 1 of 3: Two moles of helium gas initially at 335 K and 0.58 atm are compressed isothermally to 1.44 atm. Find the final volume of the gas. Assume that helium behaves as an ideal gas. The universal gas constant is 8.31451 J/K · mol. Answer in units of m³.
Part 2 of 3: Find the work done by the gas. Answer in units of kJ.
Part 3 of 3: Find the thermal energy transferred. Answer in units of kJ.
For two moles of helium gas initially at 335 K and 0.58 atm are compressed isothermally to 1.44 atm, The solutions are is mathematically given as
V2=0.03818 m3W=-5.065KJQ =5.065 KJWhat is the final volume of the gas?Generally, the equation for the Ideal gas law is mathematically given as
PV=nRT
Therefore
V1=2*8.31451*335/(0.58*1.01325*105)
V1=0.09479 m3
Also
V2=V1*(P1/P2)
V2 =0.09479*(0.58/1.44)
V2=0.03818 m3
b)
W=nRTLn(V2/V1)
W=2*8.31451*335*Ln(0.03818/0.09479)
W=-5.065KJ
c)
In conclusion, Heat energy
Q=-W
Q =5.065 KJ
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PLEASE SOMEONE HELP!! what is the answer? WILL MARK BRAINLIEST!!
Answer:
A.
Explanation:
The answer should be A.
i apologize if it is incorrect-
I hope it helps! Have a great day!
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For added effect, he takes the monitor up to the roof which is about 84 m above the ground. What is the velocity of the monitor as it hits the ground?
The velocity of the monitor as it hits the ground is equal to 40.58 m/s.
Given the following data:
Height = 84 meters.Scientific data:
Acceleration due to gravity (g) = [tex]9.8 m/s^2.[/tex]How to calculate the velocity.In accordance with the law of conservation of energy, the potential energy possessed by the monitor at the roof top would be equal to the kinetic energy possessed by the monitor at the ground:
[tex]PE=KE\\\\mgh=\frac{1}{2}mv^2\\\\2mgh=mv^2\\\\V=\sqrt{2gh}\\\\V=\sqrt{2 \times 9.8 \times 84}\\\\V=\sqrt{1646.4}[/tex]
V = 40.58 m/s.
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How does valles marineris differ from the grand canyon?.
Explanation:
Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep.
Which nasa spacecraft is studying jupiter and its moons?.
Answer:
Juno
Explanation:
The NASA spacecraft Juno (2016) is the one that was studying Jupiter more in detail.
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a roller coaster of mass 2000kg is rolling down a track with an instantaneous speed of 10m/s
The given is:Mass – 2000 kg
The given is:Mass – 2000 kgInstantaneous speed – 10 meter per second
Step: 1Step: 1K.E= 1/2mv^2
Where, K.E – Kinetic energy in joules:
m – Mass in kg
v – Velocity or speed in meter per second
Step: 2From the give,
m = 2000 kg
v = 10 m/s
Equation (1) becomes,
K.E= 1/2 (2000) (10)^2
= (0.5)(2000)(100)
= 100000
K.E = 100,000 Joules
The kinetic energy is 100,000 Joules, if a roller coaster of mass 2000 kg is rolling down a track with an instantaneous speed 10 m/s.
Describe mathematically how two distinct waves each with wave functions like the one in eq. 2 – call them y1 and y2 – will combine. We call this interaction the principle of superposition.
The resultant wave of the different wave functions is = y1 + y2
Calculation of the resultant wave functionsThe principle of superposition states that two waves moving through the same medium, the resultant value of the wave function is the sum of the different wave functions.
Waves superimpose by adding their disturbances,each disturbance corresponds to a force, and all the forces add.
Therefore, the resultant wave of the different wave functions is the addition of both wave functions which is = y1 + y2.
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Ayo? i need help asap
Let's do some calculation! Using the information below, calculate the speed of the wave. MAKE SURE TO INCLUDE YOUR UNITS!
wavelength = 2.3 cm and frequency = 3.7 Hz
You travel 200 kilometers in the first two hours. During the next hour, you stop for lunch and only travel 25 kilometers. What was your average speed?
Answer:
75 km/hour
Explanation:
Total distance travelled= 200+25 = 225 km
Total time= 2+1 hours = 3 hours
Average speed= Total Distance/Total time = 225/3 = 75 km/hr
A block of mass 3. 0 kg is hung from a spring, causing it to stretch 12 cm at equilibrium, as shown above. The 3. 0 kg block is then replaced by a 4. 0 kg block, and the new block is released from the position shown above, at which the spring is unstretched. How far will the 4. 0 kg block fall before its direction is reversed?.
Based on the length of the spring and the mass of the block, the distance the 4.0 kg block can fall before a reversal in direction is 32 cm.
How do we arrive at 32cm?Because energy is conserved, the distance the block can drop can be found as:
Mass x gravity x distance = (1 / 2) x spring constant x distance ²
Spring constant:
= (Mass x gravity) / distance
= (3 x 9.8) / 12
= 2.45 cm
Distance is:
Mass x gravity x distance = (1 / 2) x spring constant x distance ²
distance = (2 x Mass x gravity) / spring constant
= (2 x 4 x 9.8) / 2.45
= 32 cm
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What is the definition of a surface wave?
Answer:
A surface wave is a wave that travels on the crust of the earth after an earthquake; surface waves cause the destruction of an earthquake
Explanation:
A surface wave is a wave that travels on the crust of the earth after an earthquake; surface waves cause the destruction of an earthquake
What conditions are necessary for total internal reflection to occur?.
Answer: When a ray of light travels from an optically denser medium to an optically rarer medium and is incident at an angle greater than the critical angle for the two media, the ray totally reflects back into the medium, obeying the laws of reflection. This phenomenon is known as the total internal reflection.
Explanation:
Which changes in an electric motor will make the motor stronger? select 3 options. using a stronger permanent magnet using a weaker permanent magnet increasing current in the electromagnet decreasing current in the electromagnet increasing the distance between the magnets decreasing the distance between the magnets
1. Using Strong Permanent. 2. increasing the current. 3. Decreasing the space between Magnets
Explanation:
Brainiest
The changes that make the motor stronger will be using strong permanent magnets, increasing the current, and decreasing the space between magnets.
What is an electric motor?An electric motor is a mechanism that turns electricity into mechanical energy.
The interaction between the motor's magnetic field and electric current in a wire winding generates force in the form of torque imparted to the motor's shaft in most electric motors.
An electric generator is physically equivalent to an electric motor, but it converts mechanical energy into electrical energy using a reversed flow of power.
When string magnets are used, a strong flux is produced, and the motor becomes more powerful. Internal flux has a significant impact on coil strength.
Increasing current results in greater power. In the same way, shortening the distance between magnets makes the motor stronger by increasing flux and torque.]
Hence the changes that make the motor stronger will be using strong permanent magnets, increasing the current, and decreasing the space between magnets.
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What would happen to jupiter if we could somehow double its mass?.
Answer:
G M m / R^2 attraction of Jupiter to sun where m is mass of Jupiter
m V^2 / R centripetal force acting on Jupiter
R = G M / V^2
The radius would be unchanged, and its orbit would be unchanged
A truck covers a distance of 360 km in 5 hrs. Find its speed
Answer:
72 km / hour
Explanation:
Speed equals to distance over time. We are given distance equal 360 km and time in 5 hours.
Hence:
[tex]\displaystyle \large{s=\frac{360}{5}}\\\displaystyle \large{s=72}[/tex]
Therefore, the speed is 72 km / hour.
Notes
Sometimes, speed is defined as ‘v’ while velocity is defined as ‘v vector’ indicating that velocity is speed with direction and speed is just velocity with only magnitude.
__________________________________________________________
Describe the rise and fall of a basketball using the concepts of kinetic energy and potential energy.
Answer:
in the beginning the kinetic energy is at a maximum level because the starting velocity is high comparatively.. and because of the gravitational acceleration acting on the ball in the opposite direction the kinetic energy drops proportionally because of the velocity drop. after the ball reaches it's maximum height the potential energy of the ball is high because of the height.. and again the kinetic energy starts to build because the ball again starts to fall down..
Explanation:
Hope this was helpful
Why are alloys made from many metals
Answer:
It add strength to the metal, along with other enhanced chemical properties. Hardness, machinability, and corrosion resistance are other properties that can be added or enhanced by creating an alloy.
I hope my answer helps you.
Which graph shows an object with constant acceleration?
A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 10, and velocity in meters per second on the y axis, numbered 0 to 50. A line starts at the origin and goes to (4, 40), then a line from (4, 40) to (9, 40) and a line from (9, 40) to (10, 0).
A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 5, and velocity in meters per second on the y axis, numbered 0 to 10. A line starts at (0, 10) and ends at (5, 0).
A graph titled Velocity versus Time shows time in seconds on the x axis, numbered 0 to 5, velocity in meters per second on the y axis, numbered 0 to 35. A curved line starts at the origin and arcs up to (4.3, 35).
The graph in the question that represents an object with constant acceleration is : Graph A
Description of constant accelerationAcceleration is the change in velocity with time. For graph A the acceleration remained constant as the velocity of the object did not change with the change in time. As the time changes from 4 to 9 seconds the velocity of the object remained at 40 before decelerating to 0. This shows that the acceleration of the object was constant.
Hence we can conclude that The graph that shows an object with constant acceleration is : Graph A
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Which expression emphasizes the understanding that light can act in one of two different ways, depending on the situation?(1 point)
wave-particle duality
photoelectric effect
equal and opposite reasoning
least common denominator
Answer:
wave-particle duality
Explanation:
Answer:
1. How do scientists support claims about different models of light? (Answer: They collect evidence and make sure that the model)
2. In the photoelectric effect, electrons are ejected by matter (Answer: The energy from the waves of light coming from bright lights)
3. Light can be passed through two slits and projected onto a screen. (Answer: The spots are the result of interference, which happens with waves but not particles.)
4. Light travels from the stars to Earth. As light travels, it moves through etc etc... (Answer: This is not something that waves do because they need a medium to travel through)
5. Which expression emphasizeemphasizes the understanding that light can act in one of two (Answer: Wave-particle dualitduality)
6. Which is a statement of reasoning about the two-slit interference experiment? (Answer: When the electromagnetic wave peaks overlap)
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Use the table to answer the question.
Planet
Estimated Mass of Planet (1024 kg)
Venus
4.87
Mars
0.642
Jupiter
1.898.0
Neptune
102.0
A spacecraft flies within 500.000 km of each of these planets. Which one would gravitationally attract the spacecraft the most?
3
Venus
Mars
Jupiter
Neptune
Answer:
Jupiter is by far the largest.
G = K M / R^2 = K C M since R is given as 5E5 km
G = gravitational attraction