what's electron affinity? and what is the formula of electric current?
Answer:
Electron affinity is the energy change that results from adding an electron to a gaseous atom. For example, when a fluorine atom in the gaseous state gains an electron to form F⁻(g), the associated energy change is -328 kJ/mol.
Give brainliest please.
Answer:
Electron affinity is the energy change that results from adding an electron to a gaseous atom.
Sorry I don't know about the second one.
what is the economic system in the united states?
A. Capitalist economy
B. Stock Market economy
C. Global economy
D. Communist economy
Answer:
A. Capitalist economy
Explanation:
The United States is a capitalist economy. Hope this helps, thank you !!
(03.05 LC)
A. Propane, a renewable resource, is used in some heating systems.
B. Wind power can turn turbines to generate electrical power.
C. Oil, a renewable resource, is processed to make jet fuel.
D. Geothermal power is generated from moving water.
I dont see the question to this
Answer:
The correct answer would be B
Explanation:
I took the test and we use wind and turbines to create a renewable energy source.
Of the following reactions, which is a fusion reaction?
a.
uranium-235 absorbing a neutron and splitting into xenon-140, strontium-94, and two neutrons
b.
hydrochloric acid combining with sodium hydroxide to form a salt and water
c.
carbon-14 decaying into nitrogen-14 and a beta particle
d.
curium-246 combining with carbon-12 to form nobelium-254 and four neutrons
Answer:
Option D is correct.
Explanation:
It is fusion reaction.because curium combines with carbon to form a big nuclei of nobelium.[tex]Cm_{246} +C_{12}[/tex] → [tex]No_{254}[/tex]
Hence, it is the fusion reaction.
What is fusion?When two or more nuclei fuse together to form a heavy nucleus with the energy released, is called fusion.
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What is the mass of an object that requires a force of 4,900 Newton's to accelerate 7 m/s/s
Answer:
Explanation:
Formula
F = m * a
Givens
F = 4900
a = 7 m/s^2
Solution
4900 = m * 7 Divide by 7
4900/7 = m
700 kg = m
A- Lunar Eclipse
B- Neap Tide
C- Spring tide
D-Solar tide
D Solar tide
Explanation:
Because d is closer to the sun
What moon phase is shown in the picture ?
the answer is waxing gibbous moon
Explanation:
.
what moon phase will occur about 14 days after a first quarter?
Answer:
waxing gibbous is the answer.
my gosh im in fifth grade and need an answer stat dude what causes lightning
A. build up of electrical charges in the clouds
B. flow of electrical charges among clouds
C. light energy created in the clouds
D. reflection of light in the clouds
Answer:
it's either A or B because lighting is an electrical discharge caused by imbalance between storm clouds and the ground
Explanation:
pretty sure it's A though
6. Dentists use a soft, clay-like material to make a filling for a cavity. The filling stays soft under the
light of the dentist's lamp, but it hardens when the dentist shines an ultraviolet flashlight on it. Why
does light from the ultraviolet flashlight harden the filling when light from the lamp does not?
Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not.
What is ultravoilet ray?Ultraviolet Rays in the electromagnetic Spectrum Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.
Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of Vitamin C.
Because ultraviolet light may be absorbed by the filler substance, but not by the lamp's light. Because UV light extracts energy from the filler substance while lamp light does not,
Hence light from the ultraviolet flashlight harden the filling when light from the lamp does not.
To learn more about the ultravoilet ray refer to thr link;
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A car has a momentum of 10,000 kg x m/s and has a mass of 800kg what's the car velocity
Answer:
Explanation:
Momentum P=mass×velocity
1000=800×velocity
1000=800V
V=1000/800=2.5m/s
why would you want to know the speed of an object
Answer:
Because when something is moving such as a car if your going too fast there could be a crash or collision.
Explanation:
A force of 162 N is applied to an object causing it to accelerate at a rate of 3.8 m/s^2. What is its mass?
A. 0.2 kg
B. 616 kg
C. 43 kg
D. 102 kg
Answer:
43 kg
Explanation:
Force (F) = 162 N
acceleration (a) = 3.8 m/s²
mass (m) = ?
We know
F = m * a
162 = m * 3.8
m = 162 / 3.8
m = 43 kg
It's mass is 43 kg.
Hope it will help you :)
A person drops a ball off the top of a 10 story building. What statement below best describes the movement of the ball?
Most helpful Answer~
There are no options~
Anyway If the ball is of bad quality it will get deflated/ or strike out.
' The must reasonable thing that could happen is that the ball will bounce'
*Smile* :)
If 10 crests and 10 troughs pass through a point in 5 seconds. Calculate its time period and frequency?
Answer:
frequency = 5 /s
period = 0.5 s/
Explanation:
number of revolution = 10+10/2 = 20/2 = 10
frequency = n/t = 10/5 = 5 /s
period = t/n = 5/10 = 0.5s
ill give brainliest,
Nascar fans love race day when they get a chance to pull for their favorite drive. If a driver was able to travel 600 miles in 3 hours, what was his/her average speed?
What happens to the molecules when the solid changes phase?
they begin to move quickly and can break away from other molecules
Answer:
When solid changes atoms/molecules begin to speed up and move around. Compared to when they are in the solid phase, where they barely move and are slow and are compacted.
What are the dangers of a thunderstorm and how do you stay safe during the thunderstorm?
Answer:
you get struck by lightning
Explanation:
hide in ur house
HELP PLEASE!!!
Gravity helps us watch television, talk on the phone, and use the Intemet.
Explain whether this statement is true or false.
Support your answer with evidence from the text.
Answer:
Technically yes, it does help those objects not to float away, but that is false. gravity is not the factor that lets us watch tv, talk on the phone etc.
Gravity helps us watch television, talk on the phone, and use the Internet. This is true statement.
What is the process of satellite orbiting?The goal of satellites is to achieve balance. They rotate around the globe quickly enough to avoid being entirely drawn down into the planet's center of gravity, yet slowly enough to avoid drifting out into space.
When a satellite is travelling at the right speed, the earth's gravitational attraction is just strong enough to keep it in place. A satellite must move quicker to maintain orbit the nearer it is to the earth's surface. Additionally, satellites' orbits are circular or elliptical due to the continual pull of the curved surface of the planet.
Therefore, gravity plays a crucial role in our daily lives, whether it's keeping us anchored to the planet's surface or keeping the satellites we use to communicate and learn more about our environment in orbit.
Learn more about satellite here:
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A boiler is being used to heat water. The graph shows the temperature of
the water every 5 minutes.
a. What state is the water in between points Q and R?
b. At which point does the water begin to boil?
c. What state is the water in at 110°c?
Answer:
a. Liquid state
b. At point R. The physical state of water at its boiling point temperature of 100 degree Celsius will be both liquid state as well as gaseous state.
c. at 110 degrees it is in gaseous state
What are the dangers of a hurricane and how do you stay safe during the hurricane
Answer
hdhcu very much xbeyxbuxbduxb shx
The photo shows a toy spring. What kind of energy does the toy have because of its shape?
Answer:
elastic
Explanation:
if you stretch it it will go back to its shape, and also it is the only one that makes sense.
Answer:
Elastic
Explanation:
I got it right
You are training to run the 100 m race at a track and field meet.You time yourself and find you can run it in 10 seconds. How fast are you abke to run it
Answer:
[tex]10\ \text{m/s}[/tex]
Explanation:
[tex]s[/tex] = Displacement = [tex]100\ \text{m}[/tex]
[tex]t[/tex] = Time taken = [tex]10\ \text{s}[/tex]
Velocity is given by
[tex]v=\dfrac{s}{t}\\\Rightarrow v=\dfrac{100}{10}\\\Rightarrow v=10\ \text{m/s}[/tex]
The person is able to run at a speed of [tex]10\ \text{m/s}[/tex] in order to complete the race in the given time.
A car is travelling to the right with a speed of 40 m/s when the driver slams on the brakes. The car skids for 4 s with constant acceleration before it comes to a stop. What was the rate of the car's acceleration as it skidded to a stop?
Answer:
10m/s^2
Explanation:
Given data
velocity= 40m/s
time= 4 seconds
Acceleration a =????
We know that
a= velocity/time
substitute
a=40/4
a= 10m/s^2
Hence the acceleration will be 10m/s^2
What happened when red light and cyan light combine, what colour of light results?
Answer:
I'm pretty sure it makes a white light... i could be wrong and sorry if I am
Sorry if it’s a bit blurry. But thanks for answering if you do!
What is the smallest, most basic level of organization in an animal or
plant?
Answer:
hhmmmmmhmmmm hmhmmmm hmmm yeah i got nothing
Explanation:
What is the relationship between the mass of the objects and the force exerted?
Answer:
Objects with mass exert forces on each other via the force of gravity. This force is proportional to the mass of the two interacting objects, and is inversely proportional to the square of the distance between them. The factors G, M, and r are the same for all masses at the surface of the Earth.
If the force of gravity was suddenly removed between the earth and sun, how would Earth move?
Group of answer choices
The sun would fly off into space.
The Earth would fly off into space in a straight line.
The Earth would fly off into space in a curved path.
The Earth would fall into the sun.
Answer:
the earthe would fly off into space in a straight line
What equations would you use to find force?
Answer:
F = m x a
Explanation:
F = force
m = mass of an object
a = acceleration