Which vector below goes from (0, 0) to (-2, 3)?
Answers
Related Questions
Which of the following is a purpose of rules in sports and games? (5 points)
Answers
Answer:
To keep everyone safe
Explanation:
Without rules people could get hurt
What happens when you cut a magnet
in half?
Answers
A wave is traveling at the speed of light. If it has a frequency of 4 x 10^15 Hz, what is its wavelength?
Answers
Answer:
7.5x10-^8m
Explanation:
the formulae is v=fh ,where f is frequency
h is wavelength
hence wavelength=v/f
since the speed of light is 3x10^8
then the wavelength =3 x 10^8/4 x 10^15
=7.5x10^-8m
WHAT IS THE DENSTY OF ALL THE LAYER IN THE ATMOSPHERE
Answers
Answer:
The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.
Explanation:
The troposphere contains roughly 80% of the mass of Earth's atmosphere. The troposphere is denser than all its overlying atmospheric layers because a larger atmospheric weight sits on top of the troposphere and causes it to be most severely compressed.
The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.
Which of the following is a balanced equation? *
A Na +F-> NaF
B H2+02 -> H2O
C Ca + Br --> CaBr2
D Na + C12 --> NaCl
Answers
Answer:
maybe A is balanced
Explanation:
Na+F----->Naf
Some help please :)
At which stage in the life cycle of a star is helium combined to form elements lithium through iron? Explain.
Answers
Answer:
Explanation:
During the formation of the universe some 14 billion years ago in the so-called ‘Big Bang’, only the lightest elements were formed – hydrogen and helium along with trace amounts of lithium and beryllium. As the cloud of cosmic dust and gases from the Big Bang cooled, stars formed, and these then grouped together to form galaxies.
Why can scientists ignore the gravitational force when
studying the physies of an atom?
Answers
Answer:
When studying atoms, scientists can ignore the Gravitational force between charged particles that make up the atoms because it is many millions of times smaller than other forces in the atom. Explanation: Scientists can ignore the gravitational force because the gravitational force is considered to be negligible as compared to the other forces due to its smaller value.
A boy is looking into a plane mirror .His nose is 30 cm in front of the mirror .How far is his nose from where its image appears to be ?
Answers
Answer:
60cm
Explanation:
30+30=60
What do supernova have to do with heavy elements?
Answers
Answer:
When a star dies, it is called a supernova. A supernova contains massive amounts of energy, and the hydrogen and helium that was originally in the star turns into heavier elements ranging from oxygen to iron to gold.
Let me know if this helps!
Answer:
Read Below
Explanation:
During the supernova nucleosynthesis, the r-process creates heavy isotopes, which decay after the event to the first stable isotope, thereby creating the neutron-rich stable isotopes of all heavy elements. The neutron capture occurs in high neutron density with high-temperature conditions.
Which sport requires the least amount of agility? HELLLLPPP
1.volley ball
2.golf
3.football
4.basketball
Answers
Answer:
golf
Explanation:
it's less physical strength in more of you hitting the ball with whatever the stick is called
When a roller coaster speeds up going down I hill, what type of energy it that?
Answers
Answer:
The potential energy of the roller coaster increases as the coaster goes up a hill and can be converted to kinetic energy.
A child pulls on wagon with force of 20 N if the wagon models a total of 10 M in four seconds what is the average power generated by the child in watts
Answers
Answer:
[tex]power = \frac{(force \times distance)}{(time)} \\ power = \frac{(20 \times 10)}{4} \\ power = \frac{200}{4} \\ power = 50 \: watts[/tex]
What type of friction is it when two students are pushing a box that is at rest
Answers
If the rocket launches with a force of 10N, what is the force on the launch pad?
Answers
Answer:
10N
Explanation:
Action and Reaction forces state that the force will be equal
Electromagnetic Spectrum Lab Report
if you've done this assignment or know what im talking about please helps me! if you get it correct i will give you brainliest!!!!!!!!!!!!!
Objectives(s):
In your own words, what is the purpose of this lab?
Hypothesis:
In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.
Answers
The dependent variable is the one that changes as a result of the independent variable. The spectrum emitted by the unknown celestial object in this situation.
What is the electromagnetic spectrum?The electromagnetic spectrum refers to the variety of frequencies (the spectrum) of electromagnetic radiation, as well as the wavelengths and photon energies associated with each frequency.
The goal of the electromagnetic spectrum experiment is to determine what elements are present in the atmospheres of the planets and moons by examining their absorption spectrums.
The electromagnetic spectrum encompasses electromagnetic waves with frequencies ranging from below one hertz to above 1025 hertz,
The frequency corresponds to wavelengths ranging from thousands of kilometers to a fraction of an atomic nucleus's size.
The electromagnetic waves within each frequency band are given various names, starting at the low frequency (long wavelength) end of the spectrum.
Hence the dependent variable is the one that changes as a result of the independent variable.
To learn more about the electromagnetic spectrum refer to the link;
https://brainly.com/question/15576247
Answer:
Explanation: Electromagnetic Spectrum Lab Reportif you've done this assignment or know what im talking about please helps me! if you get it correct i will give you brainliest!!!!!!!!!!!!!Objectives(s):In your own words, what is the purpose of this lab?Hypothesis:In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Yub87654d HELP there is this person trying to kid,.,nap,./, kids so if you see an account called Hernyana report there questions and there account
copy my question and post it
76ryvubiuoj78
Answers
Answer:
what???
Explanation:
How fast does a 500.0 Hz sound wave travel in air if its wavelength is 0.68 m?
Answers
Hello,
QUESTION)✔ We have : λ = T x v ⇔ v = λ x f
v = 500 x 0,68 v = 340 m/sThe speed of this sound wave is therefore 340 m/s.
1. A car interior is heated to 48 C by the sun What type of energy transfer?
Answers
Which force is sometimes attractive and has an infinite range?
A.strong nuclear
B.weak nuclear
C.gravitational
D.electromagnetic
Answers
Answer:
C. gravitational
Explanation:
Answer:
c
Explanation:
edge
how much force is needed to accelerate at 66 kg skier 4m/s^2 ?
Answers
1.2
m
s
2
is 81.6 Net forces.
Explanation:
Take the mass(68kg) and the acceleration of the skier(
1.2
m
s
2
) and multiply them together
how does an a.c generator work?
Answers
Radio waves travel at the speed of light. How long would it take the Russians
to send a message to a spacecraft orbiting Mars at a distance of 7.8 x 10^10 m
from Earth?
Answers
Answer: you can call you when you can get me a call and I have to go back your mom I don’t have a lot to say about that because you don’t want me a little more because you have a lot to me because I have to do it I have a lot to say about it I have a good day and you don’t have a good day and you have a lot of fun with your family I don’t want you have a good night I love your day you ty me you don’t want me a good night to me a little about me you don’t have a good day I love your day I don’t
Explanation: the app crashes every time I have a good night and a good night out and it is good yuyu Hi hi mom I have to go back and pick you a little little more you have to go back
A 101 Kg racer moves around a flat circular track with a radius of 55 m with a constant speed. The car makes one revolution around the track every 13 seconds. Find the speed of the car.
Answers
Answer:
26.6 m/s
Explanation:
[tex]v = r \alpha \\ v = r( \frac{2\pi}{t} ) \\ v = (55)( \frac{2\pi}{13} ) \\ v = 26.6 \: m {s}^{ - 1} [/tex]
Which of the following would I use to measure the distance across a GALAXY?
A) Astronomical Unit (AU)
C) Kilometer (Km)
B) Light Year (LY)
D) Miles (mi)
Answers
Answer:
B - Light Year (LY)
how to calculate time in uniform electric field using acceleration and distance only
the formula
Answers
Answer:
[tex]t = \sqrt{\frac{s}{a} }[/tex]
Explanation:
In order to find the time in a uniform magnetic field in terms of acceleration and time we will use the general formula of acceleration, which is given as follows:
[tex]a = \frac{v}{t} \\\\where,\\\\a = acceleration\\v = velcoity = \frac{s}{t} \\\\t = time\ taken\\s = distance\ covered\ in\ the\ field\\\\therefore,\\\\a = \frac{s}{t^2}\\\\t^2 = \frac{s}{a}\\\\t = \sqrt{\frac{s}{a} }[/tex]
This formula can be used to measure time in a uniform electric field in terms of distance and time only.
A.She says that as increase in pressure increases the volume of helium gas.
B.She says that a decrease in pressure decreases the volume of helium gas.
C. She says that a decrease in temperature increases the volume of helium gas.
D. She says that an increase in temperature increases the volume of helium gas.
Answers
Answer:
c
Explanation:
she say that a decrease in temperature increases the volume of helium gas
Answer: c
Explanation:
The resistance of a 24 W, 12 V filament lamp depends on the current flowing through the lamp. For currents up to 0.8 A, the resistance has a constant value of 2.5 Ω.
Calculate the potential difference across the lamp when a current of 0.8 A flows through the lamp.
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Answer:
V=IR
V=0.8×2.5
V=2V
where V=potential difference
I=Current
R=Resistance
.........
how do we work out the world time zone differences
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A car has a weight of 10 000 N. A man takes 10 seconds to push the car 5 m using a force of 1000 N. calculate the work done
Answers
W=1000x5
W=5000 Nm
Kennedy and Lilly are in science class. They are asked to prove that some forces are non-contact
forces. The girls list five examples of objects exerting a force on each other without touching. Do you
agree with their list? Tell why or why not?
1. Two like magnetic poles repel each other.
2. Putting on a wool sweater can make your hair get static electricity when it rubs against the
sweater.
3. When you bring two negatively charged balloons near each other they push each other away.
4. Magnets stick to a refrigerator.
Number 1 and 3 demonstrate non-contact forces because the magnets or electrically charged objects exert
forces on each other without touching.
3 is the only example of non-contact forces since like charges repel each other.
Number 1 and 4 are non-contact forces since they both use magnets.
All four are good examples of non-contact forces since they all use either magnets or electric charge which are
non-contact forces.
Answers
Answer:1,3 and 5
Explanation: