Answer:
laws describe what happens but theories explain why or how
Hi hello
What is strong nuclear force ?
Answer:
Strong Nuclear Force: It is the attractive force between protons and neutrons in a nucleus.It is charge- independent and acts equally between a proton and a proton, a neutron and a neutron, and a proton and a neutron.
Answer:
In nuclear physics and particle physics, the strong interaction is one of the four known fundamental interactions, with the others being electromagnetism, the weak interaction, and gravitation
Explanation:
thank for points
What is a description for this lionfish?
the lionfish, a longstanding showstopper in home aquariums, is a flourishing invasive species in U.S. Southeast and Caribbean coastal waters. This invasive species has the potential to harm reef ecosystems because it is a top predator that competes for food and space with overfished native stocks such as snapper and grouper. Scientists fear that lionfish will also kill off helpful species such as algae-eating parrotfish, allowing seaweed to overtake the reefs. In the U.S., the lionfish population is continuing to grow and increase its range. This is largely because lionfish have no known predators and reproduce all year long; a mature female releases roughly two million eggs a year.
What is the difference between a hypothesis and a theory?
Answer:
a hypothesis is an assumption made before any research has been completed for the sake of testing (basically what you think is going to happen). A theory is an explanation for what has been shown many times. (what happened with evidence)
Explanation:
What is the final velocity of a dragster that travels 400 meters from the start line
to the finish line in 5 seconds? *
Answer:
80m/s
Explanation:
The formula for velocity is [ v = s/t ] where s = displacement and t = time.
= 400/5
= 80m/s
Best of Luck!
100 points 100 points! Answer correctly please I need a good grade!!!!! Brainiest for correct answer!
Answer:
2.2
Explanation:
It then pauses before flying with an average velocity of 6.8 m/s east for 3.5 s to another branch.
Answer:
9 m/s
Explanation:
The seagull flew at a constant velocity for a total of 32 seconds.
One-quarter of 32 is:
[tex]\implies \dfrac{1}{4} \times 32=\dfrac{32}{4}=8\; \sf seconds[/tex]
Therefore, if the seagull flew 72 meters in one-quarter of 32 seconds, it flew 72 meters in 8 seconds.
[tex]\boxed{\sf Speed=\dfrac{Distance}{Time}}[/tex]
To find the velocity (speed) of the seagull, substitute the distance and time into the formula:
[tex]\implies \sf Velocity=\dfrac{72}{8}=9\; \sf m/s[/tex]
What is the speed of a walking person in m/s if the person travels 2000 m in 35 minutes?
Answer:
speed = distance / time taken
=2000/35
=57.14 m/s
Explanation:
this is the answer plz add it as brainliest
Answer:
0.952 m/s
Explanation:
help me please i dont understand
difference between uniform velocity and variable velocity
Explanation:
when a body covers equal distance in equal interval of timein a specific direction it is said to have uniform velocity . when a body covers unequal distance in equal interval of time in a specified direction , it is said to have variable velocity .The temperature of the universe is gradually ____ (The answer is not a number)
Answer:
its decressing, or getting colder
Explanation:
hope this helps
branilest plzz
Which of the following is true about galaxies?
a. Galaxies are moving away from each other.
b. Galaxies are moving toward each other.
c. Galaxies move in a random pattern.
d. Galaxies are stationary.
Answer:
Galaxies move in a random pattern.
Answer:
a
Explanation:
the universe is expanding
i remember learing this
hope this helps
brailest plzz
what is the speed of a cat which travels 3600m in one hour?
1)0. 2)3600m/hr. 3)1m/s
Answer:
3600m/hr is the speed of the cat
1) How many valence electrons are in the alkaline earth metal family? Do
they form cations or anions?
A)
1 valence electron, cations
B)
1 valence electron, anions
C)
2 valence electrons, cations
D)
2 valence electrons, anions
Answer:
Below
Explanation:
Alkaline earth metals have 2 valence electrons, which means that when they react with other elements, they will lose rather than gain their 2 electrons making them positive ions or cations.
So the correct answer to your question would be....
C) 2 valence electrons, cations
Hope this helps! Best of luck <3
convert 300 k into Celsius scale
Answer:
Given, kelvin temperature = 300 K
C = K – 273.15
C = 300 – 273.15
C = 26.85
Therefore, 300 Kelvin is equal to a celsius temperature of 26.85 °C
Hope this helps u
Peter drives 150 meters in 18
seconds. Assuming he does not speed
up or slow down, calculate his speed.
[tex] \large \mathfrak{Solution : }[/tex]
Distance = 150 meters
Time = 18 seconds
Speed :
[tex] \dfrac{distance}{time} [/tex][tex] \dfrac{150}{18} [/tex][tex] \dfrac{25}{3} [/tex][tex]8.33 \: \: m/s[/tex]a plane is traveling at 250 m/s north after being in the air for 1 hour, what is the displacement?
Answer:
900,000 meters of displacement.
Explanation:
250x60x60 because it is meters per second and needs to be converted to a full hour.
How far will Julie travel if she moves at a speed of 7 meters per second for 20 minutes?
1. State Newton's third law of motion and write any three applications of it
Answer:
1)When a bullet is fired from the gun with a certain force (action) as a reaction an equal and opposite force is exerted on the gun. 2)when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
Newton's Third law: when object A exerts force on object B, object B simultaneously exert oppositely directed force of equal magnitude on object A.
1)When a bullet is fired from the gun with a certain force (action) as a reaction an equal and opposite force is exerted on the gun.
2)when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
you run from your house to a friend's house that 3 miles away. you then walk home. A. What distance did you travel? B. What was the displacement for the entire trip?
A car is running at a constant speed of 25m/s when the driver sees a child's sped of 20m a head he applied a break a car is top in 50 minutes calculate the time to stop the car and accelaration
Answer:
Umm..... Sorry can't understand your question, too many grammar mistakez
Determine the units of the quantity described by each of the following combinations of units:
a. kg (m/s) (1/s)
b. (kg/s) (m/s^2)
c. (kg/s) (m/s)^2
d. (kg/s) (m/s)
WE have that the unit of the quantities are described
a.kg (m/s) (1/s)=Newton
b. (kg/s) (m/s^2)=None
c. (kg/s) (m/s)^2= Power in Watt
d. (kg/s) (m/s)=Newton
From the question we are give the units
a.kg (m/s) (1/s)
b. (kg/s) (m/s^2)
c. (kg/s) (m/s)^2
d. (kg/s) (m/s)
a)
Generally
kg (m/s) (1/s) is Represented as Newton
Where Newton is the unit Force and Weight
b)
Generally
(kg/s) (m/s^2) is the unit representation of No function
Therefore
None
c)
Generally
(kg/s) (m/s)^2 is the unit representation of Power in Watt
Therefore
Watt
d)
Generally
(kg/s) (m/s) is the unit representation of Newton
Where Newton is the unit Force and Weight
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https://brainly.com/question/11800127
15-3y=8
Solve for Y
Round to TWO decimal points
Answer: y = 2.33
Explanation:
Given expression
15 - 3y = 8
Subtract 15 on both sides
15 - 3y - 15 = 8 - 15
-3y = -7
Divide -3 on both sides
-3y / -3 = -7 / -3
[tex]\boxed{y=2.33}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
What is F = m x a in Newton's laws of motion?
Answer:
This is Newton's second law.
Newton's second law text:
(If a resultant force acts on a body, then an acceleration will give it an acceleration, the magnitude of which is directly proportional to the amount of the net force, and a direction is in the direction of the net force itself)
F=ma
net force = mass x acceleration
I hope I helped you^_^
A stone falls from the top of a building and hits the ground at a speed of 32 m/s.
The air resistance force on the stone
is very small and may be neglected.
Calculate the time of fall.
Answer:
Explanation:
first you would need the height of the building in meters then using the formula calculate 32 m/s ÷ the height of the building in meters and you will get your answer
A 4500-kg helicopter accelerates upward at 2.0 m/s^2. What lift force is exerted by the air on the propellers?
Using newtons second law .
[tex]\\ \sf\longmapsto Force=ma[/tex]
[tex]\\ \sf\longmapsto Force=4500(2)[/tex]
[tex]\\ \sf\longmapsto Force=9000N[/tex]
a solid copper sphere will sink in water while a hollow copper sphere of the same mass may float.explain this observation
Answer:
According to archemdes principle ,if an object displace more water that its volume then it will sink in water
As The hollow sphere of same mass have high volume ,so it will float and solid copper with less volume will sink ....
Explanation:
Plz mark me as brainliest ,I badly need it
A car starts from rest and accelerates at 5 m/s/s.
a) what is the position of the car after 4 seconds?
b) what is the speed of the car after 4 seconds?
c) how long will it take the car to travel 100 meters?
d) how long will it take the car to reach 30 m/s?
Please find attached photograph for your answer. Hope it helps. Please do comment
Hola cómo están todos
what is practical machine?
Explanation:
A practical machine is a simple machine that losses energy and have parts that have weights, friction and it causes some loss of work done.
A cabbie is trying to stop when he notices a fare is whistling them over. The
car has 18750 J of energy. If the cab is 2100. kg, how fast was it moving?
[tex]\boxed{\sf K.E=\dfrac{1}{2}mv^2}[/tex]
[tex]\\ \sf\longmapsto 18750=\dfrac{1}{2}2100v^2[/tex]
[tex]\\ \sf\longmapsto 18750=1050v^2[/tex]
[tex]\\ \sf\longmapsto v^2=\dfrac{18750}{1050}[/tex]
[tex]\\ \sf\longmapsto v^2=17.85m^2[/tex]
[tex]\\ \sf\longmapsto v=\sqrt{17.85}[/tex]
[tex]\\ \sf\longmapsto v=4.1m/s[/tex]
When dropped from rest, any object will fall a total distance of 19.6 m in the first 2 seconds of its fall. How far
does the object fall just during the 2nd second (i.e., from time t= 1 s to t = 2 s)?
Answer: The acceleration due to gravity increases the velocity of a falling object by 9.8 m/s per
second. Answer B is wrong because velocity increases. Answer C is wrong because the
distance increases every second. Ans. E is wrong because the derivative of distance with
respect to time gives the velocity, not the acceleration.
Explanation:
