Answer:
Explanation:
If a force of 20N is situated at 30° south west, the x and y component of the vector will be expressed as:
Fx = -Fcos 30° and Fy = -Fsin30°
They are but negative because the force acts in the third quadrant of a four cardinal point
Fx = -20cos30°
Fx = -20(√3/2)
Fx = -10√3N
Hence the -x component if the force is -10√3N
Fy = -20sin30°
Fy = -20(1/2)
Fy = -10N
Hence the y-component is the vector is -10N
I NEED HELP ON NUMBER 12 please!!! I’ll put u as Brainllest
Answer:
12.
m=pf/40
Explanation:
it's m=pf/40 because thats what i got
What is the general shape of the graph line?
A positively sloping diagonal
A negatively sloping diagonal
A half-parabola
A hyperbola
Answer:
A
Explanation:
Positive slope lines have a left to right ascent. A negative slope is present on lines that descend from left to right. Consequently, a diagonal line with a positive slope (/) would be to the right. Thus, option A is correct.
What is positively sloping diagonal?The height difference between two tile corners that is on the diagonal. A hidden value is used to determine if a tile can be seeded on, passed by a cart, or have the corner of the pavement tile lowered.
When two variables have a positive slope, it means that they are positively correlated; that is, when x rises, y rises as well, and when x falls, y falls as well.
A line on a line graph that has a positive slope rises as the line advances from left to right.
Be aware that a line's positive slope causes it to slope upward from left to right. Remember that a line with a negative slope descends from left to right. Keep in mind that a line has no slope when it is horizontal.
Therefore, positively sloping diagonal general shape of the graph line.
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Name the two measurements that are represented on the ruler to the right?
If your body is wet what is the lowest electrical voltage can be fatal?
Answer:
The lowest electrical voltage would be 100 volts.
Answer:
15 volts would be fatal
A penny is dropped from the top of a 180m building. How much time will it take to fall to the ground?
Answer:
9.9 seconds
Explanation:
hope this helps :)
Which part of the diagram represents the proton? A) A B) B C) C D) D
Answer:
c
did it on usa test prep
What is not a reason to use models in science
Answer:
they may not be accurate - climate models are hugely complex in terms of numbers of factors involved in atmospheric systems, accuracy is lost in the process of oversimplification.
they rely on the expertise of the people making them.
different people may interpret them in different ways.
hope it helps u..........
Newton's second law of motion describes inertia.
True
False
Answer:
yep it is false the definition says nothing about inertia
Explanation:
Q3. At an altitude of 6679 km above the center of the Earth, the
International Space Station can complete one orbit in 1.5 hours.
Determine the average speed of the ISS. Explain why you should
calculate speed in this case, and not velocity.
Answer:
5524.8 m/s
Explanation:
Given that,
Altitude above the surface of earth is 6679 km, the Space Station can complete one orbit in 1.5 hours. We need to find the average speed of the ISS. The average speed of its orbit is given by :
[tex]v=\sqrt{\dfrac{GM}{R}}[/tex]
R is distance from Earth
R = r + d, r is the radius of Earth
R = 6371 + 6679
R = 13050 km
So,
[tex]v=\sqrt{\dfrac{6.67\times 10^{-11}\times 5.972 \times 10^{24}}{13050\times 10^3}}\\\\v=5524.8\ m/s[/tex]
or
Hence, the average speed of ISS is 5524.8 m/s.
From what process energy is liberated in the sun?explain it in brief.
Answer:The sun produces energy through nuclear fusion.
Explanation:
The sun produces energy through nuclear fusion. The sun is a large ball of hydrogen and helium undergoing constant nuclear fusion, in which atoms of hydrogen combine to form helium and release a large quantity of energy. The enormous pressure in the sun keeps the fusion running for huge amounts of time.
How fast must a person’s average velocity be in meters per second to travel 4.5 km in 30 minutes?
Answer:
0.833m/s
Explanation:
1hr=60min
=30min
{1×30)÷60=1/2
4.5/1.5=3km/hr
3×5/18=5/6or0.833m/s
A penny is dropped from the top of a building 290 m high. Ignoring air resistance, if
the penny falls straight down, with what speed would it hit the ground?
Answer:
Vf = 75.4 m/s
Explanation:
In order to find the final velocity of the penny when it would hit the ground, we will use the equation of motion. In this particular case the third equation of motion can be used. The third equation of motion is written as follows:
2gh = Vf² - Vi²
where,
Vf = Final Velocity of the penny when it would hit the ground = ?
Vi = Initial Velocity of the penny = 0 m/s (Since, the penny starts from rest)
g = acceleration due to gravity = 9.8 m/s²
h = height of building = 290 m
Therefore,
2(9.8 m/s²)(290 m) = Vf² - (0 m/s)²
Vf = √(5684 m²/s²)
Vf = 75.4 m/s
what do you mean by force
Answer:
a force is a movement on a object such as kinetic energy
In the equation E = mc2, E stands for
Answer: energy=mc^2 is the answer
Answer:
E represents units of energy
Explanation:
The diagram shows two sets of vectors that result in a single vector. Four vectors added using the tip to tail method. The first vector is labeled 100 meters and drawn east, the second vector is labeled 250 meters and drawn north, the third vector is labeled 200 meters and drawn east, the fourth vector is labeled 50 meters and drawn north. A last vector, the resultant, is drawn as a dashed arrow from the tail of the first to the tip of the last. What are the first two steps for finding the magnitude of the resultant vector?
1- find the square of the first horizontal vector and the square root of the first vertical vector
2- find the square root of the first horizontal vector and the square root of the second horizontal vector
3- find the sum of the two horizontal vectors and the sum of the two vertical vectors
4- find the difference between the two horizontal vectors and the difference between the two vertical vectors
Answer:
find the sum of the two horizontal vectors and the sum of the two vertical vectors
Explanation:
made the most sense. you can beat me up if its wrong :D
Answer:
find the sum of the two horizontal vectors and the sum of the two vertical vectors
Explanation:
edge 2021
the comment question the answer is "sum"
which scenario would be classified as a conceptual model
The scenario that would be classified as a conceptual model is A student thinks of bouncing balls as representing gas molecules.
What is a Conceptual Model?
A system is portrayed in a conceptual model. It consists of ideas that aid in knowing, comprehending, or simulating the subject the model portrays.
A variety must be stable for it to be a true explanation. When sugar is completely dissolved in water, it can stand without the sugar dissolving again for an unlimited period of time. In addition, the sugar will stay in the water if the sugar-water solution is filtered.
This is due to how tiny the liquefied particles are in a solution—they typically have a diameter of less than 1 nm. Depending on the type of nature that has been dissolved, solute particles might be particles, ions, or molecules.
Hence, option A is a scenario of a conceptual model
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Which scenario would be classified as a conceptual model?
A. A student thinks of bouncing balls as representing gas molecules.
B. Marshmallows and toothpicks are used to show the composition
of a water molecule.
C. A map and a map scale are used to represent a larger area of land.
D. A weather map shows different temperatures over most of the
United States.
A -0.06 charge that moves downward is in a uniform electric field with a strengthened of 200 N/C. What is the magnitude and direction of the force on the charge
Answer:
The magnitude of the force is 12 N Upwards
Explanation:
The force on a positive charge will be in the same direction as the field, but the force on a negative charge will be in the opposite direction to the field. Thus the direction of the force is upward.
Given;
magnitude of charge, q = 0.06 C
magnitude of electric field, E = 200 N/C
The magnitude of the force is given by;
F = qE
F = 0.06 x 200 N/C
F = 12 N Upwards
Therefore, the magnitude of the force is 12 N Upwards
Answer:
A. 12N up
Explanation:
According to the dude above me
What is its average acceleration in this time
interval?
Answer:
Unlike acceleration, the average acceleration is calculated for a given interval. Here, Δ v is the change in velocity and Δ t is the total time over which the velocity is changing. If the velocity of a marble increases from 0 to 60 cm/s in 3 seconds, its average acceleration would be 20 .
Travels 10m north followed by 24m East. What is the distance the student travelled in meters
Answer:
34
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she
wjehgebqk
whwh
Answer:
34
Explanation:
24+10=34
In a lab, the mass of object A is 2.5 kg. Object A weighs:
Answer:
25N
Explanation:
Assuming the lab is on earth:
w = mg = 2.5 (9.81) = 25N
what is the density of alcohol?
Answer:
789 kg/m³
Explanation:
Explanation:
The density of alcohol is 800 Kg/m^3 .
why it is important to learn the metric system and what implications could occur if we do not take into consideration the metric system when trading commodities with other countries
Answer:
to help us to be able to trade freely
Please help this is due in an hour!!!!!
Answer:
1. Collision- the sudden, forceful coming together in direct contact of two bodies
2. Newton's third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction.
3. Momentum is the product of a moving object's mass and velocity. When two objects collide the total momentum before the collision is equal to the total momentum after the collision
Question 2 (1 point)
An airplane travels east with a velocity of 100 m/s, but experiences a headwind that
is blowing west with a velocity of 15 m/s. What is the resultant velocity vector of
the airplane?
85 m/s East
2.
115 m/s East
115 m/s West
5
100 m/s East
Question 3 (1 point)
Saved
Answer:
I think it could be 85 m/s East but go for what you thought of because im not exactly sure.
Explanation:
PLSS HELP ILL MARK YOU BRAINLIEST !! PLS ANSWER BOTH!
How can the motion of an object that is already moving change?
How can the motion of an object thatnis NOT moving change?
Answer:
"They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object"
"When a force acts on an object that is stationary or not moving, the force will cause the object to move, provided there are no other forces preventing that movement."
The answer to both questions is the same answer:
That can only happen if force acts on the object.
22. Which unit of measure never is used in the International System of
Units?
inches
milliliters
grams
centimeters
Answer:
Inches
Explanation:
An inch is a unit of measurement in the Imperial system of measurement. Everything else is used in the International System of Units.
The unit of measure never is used in the International System of Units is inches. The correct option is A.
What is International System of Units?The International System of Units, abbreviated SI in all languages and sometimes pleonastically as the SI system, is the modern version of the metric system and the world's most widely used measurement system.
The International System of Units (SI), also known as the French Système International d'Unités, is a decimal international system of weights and measures derived from and expanding on the metric system of units.
The 11th General Conference on Weights and Measures adopted it in 1960, and it is abbreviated SI in all languages.
The International System of Units (SI) is a measurement system based on seven basic units: the metre (length), kilogram (mass), second (time), ampere (electric current), kelvin (temperature), mole (quantity), and candela. These base units can be combined with one another.
Thus, the correct option is A.
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Got stuck on question 3 need help please
Read the claim about caffeine. Caffeine improves mental alertness and motor coordination. A university research study was conducted to examine how caffeine affects fine motor skills. Ten teen girls, ages 14 to 18, were given 200 mg of caffeine per day for 30 days. Thirty minutes after taking the caffeine, each subject took a timed fine motor skills test in which they fitted 20 small beads onto pegs. The graph compares each subject’s average results on the same test done 30 minutes before and after taking the caffeine. Which group would most benefit from the claim? people who sell coffee with caffeine people who sell decaffeinated tea diners that serve only drinks without caffeine manufacturers of caffeine-free bottled fruit juice
Answer:
A or People who sell coffee with caffeine
Explanation:
Edge 2021, Have a great day/night
Answer:
people who sell coffee with caffeine
Explanation: got it right
What would most likely happen as a result of the generator in a wind turbine breaking? The blades would not be turned. Less steam would be produced. Electricity would not be generated. Solar energy would not be absorbed.
Answer:
Im guessing that the correct answer would be C.) Electricity would not be generated.
Explanation:
Apologies if im wrong.
Electricity would not be generated if the generator in a wind turbine breaks and is denoted as option C.
What is a Wind turbine?
This is a device which converts the kinetic energy from the wind into electrical energy.
The generator provides the kinetic energy which when broken, electricity generation is hindered.
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which of the following actions should you take if you are sensitive to strobe lights?
Answer:
Strobe light, computer monitor, tv screen all these are responsible for epilepsy seizures if some one is sensitive towards these lights.
Explanation:
Around 3% of the people are very sensitive towards to the strobe lights. The strobe light explore to the epilepsy and seizure. Certain of the visual seizures trigger to the intensities towards to the seizures. This condition of a person is called photosensitive seizures. This condition is more common among the adolescent and children.
It becomes less frequent as the age going on. It can happen with the light of tv and computer images scrolling. The intense strobe light also responsible for the seizures. If a person facing such type of problem consult to the doctor immediately. Person should avoid extreme environmental light such video games, tv screen computer monitor, strobe light, social media etc.
