Answer:
[tex]v_x=34 m/s[/tex]
[tex]v_y=53.9\ m/s[/tex]
Explanation:
Horizontal Launch
When an object is thrown horizontally with a speed v from a height h, it describes a curved path ruled by gravity until it eventually hits the ground.
The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:
vx=v
The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:
[tex]v_y=g.t[/tex]
The horizontal component of the velocity is always the same:
[tex]v_x=34 m/s[/tex]
The vertical component at t=5.5 s is:
[tex]v_y=9.8*5.5=53.9[/tex]
[tex]v_y=53.9\ m/s[/tex]
Need help quick!!!!
When trying make an object accelerate, what kind of Net force is required?
A. Balanced Force
B. Unbalanced Force
C. Force of Friction
D. Normal Force
Which of the following is an example of a dry lubricant? oil grease graphite petroleum
ANSWER ASAP WILL GIVE BRAINLIEST!
Answer:
Dry lubricants or solid lubricants are materials that, despite being in the solid phase, are able to reduce friction between two surfaces sliding against each other without the need for a liquid oil medium.
Explanation:
Answer:
Your answer is graphite :) Have a nice day
Explanation:
"Consiousness is everything. It is the learning instrument that takes effort. The benefits are extreme. When you change your consciousness you change your world, and when you change your world, you change the world. It's as simple as that and it's profound." What does this mean in 1 paragraph?
"Consciousness is everything. Consciousness and "conscious" are catch-all terms that refer to a wide range of mental events. Both have a variety of connotations, and the word "conscious" is used to describe both specific mental states and processes (state consciousness) as well as entire creatures (creature consciousness).
Your distinctive awareness of your own thoughts, memories, emotions, sensations, and surrounds is what is known as consciousness. Being aware of oneself and one's surroundings is the essence of consciousness.
This awareness is personal to you and subjective. It is a sign that something is a part of your consciousness if you can verbalize what you are experiencing.
To learn more about consciousness refer the link:
https://brainly.com/question/1657612
#SPJ9
All stars are born with the same basic composition, yet stars can look quite different from one another. Which two factors primarily determine the characteristics of a star?.
Answer:
Mass and Its stage of life
Explanation:
All stars are born with the same basic composition, yet stars can look quite different from one another. Its mass and its stage of life.
Kiana is wearing a black shirt and shiny necklace. While she is outside at recess her shirt absorbs the light waves and gets very hot in the sun, but her necklace reflects the light waves and small circles of light are seen around the yard. What explains why the light waves behaved differently on her shirt than they did on her necklace?
Answer:
Black bodies are good absorber of light waves from the sun, while shining surfaces are good reflector of the light waves.
Explanation:
Generally, a black surface or material tends to absorb light waves while under the sun, while a shiny surface is a good reflector of the waves. This is because the black material is a good absorber, and also a good emitter.
The shiny necklace can only absorb little light waves from the sun, thus it reflects most of the light waves. The reflection is the reason for the small circles of light seen around the yard.
However, when in a cool environment the black shirt would cools faster (good emitter) than the shiny necklace.
GIVING BRAINLIEST
In addition to having a blue color, what other characteristic do Neptune and Uranus share?
no rings
27 moons
no axis tilt
cold temperatures
Answer:
Cold temps. . .
Explanation:
Hope it helps!
a vertical spring oscillates with a frequency of 3.0 hz when a 0.60 kg mass is hung from it. determine the frequency when only a 0.38 kg mass hangs from it.
By angular speed, the frequency is 2.39 Hz.
We need to know about the angular speed of harmonic oscillation. the angular speed can be determined as
ω² = k / m
where ω is angular speed, k is spring constant, and m is the mass.
The angular speed can be calculated by
ω = 2πf
Hence,
ω² = k / m
(2πf)² = k / m
k = (2πf)² / m
where f is frequency.
From the question above, we know that:
m1 = 0.6 kg
f1 = 3 Hz
m2 = 0.38 kg
The spring is same, hence the spring constant is the same
k1 = k2
(2πf1)² / m1 = (2πf2)² / m2
f1² / m1 = f2² / m2
3² / 0.6 = f2² / 0.38
f2² = 5.7
f2 = 2.39 Hz
Find more on angular speed at: https://brainly.com/question/6860269
#SPJ4
Which two factors affect the amount of thermal energy an object has?
What is the weight of a person who has a mass of 60 kg
Answer:
Depends on the grativy of the planet. On Earth is 600 Newtons
Explanation:
W = M . G
W = 60 . 10
W = 600
A) a 70 kg runner begins his slide into third base moving at a speed of 4 m/s. How much work does friction do to slow him down as he slides into third base?
B) If the runner slides for 2 m, what is the force of friction between the player and the ground?
Answer: I don’t know the answer to this but just do what i do look up the question I’m sure someone has answered this hope it helps❤️
Explanation:
Solenoid A has length L and N turns, solenoid B has length 2 L and N turns, and solenoid C has length L / 2 and 2 N turns. If each solenoid carries the same current, rank the magnitudes of the magnetic fields in the centers of the solenoids from largest to smallest.
Rank of the magnitude of the magnetic fields in the centers of the solenoid from largest to smallest is,
[tex]B_{C}\; > B_{A}\; > B_{B}[/tex]
We know that, Magnetic field is directly proportional to Turns (N) and inversely proportional to Length (L) of the solenoid.
[tex]B \propto\frac{N}{L}\;\;\;\;\;------ equation(1)[/tex]
For Solenoid A,
[tex]Length\;(L) = L[/tex]
[tex]Turns\;(N)=N[/tex]
Substitute the value of turns and length in equation(1),
[tex]B_{A} =\frac{N}{L}[/tex]
For Solenoid B,
[tex]Length\;(L) = 2\;L[/tex]
[tex]Turns\;(N)=N[/tex]
Substitute the value of turns and length in equation(1),
[tex]B_{B} =\frac{N}{2L}[/tex]
[tex]B_{A} =\frac{1}{2}\;\frac{N}{L}[/tex]
For Solenoid C,
[tex]Length\;(L) = \frac{L}{2}[/tex]
[tex]Turns\;(N)=2N[/tex]
Substitute the value of turns and length in equation(1),
[tex]B_{C} =\frac{2N}{\frac{L}{2} }[/tex]
[tex]B_{C} =\frac{4N}{L}[/tex]
Describe the magnetic field?The magnetic influence on moving electric charges, electric currents and magnetic materials is described by a magnetic field, which is a vector field. A force perpendicular to the charge's own velocity and the magnetic field acts on it when the charge is travelling through a magnetic field. The magnetic field of a permanent magnet pulls on ferromagnetic substances like iron and attracts or repels other magnets. A magnetic field that varies with location will also exert a force on a variety of non-magnetic materials by changing the velocity of those particles' outer electrons.
To learn more about magnetic field, visit:
https://brainly.com/question/14848188
#SPJ4
"El sujeto es emergente de la compleja trama de relaciones vinculares e institucionales que lo determinan. En esa trama, las relaciones tempranas adquieren un lugar fundamental en los procesos de constitución subjetiva" Terigi, Flavia (2010) Sujetos de la Educación. Para el psicoanálisis, ¿cuáles serían esas relaciones tempranas y por qué se afirma que son fundamentales en los procesos de constitución subjetiva?
La respuesta correcta para esta pregunta abierta es la siguiente.
Para el psicoanálisis, las relaciones tempranas son las relaciones a posteriori entre los padres del recién nacido y el bebé mismo. Estas relaciones son fundamentales en los procesos de constitución subjetiva para el discurso parental para entender los aspectos del desarrollo infantil y sus diferentes estados o teorías de desarrollo para ir comprendiendo cada aspecto de la interrelación y el comportamiento entre las partes.
Para el psicoanálisis, el recién nacido está llegando a un núcleo familiar que ya está establecido y se basa en conocimientos, tradiciones y experiencias de los padres que han recibido de generaciones anteriores, y éstas van a influir directamente en la interrelación permanente con los primeros años del crecimiento del bebé.
A car starts from rest and accelerates at 4 m/s2 until it reaches 36 m/s. How far did it travel in this time?
The distance of a car that starts from rest and accelerates at 4 m/s² until it reaches 36 m/s is 162m.
How to calculate distance?The distance moved by a body can be calculated using the following formula:
S = ut + ½at²
Where;
S = distanceu = initial velocityt = timea = accelerationHowever, the time taken for the car to complete the acceleration can be calculated as follows:
4 = 36/t
t = 9seconds
S = 0 × t + ½ × 4 × 9²
S = 0 + 162
S = 162m
Therefore, the distance of a car that starts from rest and accelerates at 4 m/s² until it reaches 36 m/s is 162m.
Learn more about distance at: https://brainly.com/question/15256256
#SPJ1
A machine does 500 j of work in 20 sec. What is the power of this machine?
Explanation:
P=W/t
P=500/20
P=25 W
Plz answer all 5 of the questions i will give brainlyest
1.What is force?
2.Relate force and motion.
3.What forces control the motion of everyday objects?
4.Identify and define the SI unit for force.
5.Draw a diagram to represent a foot kicking a resting soccer ball. Use arrows to represent the force applied to the ball and to show how the ball moves after it is kicked.
Answer:
1)force:- force is an external affert by any body on an object.
2) force and motion are related to each other. force helps to create motion in any object.
3) frictional force
4) Newton
Calculate the force between two objects that have masses of 70 kilograms and 2,000 Kilograms separated by a distance of 1m
Answer:
The gravitational force between two objects = F = 9.3 x 10⁻⁶ N
Explanation:
Given
m₁ = 70 kg
m₂ = 2000 kg
distance r = 1 m
Thus, the gravitational force between two objects = F = Gm₁m₂ / r²
as
Gravitation constant = G = 6.67430×10⁻¹¹ N⋅m²/kg²
Thus, putting the values
F = Gm₁m₂ / r²
= (6.67430×10⁻¹¹ × 70 × 2000) / 1²
= 9.3 x 10⁻⁶ N
Thus, the gravitational force between two objects = F = 9.3 x 10⁻⁶ N
The boat moves forward due to A. a forward thrust from the propeller that is greater than the backward force of the water current. B. a forward thrust from the propeller that is equal to the backward force of the water current. C. a backward thrust from the propeller against the water that is greater than the force of gravity. D. a backward thrust from the propeller against the water that is less than the force of gravity.
Answer:
(B). a forward thrust from the propeller that is equal to the backward force of the water current.
Explanation:
A boat generates thrust when the propellers are turned to accelerate water forward. According to Newton's third law, the resulting thrust pushes the boat in the opposite direction (i.e. backward direction) which is equal in magnitude.
So, the boat moves forward due to a forward thrust from the propeller that is equal to the backward force of the water current.
Hence. option (B) is correct.
the magnitudes of 2 vectors a and b are 12 units and 8 units respectively. what are the largest and smallest possible values for the magnitude of the resultant vector r
When vector A is oriented in the same direction as vector B, the resultant's greatest magnitude is A + B = 12 + 8 = 20 units. When vector A is oriented in the direction opposite to vector B, the resultant vector has its least magnitude, A - B = 12 - 8 = 4 units.
What is a resultant vector?A vector that produces the aggregate impact of all other vectors is known as a resultant vector. The resultant vector is what we get when we combine two or more vectors. The head-to-tail convention, which is defined as "joining the tail of the first vector with the head of the second vector to give another vector whose head is joined with the head of the second vector and tail of the first vector," can be used to geometrically add vectors by drawing them on a common scale.
Any number of vectors can be added by extending the procedures for obtaining a vector's resultant or adding more than two vectors.
R=A+B+C---
Assume there are three vectors: A, B, and C. These vectors must be drawn in accordance with the head-to-tail rule so that the heads of each vector line up. As a result, the resultant vector is as follows:
R=A+B+C
To know more about resultant vector, visit:
https://brainly.com/question/13322477
#SPJ4
A uniformly charged, straight filament 7.00m in length has a total positive charge of 2.00μC. An uncharged card-board cylinder 2.00cm in length and 10.0cm in radius surrounds the filament at its center, with the filament as the axis of the cylinder. Using reasonable approximations, find (a) the electric field at the surface of the cylinder
The electric field at the surface of the cylinder is 51428V/m
Given data:
• The length of the charge is l= 7m.
• The charge is q = 2μC..
• The radius the cylinder is r = 10 cm
Since the filament length is so large as compared to the cylinder length that the infinite line of charge can be assumed.
The expression to calculate the electric field is given as,
E=2kλ/r
Here, λ is the linear charge density.
Substitute the values in the above equation,
E = (2×9×109N⋅m^2/C^2×2×10^−6C)/0.1m×7m
E = 51428N/C×(V/m)/(N/C)
=51428V/m
An electric charge is the property of matter where it has more or fewer electrons than protons in its atoms. Electrons carry a negative charge and protons carry a positive charge. Matter is positively charged if it contains more protons than electrons, and negatively charged if it contains more electrons than protons.
Learn more about charge here:
https://brainly.com/question/19886264
#SPJ4
Using the "Rube Goldberg" machine image below, identify the correct simple machine used in this complex machine.
Answer:
c is the correct answer
Explanation:
A Rube Goldberg Machine is “a comically involved, complicated invention, laboriously contrived to preform a simple operation.” 2. What are the 6 Simple Machines? A. The 6 Simple Machines are: wedge, screw, lever, wheel and axel, inclined plane and pulley
Answer: it’s actually A
Explanation:
Anything sharp like a knife, is a wedge so the hook thingy is a wedge
Which of the following do you NOT need a college education for?
personal trainer
physical therapist
nutritionist
teacher
The type of profession that does not need a college education is personal trainer.
Which profession does not need a college education?Personal trainer is the type of profession that does not need a college education because the personal trainer is not related to any educational subject. This profession can be learned from a trainer not from the teacher in the school or college. Personal trainer is responsible for maintaining the strengths and remove the weaknesses through creating workout plans. It provides physical and mental guidance and also monitor progress of their customer on a regular basis..
So we can conclude that the type of profession that does not need a college education is personal trainer.
Learn more about education here: https://brainly.com/question/25887038
#SPJ1
What is the SI unit for capacitance?
O farad (F)
O volt (V)
O joule (J)
O ampere (A)
The capacitance value of a capacitor is measured in farads (F)
The SI unit for capacitance is referred to as Farads.
What is Capacitance?This is the ability of a device or circuit to store energy which is usually in
the form of electric charges.
A capacitor on the other hand is the device which performs this function.
The formula for determining capacitance is denoted below:
C = q/V where C is capacitance, q is charges and V is voltage.
Read more about Capacitance here https://brainly.com/question/13578522
Heat transfers through Earth's systems in different ways. In which atmospheric action can we see evidence of conduction? Cold air pushes warm air upward, creating a current. Cold air pushes warm air upward, creating a current. The surface of the Earth heats the air that contacts it. The surface of the Earth heats the air that contacts it. Radiation from the Sun heats the surface of the Earth. Radiation from the Sun heats the surface of the Earth. Air increases in density and sinks back towards the Earth.
Answer:
B. The surface of the Earth heats the air that contacts it.
Explanation:
Conduction is a mode of heat transfer in which energy is transferred from a hot molecule to the neighboring molecules due to contact. Thus, heat energy is transferred from one molecule to another in the process.
Therefore, the air that comes in contact with the surface of the earth heats up by conduction. Since the surface of the earth is heated up due to the radiation from the Sun.
Answer: B.
Explanation: I took the test. Also, after my diagnostic I just wanted to see if my answers were correct lol.
What is the main difference between primary and secondary succession?
A The climax of primary succession is pine forest
B Primary succession begins with bare rocks
C Secondary succession begins with mossed and lichens
D Secondary succession include frequent fires
Answer:
b
Explanation:
Glands in the body send out chemical messages through hormones to control growth, development, and metabolism. The system that helps regulate the body to maintain homeostasis is the-
Answer:
The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems.
Explanation:
PLEASE HELP ME
Imagine a metal cooking pan with a wooden handle is placed into a 200 °c oven.
Which material (wood or metal) would reach thermal equilibrium most rapidly? Why?
Answer:
The pan because it is directly on there to absorb heat while the handle is there more towards the end and will have heat reaching the start of the handle while the metal is already hot
Proxima Centauri and the Sun are both main-sequence stars, but Proxima Centauri is a red dwarf and the Sun is a yellow dwarf. Based on the information you charted, compare the characteristics of red dwarf stars and yellow dwarf stars.
Answer:
Yellow dwarfs are small, main sequence stars. The Sun is a yellow dwarf. A red dwarf is a small, cool, very faint, main sequence star whose surface temperature is under about 4,000 K. Red dwarfs are the most common type of star. Proxima Centauri is a red dwarf.
Explanation:
Answer:
Red dwarfs are low-mass main-sequence stars. Yellow dwarfs are main-sequence (dwarf) stars with masses comparable to that of the Sun.
Explanation:
Lab report 1.04 hypothesis
Answer:a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Hope This helps!!
can any one give me a amazon code i will repay you. plz i am trying to buy my mom somin off amazon
Answer:i have none but good luck also this is a learning site ;-;
Explanation:
Why should you care
about air masses?
Explanation:
because
1.Extremely warm masses can lead to heat waves
2.Extremely cold air masses can be just as deadly and costly
3.The"clashing "of different air masses can produce regions of severe weather