Answer:
the way you speak with your entire body
Explanation:
Body language is the way you speak with your entire body. Therefore, the correct option is option D.
What is body language?Body language refers to a form of communications in which information is expressed or conveyed via bodily behaviors rather than words. Face expressions, body posture, movements, eye movement, touch, and use of space are examples of this type of behavior.
Although the phrase "body language" is typically used in reference to people, it can also be used in reference to animals. Kinesics, another name for the research of body language, is related. Although facial expression is a crucial component of communication, much of it occurs subconsciously. Body language is the way you speak with your entire body.
Therefore, the correct option is option D.
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11. What is the wavelength in nanometers of the most energetic violet light?
Answer:
410 nanometers
Violet light is electromagnetic radiation with wavelengths of 410 nanometers and red light has a wavelength of 680 nanometers. The nanometer is a unit of distance in the metric scale and is abbreviated as nm. One nanometer (nm) equals one thousand millionths of a meter (m) or 1 nm = 10-9 m.
Explanation:
Hope it helps! Correct me if I am wrong :>
Answer:
Using my searching skills, I have came to the conclusion that the most energetic violet light wavelength is 380nm.
if the reference point changes, the
_____ of position changes, but the actual position does not change
Answer:
description
Explanation:
Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.
This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.
Mathematically, the motion of an object is described in terms of acceleration, time, distance, speed, velocity, displacement, position, etc.
A reference point refers to a location or physical object from which the motion (movement) of another physical object or body can be determined.
For example, a point on a map is considered to be a reference point because it represents the starting point of an object or person in motion.
If the reference point changes, the description of position changes, but the actual position does not change.
Answer:
description
Explanation:
Hope this helps
Which of these is NOT a line on the tennis court?
Base line
Service line
Side line
Front line
Answer:
The answer would be Front Line
The base line, service line, and the side lines are the part of the tennis court however front line is not a part of the tennis court. Thus, the correct option is D.
What are the specifications of Tennis Court?
A tennis court is a 78ft long court, with a service line of 21ft from the net. The courts for singles tennis matches are 27ft wide in dimension, while the doubles matches courts are 36ft wide. The total playing area in tennis for a singles court is 2,106ft² and 2,808ft² for a doubles court.
The basic and important parts of a tennis court in both singles and doubles are the baseline, the center mark, the sidelines, the service lines, and the service boxes. The baseline is the boundary line at the ends of the tennis court, and the sidelines are the lines which mark the boundary line between in-bounds and out-of-bounds for both singles and doubles play.
Therefore, the correct option is D.
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A compound pulley is a type of system. How does a system work?
the magnetic flux density of a given conductor is 3.6T. Given that the conductor generates 12.9N and has a length of 10cm, calculate the current being carried
Answer:
i = 5.28 A
Explanation:
The magnetic force is given by the expression
F = i l x B
the bold letters indicate vectors, let's write the modulus of that expression, where the direction between the conductor and the magnetic field is 90º, therefore the sine 90 = 1
F = i l B
i = F / l B
let's reduce the length to the SI system
l = 10 cm (1m / 100 cm) = 0.10 m
let's calculate
i = 12.9 / 0.1 3.6
i = 5.28 A
What does it mean for two parameters to be inversely proportional?
that means the parameter over another
Explanation:
that is when you say a parameter is inversely proportional to another it means what ever happens to the first parameter the opposite happens to the other parameter
Acceleration is proportional to mass. T or F
Answer:
T....................
Please help/ show work !!! Also don’t answer by putting a link!!
The work done in lifting a brick of mass 2kg through a height of 5m above the ground will be
(A)2.5J
(B)10J
(C)50J
(D)100J
Answer:
D. 100 J
Explanation:
Given
Mass (m) = 2 kg
Height (h) = 5 m
Acceleration due to gravity (g) = 10 m/s²
Now
Work done(W)
= m * g * h
= 2 * 10 * 5
= 100 Joule
Hope it will help :)❤
The work done in uplifting a brick having a mass of 2kg along with a height of 5m above ground level would be:
D). 100 J
Given that,
Mass of the brick [tex]= 2Kg[/tex]
Height of the brick [tex]= 5m[/tex]
As we know,
Work Done (W) [tex]= mgh[/tex]
where
m = Mass
g = Acceleration due to gravity
h = height
A.T.Q.
By substituting the given values, we get;
[tex]Work Done (W)[/tex] [tex]= 2[/tex] × [tex]10[/tex] × [tex]5[/tex] (taking [tex]g = 10 m/s^2[/tex])
[tex]= 100 J[/tex]
Thus, the work done is 100 J and hence, option D is the correct answer.
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An air conditioner with a resistance of 50.0 Omega(R1) and a computer with a resistance of 20.0(R) are connected in parallel to a 120.0-V source through a 2.00-0 resistor (R3) series, as shown below. Find the current through the computer when the air conditioner is on and when is off
Answer:
the value of current will be 6A for the both case.
Explanation:
the voltage difference between two sides of the computer will be 120V .it will not depend on while the conditioner is on or off. so for the both case it will be same.
as we know current I=V/R
so for the both case I=120/20=6(ans)
A wave has a frequency of 1000 Hz. If the wavelength is 0.5 m, how fast is the wave
traveling?
Answer: 1000 Hz · 0,5 m = 500 m/s
Explanation: speed = frequency · wavelength
What is the difference between obtaining knowledge from a controlled experiment versus other forms of scientific investigation?
Answer:
Any scientific investigation in its simplest form involves collecting information, while a controlled experiment is a tightly controlled investigation that tests a hypothesis.
Explanation:
All the scientific investigations start with a particular question. The question decides what type of investigation should research take. A controlled experiment is an investigation which allows a particular variable to change and all other variable controlled to remain constant to see the effect on dependent variable to test a particular hypothesis while other types of investigations are used to increase the knowledge or information about the particular research subject.
Which is the wavelength of a wave that travels at a speed of 3.0 × 10^8 m/s and has a frequency of 1.5 × 10^16 Hz?
Answer:
2 x 10^-8
Explanation:
the formula of wavelength is
the speed divided by frequency
so you have the speed given = 3.0x10^8m/s
and frequency = 1.5×10^16 Hz
so wavelength = 3.0x10^8m/s / 1.5x10^16 Hz
What is the equivalent resistance between terminals A and B, measured in ohms?
Answer:
c. 0.80
Explanation:
they will choose the path that has not resistance
How is mechanical weathering affected by climate
Explanation:
In general, hot wet climates accelerate chemical weathering while cold dry climates accelerate physical weathering. Although the rate of weathering depends on the type of rock, rocks in tropical climates experience the highest rates of weathering because of the combination of high heat and heavy rainfall.
What is the definition of light of one year ?
Answer:
The definition of a light year is the distance a photon will travel in a year in a vaccume, like space.
PLEASE HELP I AM GIVINF 99 POINTS PLEASE
Answer:
B
Explanation:
Answer:
B
Explanation:
3. Given a force of 44 N and an acceleration of 4 m/s?, what is the mass?
Answer:
m=F/a
= 44/4
= 11 m
Explanation:
Just use the formula F=ma
What happens when you throw a basketball up toward the hoop? If you are lucky, the ball sinks into the net. You score two points before the ball drops down to the ground. The basketball isn’t heavy. Why doesn’t it stay up in the air when you throw it? Have you ever heard the saying, What goes up must come down? This saying helps explain what happens to the basketball. It is being acted on by an invisible force called gravity. Gravity is the force in the universe that attracts all objects to each other.
Gravity has existed since the beginning of the universe. It holds everything in the universe in place. We know it is always there. It is hard to understand how it works. First, you need to understand that there is gravitational attraction between all objects. There is gravitational attraction between you and Earth, between Earth and the Moon, and between Earth and the Sun. You cant feel the gravitational attraction between you and Earth. However, it is what keeps your feet planted firmly on the ground. Imagine spinning around and around on a merry-go-round. As long as you hold on, you will stay on the merry-go-round. Don’t let go! You will fly off and land on the ground. This analogy helps us visualize the gravitational attraction between Earth and you. Earth is spinning on its axis. Gravity keeps you on Earth rather than flying out into space.
Now think about the gravitational attraction between Earth and the Moon. The same force that keeps you on Earth pulls the Moon and Earth together. This attraction keeps the Moon in orbit around Earth. Also think about the affect of the Moons gravitational force on Earths oceans. The gravitational pull of the Moon makes the ocean tides rise and fall.
There is attraction between you and Earth and between the Moon and Earth. The Sun also has a gravitational pull on Earth. This attraction makes the Earth orbit the Sun. The Suns attraction is very strong. All objects in the solar system orbit around this medium-sized star. What would happen if the Suns gravitational attraction suddenly disappeared? All the planets, including Earth, would fly off into space just like you would if you let go of the merry-go-round.
There is gravitational attraction between all objects. Why is the effect stronger in some cases? For example, Earths gravity has a more powerful effect on you than the Suns gravity. How could this be possible? After all, the Suns gravitational attraction holds all of the objects in the solar system. The force of gravity between two objects actually depends on two things. It depends on the mass of the two objects. It also depends on the distances between them. The greater the mass of the objects, the greater the gravitational force between them. In other words, the bigger an object is, the more gravity it has. Distance also has a large effect. The closer objects are to each other, the stronger their gravitational force of attraction. As they get farther apart, the force between them gets weaker. The Sun is much more massive than Earth, but the distance between you and Earth is less. The gravitational pull of the Sun has little effect on you because the distance is so large.
Gravity is the invisible force that attracts all objects, no matter their size or mass. The Sun has the strongest gravitational force of any object in the solar system. It attracts all astronomical objects into orbit around itself. Without this force, everything would fly off into the universe.
Which of the following summaries expresses the main points of the passage best?
Group of answer choices
I believe gravity is the most important aspect of our universe. Without it we would all be floating off into the universe. There wouldn’t be any orbits; instead, all planetary bodies would simply float around, running into each other when they crossed paths and just wandering forever.
There is a gravitational force between all objects in the universe. Gravitational force is what keeps all components of our solar system in orbit around the Sun, as well as moons in orbit around planets. The force of gravity affects Earth's tides and holds us on Earth's surface. The force of gravity between objects depends on their masses and the distance between them.
Gravity is hard to understand and scientists have little to no understanding of how it works. We know that gravity is out there, but the specifics are often lost on us. Plants, animals, and humans are all able to grow tall due to the pull on Earth from the Sun. Without the Sun we would all just stretch out along Earth's surface.
None of the above
Answer:
What happens when you throw a basketball up
toward the hoop? If you are lucky, the ball sinks
into the net, scoring two points before dropping
back down to the ground. The basketball isn’t
that heavy, so why doesn’t it stay up in the air
when you throw it? Have you ever heard thesaying, “What comes up must come down”?
This saying is a simple explanation for what
causes the basketball to fall back to the ground.
It is being acted on by an invisible force called
gravity, which is the basic force in the universe
that attracts all objects to each other.
1 Gravity has existed since the beginning of the universe. It is hard to understand how or why it
works, but we know it is always there because it holds everything in the universe in place. First,
you need to understand that there is a gravitational attraction between you and Earth, between
Earth and the Moon, and between Earth and the Sun. Even though you can’t feel it, the
gravitational attraction between you and Earth is what keeps your feet planted firmly on the
ground. Imagine spinning around and around on a merry-go-round. As long as you are holding
on, then you stay on the merry-go-round, but if you ever let go, you will fly off and land on the
ground. This is a useful analogy in visualizing the gravitational attraction between Earth and
you. Earth is spinning on its axis and thanks to gravity, you are held to your position on Eart
rather than flying out into space. Explanation: this is what i can do!:)
Answer:
I believe gravity is the most important aspect of our universe. Without it we would all be floating off into the universe. There wouldn’t be any orbits; instead, all planetary bodies would simply float around, running into each other when they crossed paths and just wandering forever.
Explanation:
this is the best match
An inclined plane creates a mechanical advantage of 5. What would the input force need to be to create an output force of 20 N?
A. 15 N
B. 100 N
C. 4 N
Can someone please give me this answe
Answer:
B
Explanation:
Generally, longer wavelengths have less energy than shorter wavelengths because the higher the frequency, the shorter the wavelength. Since radio waves have longer wavelengths than visible light, the correct answer should be B.
Okay I help some of you guys so can help me please
Can you guys please help me?
Answer:
20V
Explanation:
V = intensity * resistance
V = 2 * 10 = 20
Two resistors r1=100 ohm and r2=220 ohm are connected in series across a voltage of 6.4v calculate the resistance of the resistor equivalent to r1 and r2
Answer:
r_eq = 320 Ω
Explanation:
It is asked to find the equivalent resistance of a series circuit formed by two resistors r₁ and r₂
r_eq = r₁ + r₂
r_eq = 100 + 220
r_eq = 320 Ω
with this value we can find the current that circulates through the circuit
V = r_eq i
i = V / r_eq
i = 6.4 / 320
i = 0.02 A
6. A car experiences a forward engine force of 2000N. The combined frictional forces acting
on the car are 600 N. If the car is accelerating at 3.0m/s, what is the mass of the car?
Ans: 467 kg
(I need the equation and work of it!!!)
Answer:
i think
Explanation:
2000N-600N
net force=m.a
1400=m.3.0m/s
1400/30m/s=m
from here u divide using your calculator and i hope the answer you get is 467kg
What is the kinetic energy of a
54 kg person, diving into a pool
at a speed of 30 m/s?
Answer:
Explanation:
Formula
KE = 1/2 m v^3
Givens
m = 54 kg
v = 30 m/s
Solution
KE = 1/2 54 * 30^2
KE = 1/2 54 * 900
KE = 27 * 900
KE = 24300 Joules
a car's horn is honking at a constant frequency. as the car is driving away from you the pitch you hear will be ______ what is heard by the driver of the car
A. lower than
B. higher than
C. the same as
D. exactly twice
Answer:
Easy
Explanation:
A; lowe than
Please use this screenshot in any way you can
Para pagar la entrada al circo y comprar palomitas: Daniela y María van a cooperar con $65.50 cada una y Francisco y Javier con $69.50 cada uno. ¿Cuánto dinero van a reunir?
Answer:
Reunirán $270.
Explanation:
Para pagar la entrada al circo y comprar palomitas Daniela y María van a cooperar con $65.50 cada una. Entonces para calcular el dinero que van a reunir entre ambas debes sumar lo que aporta cada una:
$65.50 + $65.50= $131
Por otro lado, Francisco y Javier van a cooperar con $69.50 cada uno. De igual manera, para calcular el dinero que van a reunir entre ambos debes sumar lo que aporta cada uno:
$69.50 + $69.50= $139
Para conocer el dinero total recaudado, debes sumar lo que aportan tanto ellas como ellos. Esto es:
$131 + $139= $270
Reunirán $270.
a force 4000 n accelerates a car of mass 800 kg from rest to 20 ms how far does the car travel while the force is acting?
Answer:
d = 40 m
Explanation:
Given that,
Force, F = 4000 N
Mass of a car, m = 800 kg
Initial velocity, u = 0 (at rest)
Final velocity, v = 20 m/s
We need to find the distance traveled. Force acting on a car is given by :
F = ma
Where
a is the acceleration of the car.
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{4000}{800}\\\\a=5\ m/s^2[/tex]
Let it has traveled d distance. Using third equation of motion.
[tex]v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{(20)^2-(0)^2}{2\times 5}\\\\d=40\ m[/tex]
So, the required distance is equal to 40 m.