Plasma is made up of about 90% water. It also has salts and enzymes.
Plasma has:
no fixed shape no fixed volume are less dense than liquids and solidsAnswer:
Plasma is made up of about 90% water . These are the properties of plasma. Plasmas have no fixed shape or volume, and are less dense than solids or liquids. Studying plasmas is critical to advance technology development for practical purposes as developing functional fusion reactors and to understand the processes in stars, planets and inter-stellar spaceI hope l helped you ❤❤How does the electric force between two charged particles change if the
distance between them is reduced by a factor of 2?
A. It is reduced by a factor of 2.
B. It is increased by a factor of 4.
C. It is increased by a factor of 2.
D. It is reduced by a factor of 4.
Answer:
increased by a factor of 4
Explanation:
A gun fires a bullet horizontally with a velocity of 90 m/s from a tower. Neglecting air resistance, how far will the bullet travel horizontally in 4 seconds?
Answer:
The distance covered along the horizontal axis is [tex]s = 360 \ m[/tex]
The distance covered along the vertical axis is [tex]h = 78.4 \ m[/tex]
Explanation:
From the question we are told that
The horizontal velocity is [tex]u_x = 90 \ m/s[/tex]
The time considered is [tex]t = 4 \ s[/tex]
Generally the distance which the bullet will cover in the horizontal direction for the given time is mathematically represented as
[tex]s = u_xt + \frac{1}{2}* at^2[/tex]
Here a is the acceleration along the horizontal direction and the value is [tex]a = 0 \ m/s^2[/tex]
So
[tex]s = 90 * 4 + \frac{1}{2}* * 0 * 4^2[/tex]
=> [tex]s = 360 \ m[/tex]
Generally the distance which the bullet will cover in the vertical direction for the given time is mathematically represented as
[tex]h= u_y t + \frac{1}{2}* gt^2[/tex]
Here [tex]u_y[/tex] is the initial velocity of the bullet along the vertical axis and the value is [tex]u_y = 0 \ m/s[/tex]
[tex]h = 0 * 4 + \frac{1}{2}* 9.8 *4^2[/tex]
=> [tex]h = 78.4 \ m[/tex]
Which is the correct equation for the force applied by a spring?
Answer:
B. [tex]F = -k*x[/tex]
Explanation:
The force of a spring can be easily calculated using Hooke's law which tells us that the force applied on a spring is equal to the product of the constant of a spring by the compressed or stretched distance of the spring.
That is:
[tex]F = k*x[/tex]
k = spring constant [N/m]
x = distance [m]
Name the following ionic compounds: BeCl2
Answer:
Beryllium chloride
Explanation:
I hope this helps!
Can I get branliest?!
What are the two things that make up water?
Answer:
hydrogen and oxygen (H2O)
Explanation:
thank u for the points i really appreciate it :3
Which of the following is an example of rotation?
O A. The Moon traveling around Earth
O B. A car driving around a racetrack
O C. Earth traveling around the Sun
O D. An ice skater spinning in place
what is the two kinds of solids in amorphous
Solids can be classified into two types: crystalline and amorphous. Crystalline solids are the most common type of solid. They are characterized by a regular crystalline organization of atoms that confer a long-range order. Amorphous, or non-crystalline, solids lack this long-range order.
Please help ASAP, studying for finals.
A racecar rounds a curve on the track at a constant speed of 180 mph. Is the car accelerating?
1)No, its mass is constant.
2)Yes, its mass is constant.
3) No, its speed is constant.
4)Yes, its speed is constant.
Answer:
3)No, it's speed is constant.
what is the oxidation number of the noble gases such as xenon and argon?
Please do all of i will give you brainlest and thanks to best answer plz do it right
Answer:
the answer is B
Explanation:
because i had this question in 8th grade
What is reflection of light and its laws ?
Answer:
So, put simply, reflection is light bouncing off surfaces. The law of reflection determines how the light bounces off a surface. The law of reflection states that the angle of incidence is equal to the angle of reflection.
Hope this helps..The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. (By convention, all angles in geometrical optics are measured with respect to the normal to the surface that is, to a line perpendicular to the surface.
You use a lever to lift a heavy tree branch. You apply a force of 30 N and the
lever lifts the branch with a force of 120 N. What is the mechanical advantage
of the lever?
A. 4
B. 0.25
C. 2
D. 90
Answer:
D 90 subtract it
Explanation:
Which of the following units are the Standard International units for
displacement?
A. Meters (m)
B. Meters per Second (m/s)
C.Meters per Second Squared (m/s2)
D. Seconds per Meter (s/m)
help me with this. its scienceee
Answer:
Imma say B
Explanation:
PLEASE HELP
A particle travels in a circle of radius 76 cm and completes one revolution in 4.5 s. What is the centripetal acceleration of the particle?
A. 2.8 m/s2
B. 1.5 m/s2
C. 0.97 m/s2
D. 3.3 m/s2
Answer:
option no B is the snswer
If the total (PE+ KE) before an event is equal to the total (PE+ KE) after the
event:
A. the PE must not change.
B. PE (before) = KE (before).
C. energy is conserved.
D. the momentum does not change
PLEASE HURRY
The total (PE+ KE) before an event is equal to the total (PE+ KE) after the event.
Hence, the correct option is C.
If the total (PE + KE) before an event is equal to the total (PE + KE) after the event, this means that the total energy of the system is conserved. This is known as the principle of conservation of energy.
It is not necessary for the potential energy to remain constant or for the potential energy before the event to equal the kinetic energy before the event. Rather, the total energy (the sum of potential and kinetic energy) of the system must be conserved.
Similarly, it is not necessary for the momentum to remain constant in this case. The conservation of momentum is a separate principle that applies when there are no external forces acting on the system.
Hence, the correct option is C.
To know more about total (PE+ KE) here
https://brainly.com/question/22623630
#SPJ1
I need to match the term with the definition
Please don't put a random answer
Answer:
A, B, C, D
Explanation:
Yes, i know it is abcd, but it is correct
Answer:
average speed - b
speed - d
acceleration- c
Instantaneous speed- a
Explanation:
I think I dont really remember
You are trying to climb a castle wall so, from the ground, you throw a hook with a rope attached to it at 24.1 m/s at an angle of 65.0° above the horizontal. If it hits the top of the wall at a speed of 16.3 m/s, how high is the wall?
Answer:
The value is [tex]h = 13.2 \ m[/tex]
Explanation:
From the question we are told that
The speed of the rope with hook is [tex]u = 24 .1 \ m/s[/tex]
The angle is [tex]\theta = 65.0^o[/tex]
The speed at which it hits top of the wall is [tex]v = 16.3 m/s[/tex]
Generally from kinematic equation we have that
[tex]v_y^2 = u_y ^2 + * 2 (-g)* h[/tex]
Here h is the height of the wall so
[tex][16.3 sin (65)]^2 = [24.1 sin (65)] ^2+ 2 (-9.8)* h[/tex]
=> [tex]h = 13.2 \ m[/tex]
Help me pretty please with a cherry on top!!
Answer:
A. im not for sure hope it helps
Explanation:
Which unmanned craft is used to collect data about bodies in space?
Answer:
space probe
Explanation:
Answer:
Space probe
~+ lil more info+~
Space probe is the unmanned craft used to collect data about bodies in space. Space probe is any unmanned, unpiloted spacecraft that is created to explore space and collect scientific data.
can i have brainlist? :)
Find the mass of an object moving at 20 m/s experiencing a momentum of 10
kg.m/s
Answer:
0.5 kgExplanation:
The mass of the object can be found by using the formula
[tex]m = \frac{p}{v} \\ [/tex]
p is the momentum
v is the velocity
From the question we have
[tex]m = \frac{10}{20} = \frac{1}{2} \\ [/tex]
We have the final answer as
0.5 kgHope this helps you
A researcher changes the DNA in a soybean plant so that it produces offspring with a resistance to weed killer. Which best describes this scenario? genetic engineering gene therapy cloning selective breeding
Answer:
Genetic engineering
Explanation:
Genetic engineering or also called genetic modification is the direct manipulation of an organism's genome in order to bring about a desirable trait in such organism. In genetic engineering procedure, the organism manipulated is called TRANSGENIC or GENETICALLY MODIFIED (GM) organisms.
In this case, a researcher is said to change the DNA (genetic material) in a soybean plant so that it produces offspring with a resistance to weed killer. This describes a genetic engineering procedure in which the soybean plant is manipulated to yield a desired trait, which is resistance to weed killer.
Answer:
A. genetic engineering
Explanation:
I took the quiz
Discuss the difference between short-term and long-term fitness goals. Provide an example of each
Answer:
. A long-term goal is a goal set for you to achieve with 3-5 years, while short-term goals take a few days, weeks, or maybe months. An example of a short-term is eating like less carbs. An example of a long-term running like a 5k marathon.
A particle is moving with simple harmonic motion of period 8•0 s and amplitude 5•0 m Fine (A). The speed of the particle when it's 3•0 m from the centre of it's motion (B). The maximum speed (C). The maximum acceleration
Answer:
a. v(1.8) = -3.14 m/s
b. [tex]v_{max} = 3.925\ m/s[/tex]
c. [tex]a_{max} = 3.08\ m/s^2[/tex]
Explanation:
a.
The speed of a particle executing simple harmonic motion is given by the following equation:
[tex]v(t) = -A \omega \ Sin(\omega t)[/tex]
where,
v = velocity = ?
A = Amplitude = 5 m
ω = angular frequency = [tex]\frac{2\pi}{Time Period} = \frac{2\pi}{8\ s}[/tex] = 0.785 s
t = time
First we find time at 3 m by using equation for displacement:
[tex]x = 3\ m = ACos(\omega t)\\Cos((0.785 rad/s)(t)) = \frac{3\ m}{5\ m}\\t(0.785\ rad/s) = Cos^{-1} (0.6)\\t = \frac{0.927\ rad}{0.785\ rad/s}\\t = 1.18 s[/tex]
Therefore,
[tex]v(1.8) = velocity at 3\ m = -A\omega Sin(\omega t)\\v(1.8) = -(5\ m)(0.785\ rad/s)Sin((0.785\ rad/s)(1.18\ s))\\[/tex]
v(1.8) = -3.14 m/s
c.
The maximum speed is given as:
[tex]v_{max} = A\omega\\v_{max} = (5\ m)(0.785\ rad/s)\\[/tex]
[tex]v_{max} = 3.925\ m/s[/tex]
The maximum acceleration is given as:
[tex]a_{max} = A\omega^2\\v_{max} = (5\ m)(0.785\ rad/s)^2\\[/tex]
[tex]a_{max} = 3.08\ m/s^2[/tex]
PLEASE HELP!!!! What happens to cause the tissue around a cut to become swollen run and painful
O A .White blood cells burst and release wastes made by digesting pathogens.
O. B Fluid and white blood cells move into the tissue from nearby blood vessels
O. C Lymph nodes develop in the tissue and begin trapping pathogens
O. D Chemical messengers released by the tissue cause nearby muscles to contract and pull on bones
Answer:
the answer would be B
Explanation:
swelling is the result of the increased movement of fluid and white blood cells into the injured area.
Please help. I'll give brainliest :)
What happened to the supercontinents Columbia and Rodina?
They broke up and formed into the current land masses and
ocean floors.
The action of continental drift broke up Columbia an Rodina
into smaller continents.
The action of plate tectonics broke up Columbia and Rodina into
smaller continents.
They were formed before the process of plate tectonics began.
Explanation:
The choices aren't exactly correct. Technically, Rodinia pulled apart from tectonics, but then it slammed back together on the other side of the planet to form Pangea.
I guess C would be the closest correct answer.
Answer:
Is The First One-They broke up and formed into the current land masses and
ocean floors.
Explanation:
I Took The Quiz:)
Question 6 (10 points)
The Washington Monument in our nation's capital is 555 ft high. Neglecting the effects of air resistance, what would be the
speed of the penny as it "hit" the ground?
оа
Ob
Oc
Od
48.3 m/s
-68.4 m/s
84.7 m/s
-57.6 m/s
Answer:
a= g = - 9.81 m/s2.
The following equations will be helpful:
a = (vf - vo)/t d = vot + 1/2 at2 vf2 = vo2 + 2ad
When you substitute the specific acceleration due to gravity (g), the equations are as follows:
g = (vf - vo)/t d = vot + 1/2 gt2 vf2 = vo2 + 2gd
If the object is dropped from rest, the initial velocity ("vi") is zero. This further simplifies the equations to these:
g = vf /t d = 1/2 gt2 vf2 = 2gd
The sign convention that we will use for direction is this: "down" is the negative direction. If you are given a velocity such as -5.0 m/s, we will assume that the direction of the velocity vector is down. Also if you are told that an object falls with a velocity of 5.0 m/s, you would substitute -5.0 m/s in your equations. The sign convention would also apply to the acceleration due to gravity as shown above. The direction of the acceleration vector is down (-9.81 m/s2) because the gravitational force causing the acceleration is directed downward.
hope this info helps you out!
HELP PLS. WILL GIVE OUT BRAINLIEST!!!
What word is used to refer to a group of organ systems working together?
organism
cell
tissue
organ
Answer:
organism
Explanation:
In the systems
First is
1.cell
group of cells is
2. Tissue
group of tissues
3. Organ
group of organs
4. Organ system
group of organ systems
5.Organism
ANSWER RIGHT AND YOU WILL GET BRAINLIEST * A car is traveling with a constant speed of 20 m/s. If the car has a mass of 1300 kg, what is its kinetic energy?
Answer:
260,000 JExplanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
v is the velocity
m is the mass
From the question we have
[tex]k = \frac{1}{2} \times 1300 \times {20}^{2} \\ = 650 \times 400 \\ = 260000[/tex]
We have the final answer as
260,000 JHope this helps you
Which type of wave transfers energy in the same way as a sound wave?
A
Radiation wave
B.
Seismic wave
C.
Heat wave
D.
Light wave
Answer:
Radiation wave
Explanation: