Answer:
It is destroyed in subduction zones. A Geologic process in which a tectonic plate made of dense lithospheric material melts or falls below a plate made of less-dense lithosphere at a convergent plate boundary
Explanation:
Hope this helps (:
a tennis ball is thrown straight up with an initial velocity of 22.5 m/s how much total time is the ball in the air
Answer:
4.6s
Explanation:
v=u+at
0=22.5+(-9.8)t
-22.5=-9.8t
t=-22.5/-9.8
t=2.295 s
The total time will double
2.295×2=4.59s
=4.6s
i’m about to end my life over this class I have a 46.9% right now :) do not take physics. i repeat if you’re seeing this DO NOT EVER TAKE PHYSICS.
In this diagram, which force is represted by L?
a. the force caused by the wings encoutering wind and air
b.the force caused by a draft of wind
c. the reaction force of wind and air that is pushed out of the way
d. the force that exists in reaction to gravity or weight
VR OF SECOND CLASS LEVER
Elements in the same group or family share important
Elements in the same group or family share important properties due to their similar electronic configurations and valence shell structure.
The periodic table is organized based on the electronic structure of atoms, specifically the arrangement of electrons in energy levels or shells. Elements within the same group or family of the periodic table have similar outer electron configurations, leading to shared properties and behaviors.
Elements in a group have the same number of valence electrons, which are the electrons in the outermost shell or energy level of an atom. Valence electrons are crucial because they determine an element's chemical reactivity and its ability to form bonds with other atoms.
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In which box could “gas” be placed?
*C. W is not the answer
A gold puck has a mass of 12 kg and a velocity of 5i – 4j m/s prior to a collision with a stationary blue puck whose mass is 18 kg. After an elastic collision, the blue puck has a velocity of 2i – 2j m/s. What is the velocity of the gold puck after the collision?
A. 2i –j m/s
B. 3i –j m/s
C. 2i – 2j m/s
D. 3i – 2j m/s
The velocity of the gold puck after the collision be (2i - j) m/s.
What is velocity?The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.
Given parameters:
Mass of the gold puck: m = 12 kg
Velocity of it before collision: u = 5i – 4j m/s.
Mass of the stationary blue puck: M = 18 kg.
Velocity of it after collision; V = 2i – 2j m/s.
We have to find: the velocity of the gold puck after the collision: v = ?
From conservation of linear momentum, we get:
Total momentum of the system before collision = Total momentum of the system after collision
⇒ mu + M.0 = mv + MV
⇒ v = u - MV/m
⇒ v = (5i – 4j) m/s - (2i – 2j)m/s×18/12.
⇒ v = (5i – 4j) m/s - (3i - 3j) = (2i - j) m/s.
Hence velocity of the gold puck after the collision be (2i - j) m/s.
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Questlon 6 of 10 Which two types of energy does an apple falling to the ground have?
A. Potential energy
B. Nuclear energy
C. Kinetic energy
D. Elastic energy
E. Sound energy
A. Potential energy C. Kinetic energy
I just took the quiz
Answer:
Potential energy + Kinetic energy
Explanation:
ap3x verified
What type of bond is shown in the figure?
Answer:
ionic
Explanation:
(Please answer quickly!)
Force and energy aren't the same thing but they are closely related. explain how.
Answer:
Explanation:
Bigger pushes and pulls cause bigger changes in an object's motion or shape. When objects collide, contact forces transfer energy so as to change the objects' motions. When two objects interact, each one exerts a force on the other, and these forces can transfer energy between them.
which one of the following is a derived Si unit a. Newton, b. Meter, c. Mole, d. Kiogram
I think newton is the answer
Answer:
The right answer is Newton.Bonus answer : Note;; There is a difference between SI base units & Derived SI unit.In the real world could the roller coaster car reach the top of the second hill if the second hill were as high as the firsts hill
Answer: No, it couldn’t. Energy leaves the system in the form of heat as the roller coaster cars travel from the top of one hill to the next. The vehicles have less total energy, so the potential energy at the top of the second hill must also be less. The cars wouldn’t be able to achieve the height of the first hill.
Explanation: Make sure to change some of it because it's from Edmentum!!
1.Why is wheel and axle a simple machine?
2.What is meant by effort is multiplied?
Answer:
The wheel and axle is a type of simple machine used to make tasks easier in terms of manipulating force by applying the concept of mechanical advantage.Due to the size difference in the radius of the wheel and axle, this means that the distance the two parts rotate through in the same amount of time is different.
Which of the following is NOT a likely result of regular physical activity?
Answer
decreased attention span
Explanation:
Will was riding his bike when a dog ran out in front of him. He slammed on his brakes. During this quick stop, some of the mechanical energy (his motion) was changed into
A) heat energy.
B) light energy.
C) kinetic energy.
D) gravitational energy.
Answer:
A
Explanation:
big brain
During this quick stop, some of the mechanical energy (his motion) was changed into heat energy.
What is energy?Energy is the ability to do work. There are different types of energy such as Heat energy, light energy, kinetic energy, and gravitational energy.
Heat is the energy that moves from one body to another when temperatures are different. Heat passes from the hotter to the colder body when two bodies with differing temperatures are brought together.
The joule is a unit of energy that serves as the SI unit for heat (J). The calorie (cal), which is defined as "the amount of heat necessary to raise the temperature of one gram of water from 14.5 degrees Celsius to 15.5 degrees Celsius," is another common unit of heat measurement.
Therefore, During this quick stop, some of the mechanical energy (his motion) was changed into heat energy.
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what is an example of a criteria
Answer:
sat scores what the other person said lol
Which is a physical property of matter that is always the same regardless of size or amount
Answer:
ntensive properties: A physical property that will be the same regardless of the amount of matter.
Explanation:
what is the science?
Answer:
science is something you learn
Explanation:
the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
"the world of science and technology"
Explanation:
Science is what we do to find out about the natural world. ... Natural science makes observations and experiments. Science produces accurate facts, scientific laws and theories. 'Science' also refers to the large amount of knowledge that has been found using this process. Research uses the scientific method.
The slope of a distance vs. time graph is a measurement called
A. displacement
B. speed
C. correlation
D. velocity
Answer:
B. speed
Explanation:
im not sure hahahaha
A 7kg of ball experiences a net force of 5N, what will be its acceleration.
paper craft wall hanging how is it ?
Answer:
Nice
Explanation:
Alok and his father are sitting at a distance of 5 meter on a seesaw. His father is at the distance of 2 meter from the fulcrum and Slok weighs 20 kg. If they are balancing the seesaw, find the weight of his father.
Answer:
30kg
Explanation:
Distance between Alok and father = 5m
Father's distance from fulcrum = 2m
Solak's weight = 20kg
Unknown:
Weight of the father = ?
Solution:
This problem entail the balancing of forces around a fulcrum.
In this problem;
workdone by father = workdone by Alok
( mass x distance) father = (mass x distance) Alok
distance of Alok from the fulcrum = 3m
Input the parameters and solve;
mass of father x 2 = 20 x 3
mass of father = 30kg
The weight of the father is 30kg
A shopping cart is initially at rest when it undergoes a constant acceleration. After
3.0 s, the cart has undergone a displacement of 15 m. What is the cart's
acceleration?
A.3.3 m/s2
B.0.83 m/s2
C.2.2 m/s2
D.68 m/s2
You are building a bridge, and you want to use a metal with the strongest metallic bonds. Which hypothetical element would you use? Metal A - melting point of 236 degrees Celsius Metal B - melting point of 2,678 degrees Celsius Metal C - melting point of 1,362 degrees Celsius Metal D - melting point of 800 degrees Celsius
Answer:
Metal B
Explanation:
Metallic bonds melt at high temperatures. Metal B has the highest melting point of the 4 metals given.
define fundamental units
Answer:
one of a set of unrelated units of measurement, which are arbitrarily defined and from which other units are derived. For example, in the SI system the fundamental units are the meter, kilogram, and second.
Explanation:
Two fish swimming in a river have the following equations of motion:
X 1 = - 6.4 m + (- 1.2 m/s) t
X 2 = 1.3 m + (- 2.7 m/s) t
Which fish is moving faster?
Answer:
The second fish, X2, is moving faster than the first fish, X1
Explanation:
The given parameters for the equation of motion of the fishes are;
X1 = -6.4 m + (-1.2 m/s)×t
X2 = 1.3 m + (-2.7 m/s)×t
The given equation are straight line equations in the slope and intercept form, where the slope is the speed and in m/s and the intercept is the starting point of swimming of the fishes
For the first fish, the intercept = -6.4 m, the slope = the speed = -1.2 m/s
For the second fish, the intercept = 1.3 m, the slope = the speed = -2.7 m/s
Whereby the fishes are swimming in the opposite direction of the measurement of length, we have;
The magnitude of the speed of the second fish [tex]\left | -2.7 \ m/s \right | = 2.7 \ m/s[/tex], is larger than the magnitude of the speed of the first fish [tex]\left | -1.2 \ m/s \right | = 1.2 \ m/s[/tex]
Therefore, the second fish, X2, is moving faster than the first fish, X1.
PLEASE HELP THIS IS DUE IN 10 MINUTES- (15 points!)
1st question- what are the weather fronts(use the pic for help)
2nd question- who has better weather— high pressure systems or low pressure systems and how do you know?
(Please add explanation)<3
Answer: I would say that B would have better weather because those dots on the right are cold fronts and the smooth side without the dots is a warm front. I hope this helps :)
Explanation:
What is weight? and what is mass
Two students described a part of Earth's innermost layer.
Daniel: Densest part
Joshua: Has highest temperature and pressure
Which part of the innermost layer did Daniel and Joshua describe?
They both described the outer part.
They both described the inner part.
Daniel described the outer part and Joshua described the inner part.
Daniel described the inner part and Joshua described the outer part.
Answer:
It is B
Explanation:
Because the high temp and perisher is inner and the densest is the same thing
Answer: They both described the inner part
Explanation:
50 POINTS! I really need help with these pressure and volume questions from Boyle's Law. PLEASE HELP
1.If a sample of gas has a volume of 100.0ml when the pressure is 50.0kPa, what is the volume when the pressure is increased to 400.0kPa, assuming temperature and number of moles is held constant?
2. What pressure would be required to take 100.0ml of a gas at 103.0kPa and squish it down to 2.00ml, assuming temperature and number of moles is held constant?
4. If the temperature and number of moles are held constant, what would be the new volume if 2.00cm3 of a gas at 3.00atm is changed to 0.0200atm?
7. What pressure must be applied to a sample of Freon gas having a volume of 325L at 20.0°C and 723Torr to permit the expansion of the gas to a volume of 975L at 20.0°C?
Answer:
1) [tex]V_{1}[/tex]= 100ml = 0.1 L
2) [tex]P_{1}[/tex]= 50kPa
[tex]1) P_{2} =400 kPa\\2)V_{2} =?[/tex]
So,
[tex]P_{1}V_{1} = P_{2} V_{2}[/tex]
[tex]V_{2} = \frac{0.1 x 50}{400}[/tex]
[tex]V_{2} = 0.0125 L[/tex]
[tex]2) V_{1} = 100 mL = 0.1 L\\P_{1}= 103 kPa\\V_{2}=2 mL\\P_{2} =?\\[/tex]
[tex]P_{1} V_{1} =P_{2} V_{2}\\ P_{2}=\frac{0.1x103}{2}\\ P_{2}=5.15 kPa[/tex]
[tex]4) V_{1}=2 cm^{3} = 0.002 dm^3\\P_{1} =3 atm x 760 = 2280 torr\\P_{2} = 0.0200 atm x 760=15.2 torr[/tex]
Same, formula as above,
[tex]V_{2}=\frac{2280x0.002}{15.2}\\V_{2}=0.3 L[/tex]
[tex]7)V_{1}=325\\T_{1}=20^{0}C=293K\\ P_{1}=723 torr\\V_{2}=975L\\T_{2} = 20^0 C= 293K\\P_{2}=?[/tex]
By the formula,
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}} \\P_{2} = \frac{723x325x293}{293x975}[/tex]
[tex]P_{2} =241 Torr[/tex]