What are period 2 elements called?
Answers
Period 2 elements are called as Bridge elements.
When we go through the detailed analysis of the periodic table we get that the elements like Li, Be, B, C, N, O, F, and Ne are the elements which are in the second period of the periodic table.
Such elements have similar qualities and can be compared to those from the third period or the usual elements. The elements of period 2 have common traits on the basis of factors like ion polarization and electronegativity with the elements of period 3.
Due to this distinct behaviour, such elements are named "bridge elements"
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Related Questions
plzzzz urgent
solve this
Answers
Answer:
\( \large{ \tt{☄ \: EXPLANATION}} : \)
Before solving , You'll have to know - When an object starts from the state of rest , in this case , initial velocity ( u ) = 0Notice that we're provided the time ( t ) in minutes. So , first thing we have to do is convert the minutes into seconds. It would be - Time ( t ) = 5 minutes = 5 × 60 sec = 300 sec [ 1 min = 60 sec ]Here , We're provided - Initial velocity ( u ) = 0 , Final velocity ( v ) = 60 m / s , Time taken ( t ) = 300 seconds & We're asked to find out the acceleration ( a ) & distance covered by the jeep ( s ) .\( \large{ \tt{♨ \:LET'S \: START}} : \)
Acceleration is defined as the rate of change of velocity. We know :\( \large{ \boxed{ \tt{❁ \: ACCELERATION \: (a) = \frac{FINAL \: VELOCITY(v) - INITIAL \: VELOCITY(u)}{TIME \: TAKEN \: ( \: t \: )}}}} \)
- Plug the values & then simplify !
\( \large{ \bf{↬a = \frac{60 - 0}{300} = \frac{60}{300} = \boxed{ \bold{ \bf{0.2 \: m {s}^{ - 2} }}} }}\)
The acceleration of the jeep is 0.2 m/s²\( \large{ \tt{۵ \: AGAIN, \: USING\: SECOND \: EQUATION \: OF \: MOTION}} : \)
\( \boxed{ \large{ \bf{✾ \: s = \frac{u + v}{2} \times t}}}\)
- Plug the values & then simplify !
\( \large{ \bf{↦s = \frac{0 + 60}{2} \times 300 = \boxed{ \bold{ \bf{9000 \: m}}}}}\)
The distance covered by the jeep is 9000 m .❃ The days that break you are the days that make you ! ♪
♡ Hope I helped! ツ
☃ Have a wonderful day / evening ! ☼
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Answer:
What she said is right I know it is
All of following are types of kinetic energy EXCEPT for: *
O sound energy
O thermal energy
Olight energy
O chemical energy
O mechanical energy
Answers
Select the correct answer. An object has one force acting on it. It is a 33-newton force pointing downward. To create a net force of zero on the object, which force must be applied to it? Group of answer choices a 1-newton force pointing right a 0-newton force pointing downward a 33-newton force pointing upward a 33-newton force pointing left a 1-newton force pointing upward
Answers
Answer:
33 Newton upwards to get a net force of zero.
Answer:
The answer is 33 newtons with a net force of 0
Explanation:
what is nuclear energy and write down it's two applications of this type of energy?
Answers
Background: Nuclear energy can be used for various industrial applications, such as seawater desalination, hydrogen production, district heating or cooling, the extraction of tertiary oil resources and process heat applications such as cogeneration, coal to liquids conversion and assistance in the synthesis of chemical ...
If you push on an object with 10 N to the right and your friend pushes with 20 N to the left, what direction will the object move?
Answers
Answer:
The answer is left
Explanation:
because 20N is greater Then 10N
A laser penis pointed at a dark wall. A spot of light is seen at exactly where the pen is pointing. Which property of light does this
show?
A Light travels in a straight line.
B Light can pass through some surfaces
C
. Light can be reflected,
OD Light travels faster than sound,
Answers
A. Light travels in a straight line.
Expliantion: study island
An example of an insulator is
a, rubber.
b. copper
Csilver
d. iron
Please select the best answer from the choices provided
OA
ОВ
Ос
OD
Answers
A box having a mass of 1.5 kg is accelerated across a table at 1.5 m/s2. The coefficient of friction on the box is 0.3. What is the force being applied to the box? If this force were applied by a spring, what would the spring constant have to be in order for the spring to be stretched to only 0.08 m while pulling the box?
Answers
Force = mass x acceleration
Plugging in the given values, we get:
Force = 1.5 kg x 1.5 m/s²
Force = 2.25 N
Therefore, the force being applied to the box is 2.25 N.
To find the spring constant required to stretch the spring only 0.08 m while pulling the box, we can use Hooke's law:
Force = spring constant x displacement
Plugging in the given values, we get:
2.25 N = k * 0.08 m
Solving for the spring constant, we get:
k = 2.25 N / 0.08 m
k = 28.125 N/m
Therefore, the spring constant would have to be 28.125 N/m in order for the spring to be stretched to only 0.08 m while pulling the box with a force of 2.25 N.
True or False. The composition of the lining material affects brake operation. Materials that provide good braking with low pedal pressures tend to lose efficiency when they get hot.
Answers
The given statement "The composition of the lining material affects brake operation. Materials that provide good braking with low pedal pressures tend to lose efficiency when they get hot." is true. The composition of the lining material indeed affects brake operation.
The composition of the lining material does affect brake operation, and materials that provide good braking with low pedal pressures may indeed lose efficiency when they get hot. This is because heat can cause the lining material to glaze or harden, reducing its ability to create friction and slowing down the vehicle. Materials that provide good braking with low pedal pressures can lose efficiency when they get hot.
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help help help im so bad at science ToT
Answers
are same side exterior angles congruent or supplementary?
Answers
The same-side exterior angles are not congruent, they are supplementary. The same side exterior angles are formed and they have a sum of 180 degrees.
What is meant by congruence?Congruent refers to having the same precise size and shape. Even if we flip, turn, or rotate the forms, their shape and size need to remain constant. If it is possible to superimpose one geometric figure onto the other such that they correspond throughout, then the two are said to be congruent, or to be in the relation of congruence.
In general relativity, a congruence (more precisely, a congruence of curves) is the collection of integral curves of a (never vanishing) vector field in a four-dimensional Lorentzian manifold that is used to physically represent spacetime.
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A toy rocket fires its engines to launch it straight up from rest. After a
short time, the engine turns off and the rocket continues before falling
back to the ground. The velocity - time graph for the rocket's complete
journey is shown.
60
SO
30
20
10
0
2
10
6 8
12 14
16
Time (s)
18 20
22 24
Velocity (m/s)
-10
-20
-30
40
-50
-60
-70
-80
Use the graph to calculate the acceleration of the rocket while the engine is working. Show all steps.
Answers
i will say that 32.2m s2 bt am not sure
How is high speed internet transmitted around the world?
Answers
Answer:
How is high-speed internet typically transmitted around the world? over telephone wires b. through fiber optic cables c. beamed wirelessly to homes d via satellites
Explanation:
A solar-powered car has a kinetic energy of 110250 J. Its mass is 180 kg. Work out how fast the car is travelling Enter a number m/s
Answers
Answer: Velocity = v = 35 m/s
Explanation:
Kinetic energy of an object is defined as the energy possess by an object due to its motion. Kinetic energy K.E of an object is equal to the half of the mass of that object multiplied by square of the object's velocity.
Mathematically,
v = 35 m/s
And tell me I was holding a 1 pound bag of apples and his left hand and a 2 pound bag of apples in his right hand which sentences about this situation are true
Answers
Answer:
B. Antonio is applying a 1-pound force to hold the 1-pound bag. E. The mass of the bag in his left hand is less than the mass of the bag in his right hand.Explanation:
In order for one to carry something, they need to be exerting a force that is equal to the weight of the object. For Antonio therefore to hold the 1-pound bag, he needs to apply a 1-pound force.
Pounds measure the mass of an object. On his left hand Antonio has 1 pound and on the right he has 2. He is therefore carrying more mass on his right hand than on his left.
what is the value of universal gravitational constant
Answers
Answer:
67408*10-11m3kg-1s-2
Answer:
6.673×10^-11
Explanation:
A ball is thrown with a velocity of 15 m/s. If the de Broglie wavelength of the ball is 4.02 E-35 m, what is the mass of the ball?
O0.54 kg
O 0.72 kg
O 0.90 kg
01.1 kg
Answers
The mass of the ball is approximately 0.90 kg.
The de Broglie wavelength (λ) of a particle is given by the equation λ = h / p, where h is the Planck's constant and p is the momentum of the particle. In this case, we are given the de Broglie wavelength (4.02 E-35 m) and the velocity of the ball (15 m/s).
To find the momentum (p) of the ball, we can use the equation p = m * v, where m is the mass of the ball and v is its velocity. Rearranging the equation, we get m = p / v.
Substituting the given values, we have p = h / λ = (6.626 x 10^-34 J·s) / (4.02 x 10^-35 m) ≈ 1.647 x 10^-9 kg·m/s.
Now, we can calculate the mass of the ball by dividing the momentum by the velocity: m = (1.647 x 10^-9 kg·m/s) / (15 m/s) ≈ 1.098 x 10^-10 kg ≈ 0.90 kg (rounded to two decimal places).
Therefore, the mass of the ball is approximately 0.90 kg.
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when a shotgun fires multiple projectiles what is it called?
Answers
Answer: shot
Explanation:
However, a shotgun is capable of firing multiple projectiles with each pull of the trigger. We call the projectiles “shot.” They range from super tiny (the smallest #12 shot measures only 0.05 inches in diameter) to fairly substantial (0000 buckshot measures 0.38 inches across)
When a shotgun fires multiple projectiles what is it called a shotgun slug.
What is a shotgun slug ?
A shotgun slug is a term used for a bulky solid ballistic projectile.
Shotgun shotgun slugs are used to hunt medium to large game at short ranges by firing a single large projectile rather than a large number of smaller ones.
When a shotgun fires multiple projectiles what is it called a shotgun slug.
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please who can give me the definition of density in terms of Archimedes principle.
Answers
\(\large\bold{\underline{\underline{Answer:-}}}\)
The weight of the fluid displaced is equal to the buoyant force on a submerged object. The mass divided by the volume thus determined gives a measure of the average density of the object.What is the direction of the force in question 2?
A) east
B) north
C) up
D) down
Answers
d down
Explanation:
i don't have an explanation because my uncle answered this question
Question 9 of 15
6
an object is moving due north at 32m/s does this tell you the speed or the velocity of the object, or
both?
Answers
Given that the object is moving due north at 32 m/s, this simply expresses the velocity of the object.
What is a scalar quantity?This is a quantity that has magnitude but no direction. Examples include energy, work, speed, distance etc
What is a vector quantity?This is a quantity which have both magnitude and direction. Example include acceleration, velocity, moment, displacement etc
What is velocity?Velocity is the rate of change of displacement with time.
Velocity = displacement / time
Velocity can be written as 4 m/s due east
What is speed?This the distance travelled per unit time.
Speed = distance / time
Speed can be written as 4 m/s
Considering the question given above, we were told that the object is moving due north. This simply talks about the velocity.
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What is the kinetic energy of a 200kg boat moving at 2.7m/s?
Answers
Answer:
729 JoulesExplanation:
Kinetic energy is 1/2mv²
where m is the mass of the object
v is the velocity
From the question
m = 200kg
v = 2.7m/s
Kinetic energy is
1/2 × 200 × 2.7²
= 729 Joules
Hope this helps you
Find the range for the following set of data: 22, 36, 7, 19,56.
Answers
56-7
49
The range is 49
Hope that helps :)
Answer:
49 is the answer
Explanation:
Take the highest number and the lowest and subtract! :)
What can be said of the size of the event horizon for a 10Msun black hole?
-larger than that of a 1Msun black hole.
-smaller than that of a 1Msun black hole.
-the same size as for a 1Msun black hole (because the escape velocity for both is the speed of light).
Answers
The event horizon of a black hole is the boundary beyond which nothing, not even light, can escape its gravitational pull. The size of the event horizon is directly related to the mass of the black hole.
Specifically, the Schwarzschild radius formula can be used to determine the size of the event horizon, which is given by Rs = 2GM/c^2, where Rs is the Schwarzschild radius (event horizon radius), G is the gravitational constant, M is the mass of the black hole, and c is the speed of light. For a 10Msun black hole, the event horizon will be larger than that of a 1Msun black hole. This is because the mass term (M) in the formula directly affects the event horizon size. When comparing a 10Msun black hole to a 1Msun black hole, the 10Msun black hole has 10 times the mass, which will result in a correspondingly larger event horizon. The escape velocity for both black holes is indeed the speed of light, but their event horizons will differ in size due to the variation in mass.
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. the fifth root of fifteen is equal to ________. 15 raised to the power of 15 one fifth of 15 15 raised to the power of 1/5 one fifteenth of 15
Answers
The fifth root of fifteen is equal to c. 15 raised to the power of 1/5.
This means that if we take the number 15 and raise it to the power of 1/5, we will get the fifth root of fifteen, to understand this better, let's first look at what a root is. A root is the inverse of a power, for example, if we have 2^3 = 8, the inverse of this operation would be taking the cube root of 8, which gives us 2 as the answer.
In this case, the fifth root of fifteen means we are looking for the number that, when raised to the power of 5, equals 15. So, if we take 15 and raise it to the power of 1/5, we are essentially finding the number that, when multiplied by itself 5 times, equals 15. Mathematically, we can express this as: (15)^(1/5) = x, where x is the fifth root of fifteen. Therefore, the answer to the question is: the fifth root of fifteen is equal to c. 15 raised to the power of 1/5.
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As insulators, dielecctrics are expected to prevent the passage of current through them. Their main funtion is to temporarily store harges for future use, which is definitely an advantage or a good thing. Likewise, when was the last time you did a good thing for the people arund you? Think of an unexpected at of goodwill, generosity, or kindness
Answers
The Dielectrics are indeed very useful as insulators and their ability to store charges for future use is highly beneficial in many applications. However, as an AI language model, I do not have personal experiences or emotions like humans do. Therefore, I cannot provide you with a specific example of a recent act of kindness or generosity.
The Nevertheless, I can encourage you to think about the positive impact that such actions can have on the people around you. Acts of goodwill and kindness can range from small gestures like holding the door open for someone or giving a compliment, to larger actions like volunteering or donating to a charitable cause. Being kind and generous not only benefits those around us, but it can also have positive effects on our own well-being and mental health. Research has shown that acts of kindness can release feel-good hormones like oxytocin, which can reduce stress and improve mood. In conclusion, while dielectrics serve a practical purpose in insulating and storing charges, it is important to also remember the value of kindness and generosity in our daily lives. By making small gestures of goodwill towards others, we can all contribute to a more positive and compassionate society.
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Deimos, a satellite of Mars, has an average radius of 6.3 km. If the gravitational force between Deimos and a 3.0 kg rock at its surface is 2.5 * 10−2 N what is the mass of Deimos?
Answers
The mass of Deimos is approximately 9.52 x 10^15 kg.
To find the mass of Deimos, we can use the formula for gravitational force:F = G * (m1 * m2) / r^2. where F is the gravitational force between two objects, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass.
In this problem, we know the radius of Deimos (r = 6.3 km = 6.3 x 10^3 m), the mass of the rock on its surface (m1 = 3.0 kg), and the gravitational force between them (F = 2.5 x 10^-2 N). We can also look up the value of G: G = 6.674 x 10^-11 N(m/kg)^2.
We want to solve for the mass of Deimos (m2). Rearranging the formula, we get: m2 = (F * r^2) / (G * m1). Substituting the given values, we get: m2 = (2.5 x 10^-2 N) * (6.3 x 10^3 m)^2 / (6.674 x 10^-11 N(m/kg)^2 * 3.0 kg). m2 = 9.52 x 10^15 kg.Therefore, the mass of Deimos is approximately 9.52 x 10^15 kg.
It is worth noting that this calculation assumes that the rock on Deimos' surface is not affecting its orbit significantly. In reality, the gravitational force between the rock and Deimos would cause some perturbations in Deimos' orbit, but they are likely to be very small due to the small mass of the rock compared to Deimos.
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To find the mass of Deimos, we can use the gravitational force formula:
F = G * (m1 * m2) / r^2
Where F is the gravitational force (2.5 * 10^(-2) N), G is the gravitational constant (6.674 * 10^(-11) Nm^2/kg^2), m1 is the mass of Deimos (which we want to find), m2 is the mass of the rock (3.0 kg), and r is the distance between their centers, which is equal to Deimos' radius (6.3 km or 6300 m).
Rearranging the formula to solve for m1 (the mass of Deimos):
m1 = (F * r^2) / (G * m2)
m1 = (2.5 * 10^(-2) N * (6300 m)^2) / (6.674 * 10^(-11) Nm^2/kg^2 * 3.0 kg)
After calculating, we find that the mass of Deimos is approximately 1.0 * 10^15 kg.
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how does this explain the action of a bullet fired from a gun.
Answers
Answer:
When a bullet is fired from a gun, the gun exerts a force on the bullet in the forward direction. This is force is called as the action force. The bullet also exerts an equal and opposite force on the gun in the backward direction. Therefore a gun recoils when a bullet is fired from it.
PLEASE HELP ME
Which statement below accurately compares resistance and resistivity?
A. Resistance does not depend on size, shape, or amount of a material, while resistivity does.
B. Resistivity does not depend on size, shape, or amount of a material, while resistance does.
C. Resistance and resistivity both depend on size, shape, or amount of a material.
D. Resistance and resistivity are two words for the same physical property of a material and are measured in ohms.
Answers
How do the offspring produced by asexual reproduction differ from those produced by sexual reproduction?
А.
Offspring produced by asexual reproduction are bigger.
В.
Offspring produced by asexual reproduction use more energy.
С.
Offspring produced by asexual reproduction are more uniform.
D
Offspring produced by asexual reproduction are produced more slowly.
Answers
Answer:
Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.
Explanation: