Answer:
the answer is 2 electrons
Explanation:
The oxygen atom has atomic number 8, therefore its electronic configuration is
1s² 2s² 2p⁴
the sublevel s has a capacity for 2 electrons so it is full
the sublevel p has capacity for 6 electrons, as in this atom it has only 4 electrons it needs two (2) more electrons to have its full capacity and to achieve maximum stability.
Consequently the answer is 2 electrons
Answer: The guy above is correct!
Explanation: It is A. two
In which general compass traction is this hurricane moving
Answer:
It looks like its moving north.
Explanation:
A spring is pulled to 10 cm and held in place with a force of 500 N. What is the spring constant of the spring in N/cm?
Answer:
K=50N/cm
Explanation:
Force can be calculated using below expresion;
F=ke
where f = force,
k =spring constant,
e = extension
force = 500 N
e= 10 cm =
Then substitute, the given values
500=10 × k
k=500/10
K=50N/cm
How can we define force?
Explanation:
A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.
Answer:
There are 2 definitions chose the suitable one for ur question
Explanation:
1. strength or energy as an attribute of physical action or movement.
2. coercion or compulsion, especially with the use or threat of violence.
HOPE THIS HELPS
True or False: Speed is a vector quantity.
Answer:
it's false coz
Speed is a scalar quantity.
Find the magnitude of the sum of two vectors; A is 5 km , and B is 7 , when the angle btween them is 120
Answer: 6.24 km
Explanation:
Given
The magnitude of the first vector(say) [tex]\left | a\right |=5\ km[/tex]
the magnitude of the second vector(say) [tex]\left | b\right |=7\ km[/tex]
the angle between them is [tex]120^{\circ}[/tex]
The resultant vector magnitude is given by
[tex]\left | \vec{R}\right |=\sqrt{a^2+b^2+2ab\cos \theta}[/tex]
[tex]\left | \vec{R}\right |=\sqrt{5^2+7^2+2\times 5\times 7\cdot \cos 120^{\circ}}\\\left | \vec{R}\right |=\sqrt{74-35}=\sqrt{39}\\\left | \vec{R}\right |=6.24\ km[/tex]
A concave mirror is also known as converging mirror
Answer:
true
Explanation:
they have a reflecting surface that is recessed inward
A horizontal net force F is exerted on an object at rest. The object starts at x=0 m and has a speed of 4.0 m/s after moving 4.0 m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below
Explanation:
The solution is be found in the attachment.
A horizontal net force F is exerted on an object at rest. The object starts at x = 0 m and has a speed of 4.0 m/s after moving 8.0 m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below.
What is the mass of the object?
Answer: 30 kg
- calculate the BMI for a person who is 5'1" and weighs 172 pounds. Before you
calculate the BMI you must convert the height into meters and the weight into kg. You can use
the internet to convert them.
A. 32.9
B. .03
C. 184.86
THIS IS FOR PE PLEASE HELP JTS FOR EXTRA CREDIT
Answer:
It is 32.9
Explanation:
Move the slider on the battery to give it some voltage. What do the particles moving through the coil of wire represent?
It represents electrons. The moving electrons show current passing through the wire
Other than the resultant force acting on an object what else do you need to know to calculate the acceleration??
In addition to the resultant force acting on an object, the mass of the object should be known to find the acceleration. So, the mass is the answer.
Newton's second law of motion states that
a = F / m
Where:
a is the acceleration of the object,
The net force acting on the object is F
m is the mass of the object.
By dividing the net force (F) by the mass (m), you can determine the acceleration (a) of the object.
So, both the net force and the mass are necessary to calculate the acceleration. So, the mass is the answer.
To know more about mass:
https://brainly.com/question/30940568
#SPJ4
Usain Bolt is the fastest human at 12.4 m/s. If Usain Bolt had a mass of 94kg, what was Usain Bolt’s KE?
Answer:The fastest recorded human footspeed was recorded between 60 and 80m in Bolt's world record 9.58-second 100m final in Berlin in 2009. Bolt was clocked at 44.72km/h, which is 27.8mph. The Jamaican covered the distance between 60-80m in a time of just 1.61 seconds
Explanation:
pls brainlist too
PLS HELP!!! Response: Develop a unique example (not posted on the discussion board by anyone else) and calculate the resultant displacement between two points when there are two legs or distinct parts to the trip. Include the displacement of each leg of the trip as well as the resultant displacement of the entire trip. Don't forget: include both the direction and the magnitude as part of the displacement. Research the actual distance between these two points on the globe. Compare the resultant displacements and account for the error. Don't forget: include both the direction and the magnitude as part of the displacement.
Answer:
he is the first person can be 3in and a 6man is the best not a man of the hartford
2.
______ is stored energy due to its position.
Answer:
Potential energy
u welcome lol
a rock is an example of a solid because
Answer:
The key is that solids hold their shape and they don't flow like a liquid. A rock will always look like a rock unless something happens to it.
Solids can hold their shape because their molecules are tightly packed together.
Explanation:
Yes; it is a solid
7. Which best describes the energy change th pushes a large rock down a hill?
A: sound energy kinetic energy
B:, potential energy kinetic energy
C: kinetic energy mechanical energy
D: mechanical energy sound energy
Answer:
B
Explanation:
Gravitational Energy is the energy of position or place. A rock resting at the top of a hill contains gravitational Potential energy. Hydropower, such as water in a reservoir behind a dam, is an example of gravitational potential energy.
Which correctly describes have any giveaway on the electromagnetic spectrum depends on the wavelength and frequency
Answer:
c = λ f
Explanation:
In the electromagnetic spectrum, the wavelength and frequency of a specific radiation are related to the speed of the wave, which in this case the speed of light
c = λ f
where c is the speed of light, λ the wavelength and f the frequency of radiation
A total lunar eclipse is:
a. Visible only from the path of totality
b. Visible to all observers on the night time side of the earth
c. Visible only during a new moon
d. an opportunity to study the corona of the sun
Answer:
B) Visible to all observers on the night time side of the earth
Explanation:
I hope this helps.
A police car is moving east at 20m/s towards a driver who is moving west at 25m/s. The police car emits a frequency of 900Hz. What frequency is detected by the driver? The speed of sound at the time of this occurrence was 343m/s.
Answer:
f = 2445 Hz
Explanation:
i did the quiz
The frequency that the driver (observer) detects is equal to 1008 Hz
Given the following data:
Observer velocity = 25.0 m/sFrequency of sound = 900 HzSource velocity = 20.0 m/s Speed of sound = 343 m/sTo calculate the frequency that the driver (observer) detects, we would apply Doppler's effect of sound waves:
Mathematically, Doppler's effect of sound waves is given by the formula:
[tex]F_o = \frac{V \;+ \;V_o}{V\; - \;V_s} F[/tex]
Where:
V is the speed of a sound wave.F is the actual frequency of sound.[tex]V_o[/tex] is the observer velocity.[tex]V_s[/tex] is the source velocity.[tex]F_o[/tex] is the observer frequency.Substituting the given parameters into the formula, we have;
[tex]F_o = \frac{343 \;+ \;20}{343\; - \;20} \times 900\\\\F_o = \frac{363}{323} \times 900\\\\F_o = 1.12 \times 900\\\\F_o =1008 \;Hz[/tex]
Driver (observer) frequency = 1008 Hz
Read more: https://brainly.com/question/23460034
A wave has a period of 2 seconds and a wavelength of 4 meters. Calculate its frequency and speed.
Note: Recall that the frequency of a wave equals 1/period & the period of a wave equals 1/frequency.
Answer:
frequency = 0.5 /s
speed = 2m/s
Explanation:
frequency = 1/period = 1/2 = 0.5 /s
speed = frequency × wavelength
= 0.5 × 4 = 2m/s
, A 50 kg astronaut weighs 490 N. What would she way if she landed on Jupiter‘s moon Callisto what fraction is this of her weight on earth?
Answer:
The fraction of the weight of the astronaut on Callisto to the weight on Earth is 0.126.
Explanation:
From Newton's Law of Motion, the weight ([tex]W[/tex]), measured in newtons, of an object is defined by this expression:
[tex]W = m\cdot g[/tex] (1)
Where:
[tex]m[/tex] - Mass, measured in kilograms.
[tex]g[/tex] - Gravitational acceleration, measured in meters per square second.
The gravitational acceleration in Callisto is 1.236 meters per square second.
If we know that [tex]m = 50\,kg[/tex] and [tex]g = 1.236\,\frac{m}{s^{2}}[/tex], then the weight of the astronaut in Callisto is:
[tex]W = (50\,kg)\cdot \left(1.236\,\frac{m}{s^{2}} \right)[/tex]
[tex]W = 61.8\,N[/tex]
And the fraction is:
[tex]x = \frac{61.8\,N}{490\,N}[/tex]
[tex]x = 0.126[/tex]
The fraction of the weight of the astronaut on Callisto to the weight on Earth is 0.126.
2. A bullet was shot by a gun with an initial speed of 260 m/s and is fired at an angle of 30 to the ground. a. How much is the value Vy at the top of the bullet's trajectory? b. Calculate the time taken by the bullet to reach its maximum altitude. c. Deduce the total time taken by the bullet in the air. d. Calculate the range of the bullet.
Answer:
Explanation:
a )
the value Vy at the top of the bullet's trajectory will be zero . At the top , only the horizontal component Vx will exist .
b )
At the top Vy = 0
initial velocity will have vertical component = 260 sin30 = 130 m /s
acceleration = - g = - 9.8
v = u - gt
o = 130 - 9.8 t
t = 13.26 s .
c )
Total time = Time of ascent + time of descent
= 13.26 + 13.26 = 26.52 s
d )
Range R = u² sin2Ф / g , where u is initial velocity , Ф is angle of throw , g is acceleration due to gravity .
R = 260² sin 2 x 30 / 9.8
= 5973.8 m .
A student attaches a block to a vertical spring of unknown spring constant so that the block-spring system will oscillate if the block-spring system is released from rest at a vertical position that is not the system’s equilibrium position. The student varies the object’s mass and uses a stopwatch to determine the time it takes the object to make one oscillation. The student creates the graph that is shown. The slope of the line of best fit is equal to which of the following quantities?
Answer:
D: 2π/√k0
Explanation:
I got it right
The slope of the line of best fit is the quantity 2π/√ko.
The line of best fits is used to show the relationship between two variables. The nature of the graph shows the relationship between the variables.
We can see that this is a graph of the period of oscillation against the square root of the mass of the body. The slope of the line of best fit is the quantity 2π/√ko.
Learn more about oscillation: https://brainly.com/question/3930479
PHYSICS physics help me pls!
the question is not clear for me the mass of the word and the pivot the artist as the counterweight of the end we calculate the mass of the counterweight sorry
Answer:
calculate mass of the counterweight?
Explanation:
Which statement best describes what occurs when a warm front occurs?
A)Snow showers occur, followed by colder weather.
B)The weather doesn't change.
C)Rain and showers occur, followed by warmer weather.
D)Cloudy, cold weather occurs.
Which type of information about rattlesnakes does the bar graph above show?
Answer:
Variation
Explanation:
A person drives for 1.00 h at 10.0 km/h and 2.00 h at 20.0 km/h. What is their average speed, in SI units?
A.
4.63 m/s
B.
16.7 km/h
C.
10.3 mph
D.
16.7 m/s
can someone help me please
A plant fertilized by another plant is called __________. *
Answer:
pollination
Explanation:
it involves the transfer of a fertilized plant to another
Answer:
pollination
Explanation:
plants can't really do much without bees keep in mind
Which element’s symbol could replace the question mark in the diagram? carbon (C) tellurium (Te) beryllium (Be) cesium (Cs)
Answer:
Tellurium
Explanation:
Answer:
Tellurium
Explanation:
A coin is dropped off of a building landing on its side. It hits with a pressure of 400/2 It hits with a force of 0.1 Calculate the area of the coin?
Complete Question:
A coin is dropped off of a building landing on its side. It hits with a pressure of 400 N/m². It hits with a force of 0.1N. Calculate the area of the coin?
Answer:
Area = 0.00025 m²
Explanation:
Given the following data;
Pressure = 400N/m²
Force = 0.1N
To find the area of the coin;
Pressure = Force/area
Area = Force/pressure
Substituting into the equation, we have;
Area = 0.1/400
Area = 0.00025 m²