PLEASE HELP !!

Elements in period 2 on the periodic table all have blank
electron shells.

Answers

Answer 1

Answer:

Two orbitals for their electrons and six in the 2p subshell

Explanation:

Hope this helps :)


Related Questions

what is aerobic activities

Answers

Answer:

Aerobic exercise is any type of cardiovascular conditioning. It can include activities like brisk walking, swimming, running, or cycling. You probably know it as “cardio.”

By definition, aerobic exercise means “with oxygen.” Your breathing and heart rate will increase during aerobic activities. Aerobic exercise helps keep your heart, lungs, and circulatory system healthy.

Aerobic exercise differs from anaerobic exercise. Anaerobic exercises, such as weightlifting or sprinting, involve quick bursts of energy. They’re performed at maximum effort for a short time. This is unlike aerobic exercises. You perform aerobic exercises for a sustained period of time.

Explanation:

Aerobic exercise is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. "Aerobic" is defined as "relating to, involving, or requiring free oxygen", and refers to the use of oxygen to adequately meet energy demands during exercise via aerobic metabolism

Does the mass of the objects you are charging influence the amount of electric force created in an electric field?

Answers

Explanation:

Both gravitational and electric forces decrease with the square of the distance between the objects, and both forces act along a line between them. In Coulomb's law, however, the magnitude and sign of the electric force are determined by the electric charge, rather than the mass, of an object.

1. Why are the outer planets called “gas planets?”

Answers

Answer:

They are also called the gas planets because they consist mainly of hydrogen, or the giant planets because of their size. These planets usually have complicated system of many moons and often even rings of ice and/or dust. There are four Jovian planets in the Solar System: Jupiter, Saturn, Uranus and Neptune.

Answer:

They are also called the gas planets because they consist mainly of hydrogen, or the giant planets because of their size. These planets usually have complicated system of many moons and often even rings of ice and/or dust. There are four Jovian planets in the Solar System: Jupiter, Saturn, Uranus and Neptune.

Explanation:

i hope this helps :)

The difference between a Scalar quantity and a Vector quantity?

Answers

Answer:

A quantity that has magnitude but no particular direction is described as scalar. A quantity that has magnitude and acts in a particular direction is described as vector.

pls help me i will name brainliest

Answers

Answer:

a for the first one b for the second

Agreed when looking at the law it will end up with a for firs answer and b for the second

Anyone knows this? Please answer... Spam will be reported.

Answers

Answer:

The correct option is;

The assertion is correct, but reason wrong

Explanation:

The question is with regards to the relationship between work, energy, power, and velocity

The mass of each of the persons running up the staircase = Different

The time it takes each person to run up the stairs = Equal time

Let, 'm₁' and 'm₂' represent the mass of each of the persons that ran up the stairs and m₁ > m₂

Let 't' represent the equal time it takes then to run up the stairs

Let 'h' represent the height of the stairs

The energy, 'E', it takes to run up the stairs is equal to the potential energy, P.E., obtained at the top of the stairs

P.E. = m·g·h

Where;

m = The mass of the person at an elevated height

g = The acceleration due to gravity = Constant

h = The height reached above ground level

Given that the height reached is the same for both of the persons, we have

For m₁, P.E.₁ = m₁·g·h and for m₂, P.E.₂ = m₂·g·h

Therefore, where, m₁ > m₂, we have;

P.E.₁ > P.E.₂

∴ E₁ > E₂

Power, 'P', is the rate at which energy is expended

∴ Power, P = E/t

∴ P₁ = E₁/t  > P₂ = E₂/t

Therefore, the person with the greater mass, 'm₁', uses more power than the person of mass 'm₂', in running up the stairs

Therefore, the assertion is correct

The average velocity, vₐ = (Total distance traveled, d)/(Total time taken, t)

Given that the distance, 'd', covered in running up the stairs by both persons is the same, and the time it takes them to complete the distance, 't', is also the same, we have;

The average velocity of the person with the greater mass m₁ is the same as the average velocity of the person with mass, m₂

Therefore, the reason is wrong

The answer is that the assertion is correct, but reason wrong

A toy remote car drives in a circle. It makes 2 revolutions in 20 seconds. What is the period of the object?​

Answers

Answer:

T = 10 seconds

Explanation:

Given that,

A remote car makes 2 revolutions in 20 seconds.

We need to find the period of the object.

It means, it will make [tex]\dfrac{2}{20}=0.1\ \text{revolutions/second}[/tex] .

lt T be the period of the object. So,

[tex]T=\dfrac{1}{0.1}\\\\T=10\ s[/tex]

It will take 10 seconds for one revolution.

A scientist heats a red powder. Upon heating, a liquid and a gas form.
Which type of substance is the red powder?
O A. anion
B. an isotope
O c. an element
O D. a compound

Answers

Answer:

Compound

Explanation:

A lift that weighs 300 N moves a man with a weight of 950 N upwards by 12 m. How much work is done to move the lift this height?

Answers

Work done formula - work done(J) = Force (N) x Distance (m)
300N + 950N = 1250N
1250N x 12m = 15000J
Answer = 15000J of work is done.

The total work done to move the lift to this height if, A lift that weighs 300 N moves a man with a weight of 950 N upwards by 12 m, is 15000 Joules.

What is work done?

When an object is moved over a distance by an external force, at least a portion of that force must be applied in the direction of the displacement. This is known as work in physics.

Given:

A lift that weighs 300 N moves a man with a weight of 950 N upwards by 12 m,

Calculate the total force as shown below,

Total force = Lift weight + man weight

Total force = 300 + 950

Total force = 1250 N

Calculate the work done as shown below,

The work done = Total force × displacement by total force

The work done = 1250 × 12

The work done = 15000 Joules

Thus, the total work done is 15000 joules.

To know more about work done:

https://brainly.com/question/29762840

#SPJ2

Example 4:
Find the index of refraction for diamond if the speed of light in diamond is 1.24 x 10m/s
Use the proper FORMAT

Answers

Answer:

Given speed of light in diamond =1.24*10m/s

speed of light (c) =3*10^8m/s

refractive index of diamond =3*10^8/1.24*10=2.41*10^7m/s

2. A compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly

higher than the air temperature outside the canister. When weight is removed from the lid, the gas

expands to lift it. For this expansion to be as nearly adiabatic as possible, which condition should be met?

Answers

Answer:

Heat supplied should be equal to zero.

Explanation:

Given that a compressed gas is held inside a canister with a moveable lid. The temperature of the gas is significantly higher than the air temperature outside the canister. When weight is removed from the lid, the gas

expands to lift it.

For this expansion to be as nearly adiabatic as possible, one of the conditions that should be met is that there should be no supply of thermal or heat energy to the system.

According to first law of thermodynamics:

Change in internal energy = heat supply + work done by the system

If heat supplied = 0

Then, nothing is constant.

The internal energy = work done by the system.

Therefore, no heat should be supplied to the system.

Anita rides a bicycle to market 60km from her house in 3.5 hours. What is Anita’s

speed?​

Answers

Antias speed is about 17.142 km per hour.
60 divided by 3.5. The km divided by the hour gives the km per hour. Hope that helped :)

7. Roughly how much did the cost of PV solar panels decrease between 2008 and 2015?
40%
80%
60%
20%
US 0

Answers

Well isnt there an article attached or something? But from research I got around 60%

Question 19 of 20
Planets A and B have the same size, mass, and direction of travel, but planet
A is traveling through space at half the speed of planet B. Which statement
correctly explains the weight you would experience on each planet?
A. You would weigh less on planet B because it is traveling twice as
fast as planet A.
B. You would weigh the same on both planets because your mass
would adjust depending on the planet's speed.
O C. You would weigh more on planet B because it is traveling twice as
fast as planet A.
D. You would weigh the same on both planets because their masses
and the distance to their centers of gravity are the same.
SUBMIT

Answers

Answer:

D. You would weigh the same on both planets because their masses

and the distance to their centers of gravity are the same.

Explanation:

The above statement is true due to the fact that, the weight and masses of the individual are same in direct comparison with the distance to their center of gravity. If the weight and masses are not same, then there would have been a significant difference between the two planet.

1. What is the velocity of an 250-kg that has 6,250 J of energy?


Please help

Answers

Explanation:

KE = 1/2mv^2

6,250 J =1/2(250kg) v ^2

6250 J = 125kgv^2

125kg. 125kg

v =

[tex] \sqrt{50} [/tex]

A pressure cooker has a mass of 1.5 kg and temperature of 30°C. The specific heat
capacity of the alloy from which the pressure cooker is made up of is 1000/kg
What will be its temperature when 7.5 *10') of heat is supplied to it? ​

Answers

Answer:

hjd

Explanation:

Explain the difference between mass and weight. Also, what happens to your mass and your weight if you were to travel to the moon? Why?

PLEASE HURRY!!

Answers

Weight can be explained as the force with which the gravity pulls an object. Your weight will not be the same in all planets. In moon, you will weigh far lesser than how much you weigh on the earth. However, in earth and in the moon, your mass will remain the same.

Calculate the volume of this regular solid.

A cone 4.5 centimeters high with a radius of 3 centimeters. Label B is pointing to the circular base of the cone.

What is the volume of the cone?

Use the button on your calculator to complete this problem.

Round at the end to the nearest hundredth.

Answers

Answer:

42.41

Explanation:

ANSWER QUICK PLEASE!!! (WORTH 15 POINTS!)

Kellie is hopping on one foot. Kellie has a mass of 650
newtons and her foot has an area of 0.10 m2.
How much pressure is exerted by her foot on the ground
with each hop?

Answers

Answer:

650 N / 0.10 m2 = 6500 Pa

Explanation:

The pressure that could be exerted on the ground with each top should be 6,500 Pa

Given that,

The mass is 650 newtons.The area should be 0.10m^2

We need to determine the pressure.

So, the following formula should be used.

[tex]= \frac{Mass}{area}\\\\= \frac{650}{0.10} \\\\[/tex]

= 6,500 Pa

Therefore we can conclude that the pressure that could be exerted on the ground with each top should be 6,500 Pa.

Learn more about the pressure here: brainly.com/question/23358029

Displacement a combination of

Answers

Answer:

Displacement a combination of distance

Explanation:

I'm not sure eh

A skier skies down a slope with an average speed of 50 km/s. How far does the skier travel in 5 minutes?

Answers

Answer:

15000000 m

Explanation:

From the question,

Speed (S) = Distance(d)/Time(t)

S = d/t....................... Equation 1

Make d the subject of the equation

d = St..................... Equation 2

Given: S = 50 km/s = 50000 m/s, t = 5 minutes = 5*60 seconds = 300 seconds

Substitute these values into equation 2

d = 50000(300)

d = 15000000 m

Hence the skier travels 15000000 m

What happens to the current in the other two lamps
if one lamp in a three-lamp parallel circuit burns out?

Answers

Answer:

If one of the filaments burns out, the resistance and the potential difference across the other lamps will not change; therefore, their currents will remain the same.

Explanation:

Answer:

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What came first, a chicken or an egg​

Answers

Answer:

a chicken

a chicken came first

Answer:

A Chicken

A chicken came first

A protein-digesting enzyme when mixed with starch solution would

Answers

it would produce far as its base and starch is acidic

Answer:

It would produce fat..........

If one soccer ball is rolling to the right at 3 m/s and another soccer ball is rolling left with a speed of 5 m/s, how much momentum is there in this system before they collide with each other? Both have a mass of 1 KG​

Answers

Answer:

Final momentum after a head on collision is -2kgm/

Explanation:

  One ball moves to the right and the other moves opposite  and momentum is a vector quantity so that considering the direction

Initial momenta are        P₁=2x3=6kgm/s        P₂=4x(-2)=-8kgm/s      

Final momentum is the vector sum of P(final)= 6-8= -2 kgm/s


1. If you were the organizer of this dance event, are you favor in moving the date on May? Why
or why not?​

Answers

Answer:

I am in favor of the dance event being in may. Because it is nice weather outside, more people will decide to come and spend their time there. It is also light in the evening in may, meaning that you could have the dance event at any time, and younger people will still feel safe at night, meaning their parents will be more open to lwtting kids go.

What is the man’s weight on Mars where the acceleration due to gravity is 3.7 m/s2?

Answers

Answer:

8.14n in mars

Explanation:

gravitational

if a truck is accelerating at 39 MSS and it crashes into a tree within 45,000 in a force what was the mass of the truck?

Answers

Answer:

Mass of the truck is [tex]1154[/tex] Kg

Explanation:

As we know that

Force is the product of mass and acceleration.

F = m * a

Here acceleration, a [tex]= 39[/tex]  m/s^2

Force, F [tex]= 45000[/tex] Newton

Mass = [tex]\frac{F}{a}[/tex]

Mass

[tex]= \frac{45000}{39} \\= 1154[/tex] Kg

The body weighing 8kg moves in a straight line uniformly accelerated with an acceleration of 3m / s? on a horizontal surface, under the action of force 60N.Find a) What is the friction force acting on the body) The coefficient of friction between the body and the surface where it moves

Answers

Answer:

pls explain this to me

Explanation:

I will not answer it

both answers are here in the picture

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)

Answers

Answer:

Explanation:

According to this site, "The purpose of these curved wingtips is to prevent high air pressure above the airplane from flowing over and under the wings."

Hope this helps!

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