In the periodic table of elements, what do all of the elements in group 2 have in common?
A. An atom of each element can hold up to eight electrons in its outer energy level.
B. An atom of each element can hold up to six electrons in its outer energy level.
C. Each element is an alkaline earth metal.
D.Each element is a halogen.
E.Each element is dull, brittle, and breaks easily.
I need help to be able to get into a hard class and this is the last question. PLS HELP. Who ever answers I will name brainliest if correct

Answer:

force*distance=work

Explanation:

force=work/distance

Answer:

for example the studs are made in football player boot because to increase pressure with descrease in area of surface

Answer: Constructive interference

Explanation: Just took the test

Answer:

does

Explanation:

Answer:

-606.73C

Explanation:

According to coulombs law

F = kq1q2/r^2

Substitute the given value

83,506 = 9*10^9(-0.198)q2/(3004)^2

83,506 =  -1.242*10^9q2/9,024,016

-1.242*10^9q2 = 7.54*10^11

q2 = -7.54*10^11/1.242*10^9

q2 = -606.73C

hence the magnitude of the other charge is -606.73C

Answer:

time

Explanation:

Answer:

hour measure time so their for it is time

Answer:

a. distance = s x t

Explanation:

The equation we know for speed is speed = distance/time, shortened to s = d/t

If you want to find the distance, you'd rearrange the formula to make d the subject. To isolate d, multiply by t on both sides (since it's being divided on the right. This leads to

s x t = d, with d isolated on the right side.

Therefore, to find the distance an object travelled you'd use a. distance = s x t

Answer:

[tex]T_f=7.38^{\circ}[/tex]

Explanation:

Given that,

Mass, m = 5 kg

Initial temperature of water, [tex]T_i=5^{\circ} C[/tex]

Heat transferred, Q = 50 kJ = 50,000 J

The specific heat capacity of water is 4200 J/kg°C

We need to find the final temperature of the water. The heat transferred in the process is given by :

[tex]Q=mc\Delta T\\\\Q=mc(T_f-T_i)\\\\\dfrac{Q}{mc}+T_i=T_f\\\\T_f=\dfrac{50000}{5\times 4200}+5\\\\T_f=7.38^{\circ}[/tex]

So, the final temperature of water is [tex]7.38^{\circ}[/tex].

Answer:

my favourite song is hym to the sea. That song reminds me of the innocent people who lost their lives in titanic a century ago. If I was the writer of that song ,i would not change the title of that song because I can feel the sound of ocean when I listen to that song.

Answer:

2500 Newtons

Explanation:

If force equals the mass × acceleration then all should be quite simple

25kg is the mass of your car

100 m/s/s is the acceleration of you car

25kg • 100m/s/s = 2500 Newtons

Answer:

[tex]\boxed {\boxed {\sf 2500 \ Newtons }}[/tex]

Explanation:

The formula for force is the product of mass and acceleration.

[tex]F=m*a[/tex]

The mass of the car is 25 kilograms and the acceleration is 100 meters per square second. So,

[tex]m= 25 \ kg \\a= 100 \ m/s^2[/tex]

Substitute the values into the formula.

[tex]F= 25 \ kg * 100 \ m/s^2[/tex]

Multiply.

[tex]F= 2500 \ kg*m/s^2[/tex]

[tex]F= 2500 \ N[/tex]

The force of the car is 2500 Newtons.

Answer:

because it helps to neutralize acid in our body.

Answer:

C. The net force acting on the object

Explanation:

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

Answer:

the impulse and change in momentum of the football is 18.83 N/s.

Explanation:

Given;

applied force, F = 420 N

time of force action, t = 22.3 s

The impulse and change in momentum of the football is calculated as;

J = ΔP = [tex]\frac{F}{t}[/tex]

where;

J is the impulse

ΔP is the change in momentum

J = ΔP = [tex]\frac{F}{t}= \frac{420}{22.3} = 18.83 \ N/s[/tex]

Therefore, the impulse and change in momentum of the football is 18.83 N/s.

Answer:

okay

Explanation:

but what is the question here?

Answer:

The President may veto bills Congress passes, but Congress may also override a veto by a two-thirds vote in both the Senate and the House of Representatives. Article I of the Constitution enumerates the powers of Congress and the specific areas in which it may legislate.

so its eaither      A or C hope that helped sorry if a m wrong

Explanation:

The velocity at the bottom : v = 8.85 m/s

Given

height of the hill = 4 m

Required

The velocity at the bottom

Solution

The law of conservation energy :

ME₁=ME₂

(PE+KE)₁ = (PE+KE)₂

initially at rest⇒vo=0⇒KE₁=0

At the bottom⇒h=0⇒PE₂=0

So the equation becomes :

PE₁=KE₂

mgh=1/2.mv²

gh = 1/2v²

[tex]\tt v=\sqrt{2gh}[/tex]

v = √2x9.8x4

v = 8.85 m/s

Answer:

A mousetrap makes use of a simple machine called a lever.

Explanation:

In a second-class lever the effort force is at the other end, with the load in the middle. In a third-class lever, the load is at the end and the effort force is between the fulcrum and the load. When you set the mousetrap, you are using a second-class lever. Sorry if I get this wrong. I am in 5th grade! ♥

Answer:

2.92 m

Explanation:

As we know, frequency × Wavelength = Speed of light

so here frequency of 102.7 MHz can be written as 102.7× 10⁶ Hz..

So Lambda (wavelength) = 3×10⁸/ 102.7 × 10⁶ which gives 2.92 metres or 2.92 × 10¹⁰ Å

Answer:

For liquid at room temperature and pressure, the value of specific heat capacity (Cp) is approximately 4.2 J/g°C.

Explanation: This implies that it takes 4.2 joules of energy to raise 1 gram of water by 1 degree Celsius. This value for Cp is actually quite large. This (1 cal/g.

Answer:

SPECIALISED CONNECTIVE TISSUES

dense regular connective tissue which is found in tendons and ligaments, and is shown below. ...

cartilage - (see the topic on bone and cartilage)

adipose tissue (see adipose cells)

haemopoietic tissue (bone marrow, lymphoid tissue)

blood (see the topic on blood)

Explanation:

hope you like my ans

Answer: Types of Connective Tissue

Cartilage. Cartilage is a type of supporting connective tissue.

ex:Hyaline cartilage, Hyaline cartilage, Elastic cartilage

Bone. Bone is another type of supporting connective tissue.

ex; Spongy bone, Compact bone

Adipose. Adipose is another type of supporting connective tissue that provides cushions and stores excess energy and fat.

Blood.

ex;Lymph

Hemapoetic/Lymphatic.

Elastic.

Fibrous

Answer:

g = 1.25m/s²

Explanation:

Given the following data;

Mass = 5kg

Height = 6m

Gravitational potential energy = 24J

To find the acceleration due to gravity;

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

[tex] P.E = mgh[/tex]

Where,

P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

GPE = mgh

Substituting into the equation, we have;

24 = 5*6*g

24 = 30g

g = 30/24

g = 1.25m/s²

Therefore, the acceleration due to gravity on Planet X is 1.25m/s².

Answer:

g=0.8m/s^2

Explanation:

M=5kg

h=6m

GPE=24J

GPE=Mgh

g=GPE/Mh

g=24J/(5kg)(6m)=0.8

g=0.8m/s^2

Answer:

The end that faces the north is called the north-seeking pole, or north pole, of the magnet. The other end is called the south pole. When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another.

Explanation:

I hope this helps and pls mark me brainliest :)

Answer:

my cousin got that and i would say that some challenges with adhd/add is behavioral issues, meaning they dont pay attention and some people with adhd can get depressed or have anxiety also   Low self-esteem.

Poor grades.

also adhd is a disability

Answer:

32,400 seconds

Explanation:

675 (distance) / 75 mph = 9 hours of driving.

9 hours x 60 minutes = 540 minutes.

540 minutes x 60 seconds = 32,400 seconds

Answer:

mass is 5 kg

Explanation:

F=m/a

M=f/a

F=5000

a=1000

5000/1000=5

Answer:

See the answers below.

Explanation:

The cost of energy can be calculated by multiplying each given value, a dimensional analysis must be taken into account in order to calculate the total value of the cost in Rs.

[tex]Cost=0.350[kW]*12[\frac{hr}{1day}]*30[days]*4.5[\frac{Rs}{kW*hr} ]=567[Rs][/tex]

The fuse can be calculated by knowing the amperage.

[tex]P=V*I[/tex]

where:

P = power = 350 [W]

V = voltage = 240 [V]

I = amperage [amp]

Now clearing I from the equation above:

[tex]I=P/V\\I=350/240\\I=1.458[amp][/tex]

The fuse should be larger than the current of the circuit, i.e. about 2 [amp]

Answer:   Eat only when you're truly hungry instead of when you are tired, anxious, or feeling an emotion besides hunger.

Plan meals ahead of time to ensure that you eat a healthy well-balanced meal.

Keep more fruits, low-fat dairy products (low-fat milk and low-fat yogurt), vegetables, and whole-grain foods at home and at work.

Explanation:

Answer:

I know that some foods have a lot of sugar. I read online that I don’t need any more than 25 grams of added sugar a day. One kind of pop that I like to drink has 40 grams of sugar per can. I can start by drinking less pop. Next, I learned that some food makers are now putting nutrition keys on the front of their boxes. I love all kinds of breakfast cereal, so I can use the nutrition key to compare brands. Cereal high in fiber is good, but cereal high in sugar isn’t. I’ll be more careful, too, when ordering fast food. Sometimes fast-food places want to change the size of my order from medium to large for a higher price. From now on, I won’t pick the bigger meal. Picking the medium-sized meal should be better for me and can even save me money.

Explanation: Plato

Answer:

Explanation: