1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Crank
3 years ago
9

Which elements are alkali metals and which are alkaline earth metals

Physics
1 answer:
Irina18 [472]3 years ago
8 0

Answer:

ix chemical elements that comprise Group 2 of the periodic table

Explanation:

Calcium, Magnesium, Barium, Beryllium, Strontium, and Radium are alkaline earth metals.

You might be interested in
Explain how you can work out the
Ne4ueva [31]

Answer:

The speed of light changes as it moves between media. This causes refraction. Angles of refraction can be calculated using known speeds or wavelengths. Beyond the critical angle, light is reflected.

8 0
3 years ago
Give a short introduction to the Cottage and small industry development committee​
I am Lyosha [343]

Answer:

Sign in

Home Business Cottage and Small Industries Development Committee to organize National Industrial Goods and...

BUSINESS

Cottage and Small Industries Development Committee to organize National Industrial Goods and Technology Expo

By Glocal Khabar - 2368 0

National Industrial Goods and Technology Expo- Glocal Khabar

Kathmandu, February 19, 2018: Cottage and Small Industries Development Committee is set to organize the twenty-ninth edition of National Industrial Goods and Technology Expo from March 23, 2018 at Bhrikutimandap, Kathmandu.

The motto of the five-day event is ‘Let’s use home-made products, move ahead towards prosperity.’ The committee has shared that handicrafts, wool and bamboo products, goods made from handmade papers, different types of pickles and Palpali Dhaka would be put on display in the expo.

3 0
3 years ago
Which competition is the “ most important soccer competition in the world “ ?
Ganezh [65]
It would be B. The World Cup

Hope this helps

Have a great day/night
8 0
3 years ago
What happens in the process of gravitational condensation?
Lerok [7]

Answer:

An object decreases in size due to the collision of materials. An object increases in size due to the addition of materials. Gas particles are formed from solar nebula materials.

3 0
3 years ago
An airplane flies between two points on the ground that are 500 km apart. The destination is directly north of the origination o
Ann [662]

Answer:

   θ = 4.78º

with respect to the vertical or 4.78 to the east - north

Explanation:

This is a velocity compound exercise since it is a vector quantity.

The plane takes a direction, the air blows to the west and the result must be to the north, let's use the Pythagorean theorem to find the speed

                  v_fly² = v_nort² + v_air²

                  v_nort² = v_fly² + - v_air²

Let's use trigonometry to find the direction of the plane

        sin θ = v_air / v_fly

        θ = sin⁻¹ (v_air / v_fly)

         

let's calculate

        θ = sin⁻¹ (10/120)

         θ = 4.78º

with respect to the vertical or 4.78 to the north-east

5 0
3 years ago
Other questions:
  • A bus slams on its breaks and goes from 30 km/hr to 15km/hr in 4 seconds. What is its acceleration?
    7·1 answer
  • Which of the following is responsible for the formation of sinkholes F. Eroding soil on Earths’s surface G. Ice that builds up o
    8·1 answer
  • Newton's First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon
    14·2 answers
  • A body is found in the woods and all you have left to analyze are bones and teeth. Explain what isotopes would be helpful to you
    12·1 answer
  • How are magnetic field lines like electric field lines?
    6·2 answers
  • Find the change in the force of gravity between two planets when the distance between them becomes 10 times smaller. g
    7·1 answer
  • If a marathon runner averages 9.50 mi/h, how many minutes does it take him or her to run a 26.22-mi marathon?
    6·1 answer
  • A sensor is used to monitor the performance of a nuclear reactor. The sensor accu-rately reflects the state of the reactor with
    13·1 answer
  • Is this a balanced equation? 6O2+ C6H12O6---&gt; 6 CO2 + 6H2O <br><br> ]
    14·1 answer
  • The picture shows what happens when light shines on a tank of water.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!