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
Nastasia [14]
3 years ago
10

An unknown element is solid at room temperature, forms a +2 ionic charge, and has 3 energy levels or shells. This element is mos

t likely ________. *
-Magnesium
-Lithium
-Boron
-Aluminum
Physics
1 answer:
quester [9]3 years ago
6 0

Answer:

c

Explanation:

You might be interested in
Which instrument is used to measure liquid volume?
Alecsey [184]

Volumetric cylinders and volumetric flasks

3 0
3 years ago
Read 2 more answers
A stone is catapulted at time t = 0, with an initial velocity of magnitude 19.9 m/s and at an angle of 39.9° above the horizonta
larisa [96]

Answer:

Part a)

x = 15.76 m

Part b)

y = 7.94 m

Part c)

x = 26.16 m

Part d)

y = 7.49 m

Part e)

x = 83.23 m

Part f)

y = -75.6 m

Explanation:

As we know that catapult is projected with speed 19.9 m/s

so here we have

v_x = 19.9 cos39.9

v_x = 15.3 m/s

similarly we have

v_y = 19.9 sin39.9

v_y = 12.76 m/s

Part a)

Horizontal displacement in 1.03 s

x = v_x t

x = (15.3)(1.03)

x = 15.76 m

Part b)

Vertical direction we have

y = v_y t - \frac{1]{2}gt^2

y = (12.76)(1.03) - 4.9(1.03)^2

y = 7.94 m

Part c)

Horizontal displacement in 1.71 s

x = v_x t

x = (15.3)(1.71)

x = 26.16 m

Part d)

Vertical direction we have

y = v_y t - \frac{1]{2}gt^2

y = (12.76)(1.71) - 4.9(1.71)^2

y = 7.49 m

Part e)

Horizontal displacement in 5.44 s

x = v_x t

x = (15.3)(5.44)

x = 83.23 m

Part f)

Vertical direction we have

y = v_y t - \frac{1]{2}gt^2

y = (12.76)(5.44) - 4.9(5.44)^2

y = -75.6 m

6 0
3 years ago
which of the following is the name of the process scientists use to gain knowledge abut the physical world
raketka [301]
The scientific method is the process that scientists use to answer question about the world.
7 0
4 years ago
What is Lorentz law?​
Reika [66]
These two electric and magnetic forces can be related together into one electromagnetic force through the Lorentz force law. This law states that the total force acting on a charged particle due to electric and magnetic fields is equal to the sum of the electric and magnetic forces acting on it.
6 0
4 years ago
How many turns are needed in a solenoid of radius 10 cm and length 20 cm for its self-inductance to be 6.0 H?
MA_775_DIABLO [31]

Answer:

B

Explanation:

5 0
3 years ago
Other questions:
  • Uranium mining is not very disruptive of the land, and therefore nuclear power is much more desirable than coal mining. TRUE FAL
    15·2 answers
  • If 20 beats are produced within one second, which of the following frequencies could possibly be held by two sound waves traveli
    11·2 answers
  • A concert loudspeaker suspended high off the ground emits 35 W of sound power. A small microphone with a 1.0 cm2 area is 50 m fr
    13·1 answer
  • The box as shown above is moving at a constant velocity . True or false
    9·1 answer
  • Copper Pot A copper pot with a mass of 2 kg is sitting at room temperature (20°C). If 200 g of boiling water (100°C) are put in
    8·1 answer
  • 3. View the topographic map of Antarctica. Use latitude and longitude to tell the location of the following sites to the nearest
    14·1 answer
  • Two wires are identical, except that one is aluminum and one is tungsten. the aluminum wire has a resistance of 0.22 ω. what is
    10·1 answer
  • In describing a vector, what must you describe besides the magnitude?
    5·2 answers
  • Làm thế mào để kiểm tra một lục ma sát trược
    6·1 answer
  • Select ALL of the places you might find DNA evidence.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!