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4 years ago

Which ionic compound is used as a building material?

2 answers:

8 0

Magnesium oxide is an ionic compound that can be used as a building material. MO2 is actually a raw material that used in producing cement for building houses, buildings, and other constructions.
Many old structures were made of limestones. Limestone is from Calcium Carbonate (CaCO3) which is an ionic compound and can be used as a building material too.

KonstantinChe [14]4 years ago

6 0

Answer:

B) Limestone

Explanation:

Salt is used to texturize food and limestone is used as a building material.

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A 15.0 cm diameter circular loop of wire is placed with the plane of the loop parallel to the uniform magnetic field between the

velikii [3]

Answer:0.0144 tesla

Explanation:

Magnetic field strength is the same as Magnetomotive force

B= I/2πr

B=magnetic field strength

I=current

r=radius=0.15/2=0.75m

Area=πr2= 1.77m2

torqueT= NIABsin theta

B= T/NIABsin theta

B=0.135/1 * 5.3 * 1.77 *sin90

B=0.0144 tesla

6 0

3 years ago

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solniwko [45]

CAN I PET DAT DOG fj dksl as ldkf fads fadlfkas dfjflasfl dfa

6 0

2 years ago

The graph in the accompanying figure (Figure 1) shows the magnitude of the force exerted by a given spring as a function of the

serious [3.7K]

The elastic potential energy stored in the stretched spring is 1 J.

<h3>What is Hooke's law?</h3>

Hooke's law states that; provided the elastic limit is not exceeded, the extension of the spring is directly proportional to the force on the spring.

Given that;

Force on the spring = 350 Newton

Distance stretched = 7 centimeters or 0.07 m

Hence;

F = ke

k = F/e = 350 Newton/0.07 m = 5000 N/m

Work done in stretching a spring = 1/2ke^2

= 0.5 × 5000 × (2 × 10^-2)^2 =1 J

Learn more about elastic potential energy: brainly.com/question/156316

4 0

2 years ago

A boulder is raised above the ground, so that its potential energy relative to the ground is 200 J. Then it is dropped. Estimate

babymother [125]

Answer:

200 J

Explanation:

In this problem, I assume there is no air resistance, so the system is isolated (=no external forces).

For an isolated system, the total mechanical energy is constant, and it is given by:

$E=KE+PE$

where

KE is the kinetic energy

PE is the potential energy

The kinetic energy is the energy due to the motion of the object, while the potential energy is the energy due to the position of the object relative to the ground.

At the beginning, when the boulder is raised above the ground, its height above the ground is maximum, while its speed is zero; it means that all its mechanical energy is just potential energy, and it is:

$E=PE_{max}=200 J$

As the boulder falls down, its altitude decreases, so its potential energy decreases, while the speed increases, and the kinetic energy increases. Therefore, potential energy is converted into kinetic energy.

Eventually, just before the boulder hits the ground, the height of the object is zero, and the speed is maximum; this means that all the energy has now converted into kinetic energy, and we have

$E=KE_{max}=200 J$