glass is mostly made of silica,which is found in sand. if lead is added to silica to make a crystal vase, the lead is known as the

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Answer 1

Answer: Considering that the silica is a solvent, the lead is called the colloid, which is a substance that added to another substance in the matter in which you described.

Related Questions

A crane has an arm length of 20m inclined at 30deg with the vertical. It carries a container of mass of 1 ton suspended from the top end of the arm. Find the torque produced by the gravitational force on the container about the point where the arm is fixed to the crane. Given: 1 ton = 1000 kg; neglect the weight of the arm. Hint: take the force and perpendicular distance from the point where the arm is fixed to the crane. Note: Express your answer in whole number. No unit is required for the final answer. Set your calculator in radians.
Atoms form two types of bonds. Which describes these bonds? A. In a covalent bond, valence electrons are shared; in an ionic bond, valence electrons are transferred. B. In a covalent bond, valence electrons are transferred; in an ionic bond, valence electrons are shared. C. In a covalent bond, outer electron orbitals are shared; in an ionic bond, outer electron orbitals are transferred. D. In a covalent bond, outer electron orbitals are transferred; in an ionic bond, outer electron orbitals are shared.
What is a possible diameter for a typical neutron star?a. 2 km b. 20 km c. 200 km d. 2,000 km
Which of the following is an acceptable description of the frequency of a transverse wave?
The ozone layer _____. is part of the troposphere is used to send radio signals protects the earth from UV radiation is made of charged ions and free electrons

The amoeba is a protozoan that moves with _____. flagella
cilia
pseudopodia
none of the above

Answers

The amoeba is a protozoan that moves with the pseudopodia. Pseudopodia is known as the false foot. Thus, the correct option is C.

What is Pseudopodia?

A pseudopod or pseudopodia is a temporary arm-like projection of a eukaryotic cell membrane such as algae that is emerged in the direction of movement of the organism. These are filled with cytoplasm. Pseudopodia primarily consist of the actin filaments and may also contain microtubules and other intermediate filaments.

Pseudopodia are responsible for the amoeboid movement, which includes sliding or crawling-like form of locomotion. This motion is visible in amoeba. The formation of cytoplasmic projections, or pseudopodia, on the cell surface, pulling the cell along in the direction of food, is a characteristic of the microscopic unicellular protozoans known as amoeba.

Therefore, the correct option is C.

Learn more about Amoeba here:

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The amoeba is a protozoan that moves with pseudopodia.

Answer: Pseudopodia

how can the temperature of a substance remain the same even if the substance is absorbing thermal engergy

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Temperature remains constant despite the application of thermal energy because phase change does not occur within the substance. To put it simply, here’s an example: You are drinking an orange juice outside and you decided to grab some ice to cool your juice. The mixture then turns into half ice and half juice with a temperature of exactly 0 degrees. But as you hold your glass, the ice begins to melt but the contents of the glass don’t change temperature. This happens because the thermal energy going into the glass come from the gas outside of the air which is the reason why the ice is melting causing the mixture not to warm up but do the opposite.

Which of these statements about resistance is true? Choose the best answer.A. The greater the resistance, the easier it is for electricity to flow
B. The greater the resistance, the less thermal energy is produce.
C. The greater the resistance, the more electrical energy is produced.
D. The greater the resistance, the more electrical energy is produced.

Answers

'C' and 'D' are the same statement, and none of the 3 choices
is good.

Electrical energy is produced in a generator, a solar panel, or
a battery, not in things with resistance.

From the generator or battery, current flows through a circuit of
one or more components.

The greater the resistance of a component, the more energy is
LOST as the current flows through it. The component dissipates
the energy in the form of heat.

This question is not worded in the best possible manner, nor is it specific enough. I also notice that C and D are duplicates.
The answer is B.

A is not true because regarding Ohm's law, $V = IR$ , where V=voltage, I=current, and R=resistance. If we hold Voltage as a constant, (which should be mentioned in the question if it was any good) than we can easily notice that $(V)/(R) = I$ , where I represents current. The larger $I$ is, the easier for electricity to flow. Clearly as resistance increases, current decreases, therefore A is not true.

B is true because of the same reason C (and D) is not true: the greater the resistance, the more power it creates. Again, holding Voltage, or V, as constant, the equation for finding the power (electrical power/energy) of a system is $(V^2)/(R) = P$ . We can notice here again that the greater R is, the less P is. The larger P is, the more energy is dissipated by the circuit. Therefore, since R is getting larger, P is getting smaller, and the amount of heat dissipated becomes less with R's increase.

C and D are not true because of what I explained in B, P gets smaller with R's increase.

Which is larger an atom or a molecule

Answers

MOLECULE;
For example, a hydrogen atom forms one bond, an oxygen atom forms two, and carbon forms four bonds. Look at that molecule of water again - each hydrogen has one bond, and the oxygen in the middle has two bonds. Molecules can be much bigger.

A body oscillates with simple harmonic motion along the x-axis. Its displacement varies with time according to the equation x = 0.5 sin (pt+p/3). The acceleration (in m/s2) of the body at t = 1.0 s is approximatelya. 3.5
b. 49
c. 14
d. 43
e. 4.3

Answers

I'll tell you how I look at this, although I may be missing something important.

Position = x(t) = 0.5 sin(pt + p/3)

Speed = position' = x'(t) = 0.5 p cos(pt + p/3)

Acceleration = speed' = position ' ' = x ' '(t) = -0.5 p² sin(pt + p/3)

At (t = 1.0),

x ' '(t) = -0.5 p² sin( 4/3 p )

In order to evaluate this, don't I still have to know what 'p' is ? ?

I don't think it can be evaluated with the information given in the question.

This exists in the space surrounding a charged particle and exerts a force on other charged particles.

Answers

Gravitational field exists in the space surrounding a charged particle and exerts a force on other charged particles. Gravitational waves are ripples of waves travelling outward from the source. The more massive the orbit of two bodies, the more it emits gravitational wave. And everything around it that is near within the wave experiences a ‘pull’ toward the orbiting bodies.

Answer:

Nope,(not expert certified)

Electrical Field is the correct answer.

Explanation:

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