How will you join three resistances, each of 2 ohm so that the effective resistance is 3 ohm?

Answers

Answer 1

Answer: First I will parallel two of the resistors, creating a net 1 ohm. Then I will series that with the remaining 2-ohm resistor, resulting in 3 ohms.

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Under what conditions can light be modeled like a ray? Like a wave?

Answers

when the aperture or object size is equivalent to the wavelength of light

How do evaporation and condensation relate to heat

Answers

Both of them are phase changes that result from the flow of heat. Evaporation happens when heat is added to a substance. Condensation happens when heat comes out of a substance.

How does Coulomb's law relate to test charges?

Answers

Coulomb's law relate to test charges whenever the positive charge and the negative charge are placed 1 meters apart inside a vacuum made of air. The force of repulsion between the positive and negative charges are around 9.0x10E9 N.

Why do the densities of most substances decrease with an increase in temperature?

Answers

because density is related to activity of particles, the higher the activity level (the faster they're moving, and distance between them) the less dense they are. for example, H2O in a solid the particles are close together with minimum movement and it exists as ice, but when heat is applied the particles become more active and move more decreasing the density becoming liquid water, then when excessive heat is applied the same occurs and it becomes gas steam

Which of the following statements describes an anticyclone?a. It is an area of low pressure.
b. It is an area of high pressure.
c. It has air masses that meet and rise.
d. It moves in the direction of the Earth’s rotation.

Answers

b.
srry for short answer :)

Answer:

b is the appropriate answer

Explanation:

For Most Substances the distance between particles is smallest when the substancea.exists gas
b.exists as a liquid
c.exists as a crystalline solid
d.exists as an amorphous solid

Answers

I am pretty sure that for Most Substances the distance between particles is smallest when the substance c.exists as a crystalline solid. I pick this option because crystalline solid is the most compact substances unlike the others.
It will definitely help you.

Answer:

c.exists as a crystalline solid

Explanation:

Amongst all the three phases, it is solid phase which is the most compact because the atoms within the solids are bound with a very strong force of attraction. But, solids can exist as either crystalline solid or amorphous solid. Between these two type of solids, it is crystalline solids which are very well packed and the inter atomic distance between their two atoms is the least. It is due to the reason that the atoms within a crystalline solid are arranged in proper order in the form of stacks. But, in amorphous solids the atoms are not arranged properly i.e. their arrangement is random which leads to the increased inter atomic distance. Second comes liquid phase, in liquids the inter atomic forces are intermediate between solids and gases. Atoms in a gas are bound with the weakest force of attraction known as van der Waals that is why the distance between the atoms of a gas is the highest.

Other Questions

17. Alyssa just bought a new set of string lights for her bedroom. She decided to use the lights to outline her mirror. The lights are on a series circuit. If Alyssa were to buy more lights so that they can go all around her bedroom, what will happen to following quantities?:a. The resistance of the entire circuit will (increase/decrease).b. The current through each bulb will (increase/decrease).c. The voltage available to each bulb will (increase/decrease).

What is the relationship between a revolution and an orbit?

Sound is a example of what kind of wave

An optical telescope is an instrument that collects and _____.A. focuses light from very small objects B. focuses light from distant objects C. reflects light from distant objects D. stores heat from distant objects