PHYSICS MIDDLE SCHOOL

which section from thr article best explains why wavelength and frequency are dependent on each other

Answers

Answer 1

Answer:

Frequency is inversely proportional to wavelength.

Explanation:

Frequency

Frequency in physics is defined as the total number of waves that pass in the given system.

Wavelength

Wavelength is the distance between two successive crest or two successive trough.

Frequency and wavelength of a particular wave is related with each other. The wavelength decreases as the frequency increases.

In mathematical term:

frequency ∝ $(1)/(wavelength)$

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What does the star release, and in what form do we see it ?

Answers

Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.

In 3-5 sentences, use your own words to explain how electricity gets from power plants to our homes.Use the "RAP" method to answer this question:

Restate the question
Answer the question
Prove your answer citing textual evidence from the course.
Don't forget to proofread your answer.

Answers

Answer:

so your wondering how electricity goes from power plants to your home? well, here's why.The electrical charge goes through high-voltage transmission lines that stretch across the country. It reaches a substation, where the voltage is lowered so it can be sent on smaller power lines. It travels through distribution lines to your neighborhood.

Electricity goes from power plants to our homes through a step-down transformer. This helps the voltage to be lowered because electricity has to have high amounts of voltage to travel. So once it’s been lowered, electricity gets transferred to smaller wires that connect to our outlets.

A 2-kg object is moving horizontally with the speed of 4m/s. How much net force is required to keep the object moving at this speed in this direction?

Answers

Force is only required to CHANGE speed or direction ... not to maintain it.

The net requirement is zero.
(in any direction)

Krista and Blaire are identical twins that were separated at birth. Both of the girls are scared of thunder when they are young. Krista's adoptive parents teach her to deal with her fear by pretending that the thunder is a big drum in an orchestra. Blaire's adoptive parents, on the other hand, teach her to deal with her fear of thunder by thinking about sunny days ahead.Both girls have inherited a fear of thunder. The difference in their way of dealing with this fear, however, can best be explained by differences in their _______.

Answers

Answer: it's environment

Explanation:

An organism's overall behavior is a combination of its heredity and its environment. For example, both Krista and Blaire inherited a fear of thunder. They deal with this fear differently, however, because of differences in their environment.

Answer:

environment

Explanation:

All charged objects create an electric field around them. What two factors determine the strength of two electric fields upon the charged objects creating them?

Answers

-- The product of the magnitudes of the two charges.
-- The distance between the centers of the two charges.

The signs of the charges ... whether their signs are the same
or opposite ... determines the direction of the forces, but not
their magnitude.

A weightlifter lifts a 1400 N barbell 2.5 meters. Calculate the work done during the lift