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3 years ago

Help ill give you brainliest !!!

Physics

1 answer:

puteri [66]3 years ago

5 0

Answer:

1. B

2. A

3. C

4. B

5. A

6. Muscular strength is different than muscular endurance because of the fact that muscular strength is the amount of force that can be exerted in one instance. Muscular endurance is how long that you can exert that force without being completely exhausted.

7. Some benefits to strength training is the increase in muscular endurance. There is also the benefit of better muscular strength.

Explanation:

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What is center of mass?

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“a point representing the mean position of the matter in a body or system.”

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3 years ago

In the diagram, the Sun, Earth, and Moon are in perfect alignment. Which two conclusions can be drawn based on the diagram?

AysviL [449]

Answer:

I know one answer is an observer on earth sees a lunar eclipse

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3 years ago

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What are the four types of musical instruments and what are the physical behind each type of musical instrument

pishuonlain [190]

Answer:

The four types of musical instruments are percussion, woodwind, brass, and strings.

Explanation:

Percussion instruments include drums, triangle, cymbals, and xylophones. There are more instruments than what i've mentioned though. Percussion instruments often produce the beat of songs.

Woodwind instruments include clarinets, oboe, flute, and saxophone. Woodwind instruments often produce the harmony of songs and, occasionally, the melody.

Brass instruments include trumpet, trombone, french horn, and tuba. Brass instruments often produce the harmony of songs, the trumpet produces the melody a lot though.

String instruments include guitars, violins, cello, bass, ukulele, and banjo. String instruments produce both the harmony and the melody. These instruments often produce really beautiful music, in my opinion.

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3 years ago

An ac generator provides emf to a resistive load in a remote factory over a two-cable transmission line. At the factory a step-

Nataliya [291]

Answer:

a) 1.875 volts

b) 5.86 W

Explanation:

Given data:

transmission line resistance = 0.30/cable

power of the generator = 250 kW

if Vt = 80 kV

a) Determine the decrease V along the transmission line

Rms current in cable = P / Vt = 250 / 80 = 3.125 amps

hence the rms voltage drop ( Δrmsvoltage )

Δrmsvoltage = Irms* R = 3.125 * 2 * 0.30 = 1.875 volts

b) Determine the rate Pd at which energy is dissipated in line as thermal energy

Pd = $I^2rms*R$

= 3.125^2 * 2* 0.30 = 5.86 W

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3 years ago

HELP PLEASE- BRAINLY TO FIRST REAL/ CORRECT AWNSER, NO LINKS NOT BOTS

tankabanditka [31]

Answer:

D. in space

because light is an electromagnetic wave that moves faster without a medium.. so, space is the correct answer

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