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3 years ago

Please help!!!! I will give brainliest if correct!!!

Physics

1 answer:

scZoUnD [109]3 years ago

4 0

Answer:

The density ρ of metal block is 8.92g/cm³

So from the given density table this corresponds to copper which has density of 8.92(g/mL)

Explanation:

Oh yeah, I got the correct unit update,

Now this problem bothers on the density of substances

We know that the density of a substance is expressed as

Density ρ= mass/ volume

Given data

Mass of metal block m= 62.44g

Volume of metal block v= 7 cm³

Hence we can find the density of the metal block by plugging in our data into the expression for density

ρ of metal block = 62.44/7

ρ of metal block = 8.92g/cm³

The block is a copper block

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What is 174HZ and its pitch

Lubov Fominskaja [6]

The lowest recognized solfeggio frequency is 174 Hz, also known as the healing frequency. It has the greatest impact on the body and physical health, rather than spiritual or mental health. People mainly experience pain relief from this frequency, although it also reduces stress.

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3 years ago

If a 54 kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3 s, what average power is generated?

lora16 [44]

Answer:

Power, P = 600 watts

Explanation:

It is given that,

Mass of sprinter, m = 54 kg

Speed, v = 10 m/s

Time taken, t = 3 s

We need to find the average power generated. The work done divided by time taken is called power generated by the sprinter i.e.

$P=\dfrac{W}{t}$

Work done is equal to the change in kinetic energy of the sprinter.

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So, the average power generated by the sprinter is 900 watts. Hence, this is the required solution.

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3 years ago

Albert is on Earth and measures the speed of light from the sun as 3 E8 m/s. He then gets in a spaceship and speed toward the su

Flura [38]

Choice B, 3 E8 m/s because it will stay the same no matter where he is or how fast he's going

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3 years ago

Read 2 more answers

The Grinch is trying to push a 5000-kg sled up the side of Mount Crumpit (whose side make an angle of 60 degrees above the horiz

navik [9.2K]

Answer:

Explanation:

height lost h = 300 sin60

= 259.8 m .

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= 5000 x 9.8 x 259.8

= 1273 x 10⁴ J

Kinetic energy

= 1/2 mv²

= .5 x 5000 x 60²

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there is loss of kinetic energy = 373 x 10⁴ J.

This loss in energy is due to kinetic friction that came into action when the sled slipped downwards.

The lost energy is converted into heat energy or thermal energy.

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4 years ago

Convert milligram to 1 gram

Bond [772]

Answer:

convert 1 milligram to 1 gram:

Explanation:

1 milligram is 0.001 gram.

so... 2 milligram is 0.002

3 milligrams is 0.003

and so on.

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3 years ago