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3 years ago

What energy is directly dependent upon velocity and mass?

Physics

1 answer:

erastova [34]3 years ago

3 0

Answer:

Kinetic energy

Explanation:

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Why do we close our eyes when we sleep

Ksju [112]

Answer:

because our some of the energy goes from our eyes

explanation;

There are several reasons why it's important to close our eyes while we sleep. Closed eyelids block light, which stimulates the brain to wakefulness. Closing our eyes also protects and lubricates the eyes while we sleep

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3 years ago

A circular loop of radius 0.0400 m is

Alenkinab [10]

Let's see

Find enclosed area of loop

$\\ \rm\dashrightarrow \pi r^2$

$\\ \rm\dashrightarrow 3.14(0.04)^2$

$\\ \rm\dashrightarrow 0.005m^2$

Now

$\\ \rm\dashrightarrow \phi=BAcos\theta$

We need B

$\\ \rm\dashrightarrow 9.59\times 10^{-7}=B(0.005)cos75$

$\\ \rm\dashrightarrow 9.59\times 10^{-7}=0.0046B$

$\\ \rm\dashrightarrow B=2084.78\times 10^{-7}$

$\\ \rm\dashrightarrow B=2.08\times 10^{-4}T$

$\\ \rm\dashrightarrow B=0.208mT$

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2 years ago

Two 2.0cm×2.0cm metal electrodes are spaced 1.0 mm apart and connected by wires to the terminals of a 9.0 v battery. What is the

Fantom [35]

Answer:

The charge on each electrode is

$q=0.354 x10^{-12}$

Explanation:

The charge to find the equation is development

V=9v

$d=1.0 mm\\A=2cm*2cm=0.02m*0.02m\\A=4x10^{-4} \\E_{o} =8.85x10^{-12} (\frac{C^{2} }{N*m^{2} } )$

$q=C*V$

$C=\frac{E_{o}*A }{d} \\C=\frac{8.85x10^{-12} *4x10^{-4} }{0.01}=0.354 \\$

$q=0.354*9v\\q=3.186x10^{-12} C$

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3 years ago

A ballplayer standing at home plate hits a baseball that is caught by another player at the same height above the ground from wh

kvv77 [185]

Answer:

Maximum height reached = 39.39 m

Explanation:

At maximum height

We have equation of motion v² = u² + 2as

Consider the vertical motion of baseball,

Initial velocity, u = 32.1sin60=27.8 m/s

Final velocity, v = 0 m/s

Acceleration, a = -9.81 m/s²

Substituting

v² = u² + 2as

0 = 27.8² + 2 x (-9.81) x s

s = 39.39 m

Maximum height reached = 39.39 m

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3 years ago

How does the DNA differ for different living things

Slav-nsk [51]

DNA holds or genes, traits and we all have different amounts of chromosomes and that makes us different from other animals. A fishes genes would be different from ours because there DNA is different they have a different set of genes and chromosomes. Hop that Helped. we are genetically different.

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3 years ago