4 years ago

What percentage of energy can be transformed when an energy transformation from potential to kinetic occurs?

Physics

1 answer:

GREYUIT [131]4 years ago

7 0

Answer:

100%

Explanation:

i did the same question

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A hiker walks 9.4 miles at an angle of 60° south of west. Find the west and south components of the walk. Round your answers to

Tanzania [10]

Answer:

The west axis component of walk is, A = 5 miles

The east axis component of walk is, B = 8 miles

Explanation:

Given data,

The displacement of hiker south of west, R = 9.4 miles

The angle formed south of west, Ф = 60°

The vector components along,

the west axis is

A = R cosФ

A = 9.4 x cos 60

A = 4.7 miles

A = 5 miles

The west axis component of walk is, A = 5 miles

the south axis is

B = R sinФ

B = 9.4 sin 60

B = 8.14 miles

B = 8 miles

The east axis component of walk is, B = 8 miles

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3 years ago

Does your BMR increase decrease stay the same or dissapear as you age?

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Answer:

it decreases because of the differences in hormones

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3 years ago

1. Two wires - A and B - with circular cross-sections have identical lengths and are made of the same material. Yet, wire A has

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Answer:

Diameter of wire B is 2 times the diameter of wire A

Explanation:

We have given two wire A and B

They are made up of same material and length of both the wire is sane

So $l_A=l_B$

Let the resistivity of both the wire is $\rho$

It is given that wire A has 4 times the resistance as wire B

So $R_A=4R_B$

So $\frac{\rho l_A}{a_A}=4\frac{\rho l_B}{a_B}$ ( As $l_A=l_B$ )

$\frac{a_A}{a_B}=\frac{1}{4}$

$\frac{d_A^2}{d_B^2}=\frac{1}{4}$

$\frac{d_A}{d_B}=\frac{1}{2}$

$d_B=2d_A$

So diameter of wire B is 2 times the diameter of wire A

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3 years ago

Displacement vectors of 10 m west and 14 m west make a resultant vector that is _____.

Anastaziya [24]

For this case we can write each one of the vectors in the following way:

$v1 = 10 i\\v2 = 14 i$

This means that the x-axis is defined as positive towards the west.

Then, the resulting vector is:

$v1 + v2 = 10i + 14i\\v1 + v2 = 24 i$

Answer:

Displacement vectors of 10 m west and 14 m west make a resultant vector that is 24 m west

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3 years ago

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Alexandra knows that the atomic number of the element potassium, K, is 19. She also knows that one particular isotope of potassi

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I believe the answer is 58 but I’m not sure

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4 years ago