3 years ago

Alguien me ayuda con decibeles?

Physics

1 answer:

Iteru [2.4K]3 years ago

7 0

Answer:

Por supuesto.

Explanation:

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PLZZZ HELPP ASAP!!!!

Tamiku [17]

Answer:

1.68N

Explanation:

W=F*d

KE=1/2*M*V^2

M=32kg

V= 5.1m/s

D=50m

0.5(32)(5.1^2)= 416 J

Initial energy=500 J

final energy= 416 J

lost energy= 500-416

heat lost to friction=84 J

84=F*50

84/50=F*50/50

F=1.68N

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3 years ago

When only ________ acts on an object's mechanical energy is conserved.

murzikaleks [220]

When only ________ acts on an object's mechanical energy is conserved.

<u>Answer</u><u>:</u>

Momentum

8 0

3 years ago

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What option lists the types of electromagnetic waves in order of increasing wavelength?

WITCHER [35]

Answer:

I believe its D visible light, infrared, ultraviolet

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3 years ago

At the equator, the earth’s field is essentially horizontal; near the north pole, it is nearly vertical. In between, the angle v

KengaRu [80]

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3 years ago

A rock is suspended from a string, and it accelerates downward. Which one of the following statements is correct? Group of answe

Tems11 [23]

Answer:

a. The magnitude of the tension in the string is greater than the magnitude of the weight of the rock.

Explanation:

During the motion of the rock while it is in downward motion we can say

$T - mg cos\theta = ma_c$

since it is performing circular motion so we will have its acceleration towards its center

$T = mgcos\theta + ma_c$

$a_c = \frac{v^2}{L}$

$T = mgcos\theta + \frac{mv^2}{L}$

So at the lowest point of the path we can say

$T = mg + \frac{mv^2}{L}$

so correct answer is

a. The magnitude of the tension in the string is greater than the magnitude of the weight of the rock.

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3 years ago