3 years ago

The method of heat transfer by which the sun energy reaches the earth is

Physics

1 answer:

aniked [119]3 years ago

6 0

Answer:

C. Radiation

Explanation:

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Richard walks from his home to his school at a constant speed. it takes him 4 min to travel 100 m. which of the following lines

Sindrei [870]

Since his speed is constant,

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2 years ago

A uniform 1.6-kg rod that is 0.89 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs han

artcher [175]

Answer:

8.27°

Explanation:

To angle difference will be determined by the difference in the displacement of the springs, produced by the weight of the center of mass of the rod.

$d=y_1-y_2=\frac{F_1}{k_1}-\frac{F_2}{k_2}=\frac{0.5mg}{31N/m}-\frac{0.5mg}{63N/m}\\\\d=0.5(1.6kg)(9.8m/s^2)[\frac{1}{31N/m}-\frac{1}{63N/m}]=0.128m$

by a simple trigonometric relation you obtain that the angle:

$sin\theta=\frac{d}{l}=\frac{0.128m}{0.89m}=0.144\\\\\theta=sin^{-1}(0.144)=8.27\°$

hence, the angle between the rod and the horizontal is 8.27°

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2 years ago

PLEASE HELP ASAP!!!!!!!!!!

Marianna [84]

Hey,

I think the answer's are 1,3

Hope this helpss

~Girlygir101~

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2 years ago

What is the name of the part of the wave that is labeled -

tresset_1 [31]

Answer:

amplitude

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2 years ago

A person having a mass of 85 kg sits on the edge of a horizontal rotating platform, 2.2 m from the center of the platform, and h

gulaghasi [49]

The angular momentum of the person is given by:
$L=mvr$
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$L=(85 Kg)(6.6 m/s)(2.2 m)=1234.2 Kg \cdot m^2/s$

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2 years ago