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Dima020 [189]
3 years ago
10

Which observational tool helped astronomers Arno Penzias and Robert Wilson discover the existence of the cosmic microwave backgr

ound (CMB)?
Physics
1 answer:
Softa [21]3 years ago
4 0
<span>In 1964, while experimenting with the Holmdel Horn Antenna, which was used as a radio telescope, Penzias and Wilson accidentally discovered the microwave background radiation that exists universally. The Holmdel Horn Antenna was used to support the "Big Bang Theory" as opposed to the "Steady State Theory".</span>
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Which of the following statements about the resistsance of a wire is correct? Select THREE answers.
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What unit is used for the value of G in Newton's Law of Universal<br> Gravitation?<br> *
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In SI units, its value is approximately 6.674×10−11 m3⋅kg−1⋅s−2. The modern notation of Newton's law involving G was introduced in the 1890s by C. V. Boys. The first implicit measurement with an accuracy within about 1% is attributed to Henry Cavendish in a 1798 experiment.

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3 years ago
What effect does the removal of vegetation have on soil ?
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3 years ago
When force is applied to a breaker bar the torque can be calculated by multiplying the length of the lever by the?
Nimfa-mama [501]

When a force applied to a breaker bar the torque can be calculated by multiplying the<u> length of the lever</u> by the tangential component of force on the lever.

<h3>What is torque?</h3>

Torque is the <u>rotating equivalent</u> of force in physics and mechanics. Depending on the subject of study, it is also known as the moment, moment of force, rotating force, or turning effect. It illustrates how a force can cause a change in the body's rotational motion.

Torque is given by the formula :

                          α = r x F ( bold letters represent vector quantities)

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To learn more about torque:

brainly.com/question/14970645

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