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Ugo [173]
3 years ago
14

Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio waves are transmitted to Earth

from satellites. How is this possible?
A) Radio waves are electromagnetic waves.
B) Satellites are located within our atmosphere.
C) Radio waves are very high energy mechanical waves.
D) Radio waves are changed to gamma rays for transmission.
Physics
2 answers:
dlinn [17]3 years ago
8 0

The correct answer is A, Radio Waves are electromagnetic waves.

Arlecino [84]3 years ago
4 0
Radio waves<span> are a kind of </span>electromagnetic<span> wave. 

The answer is A.

Hope this helps,

kwrob</span>
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The acceleration of a baseball after it is hit by a bat depends on the mass of the ball and the net force on the
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Answer:

B. Newton's second law of motion

Explanation:

Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.

Mathematically, it is given by the formula;

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Making acceleration the subject of formula, we have;

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In this scenario, the acceleration of a baseball after it is hit by a bat depends on the mass of the ball and the net force on the ball. Thus, this example best illustrates Newton's second law of motion.

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3 years ago
What is the magnitude of the Box's Acceleration?​
mojhsa [17]

The Box's Acceleration : g sin θ

<h3>Further explanation  </h3>

Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object  

∑F = m. a  

F = force, N  

m = mass = kg  

a = acceleration due to gravity, m / s²  

We plot the forces acting on the block (picture attached) according to the y-axis and the x-axis.

Because the motion of the block is in the same direction as the x-axis, ignoring the friction force with the inclined plane, then

\tt \sum F_x=m.a\\\\W.sin\theta=m.a\\\\mgsin\theta=m.a\\\\a=gsin\thet\theta

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I need help on this question!
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Explanation:

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A 4 kg block is pulled with 4.1 N of force to the right. The block experiences 1.0 N of
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The dimensions of a block that weighs 30 N are 0.23 mx 0.12 mx 0.075 m.
pishuonlain [190]

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