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Paul [167]
3 years ago
9

Evaluate (x +y)0 for x= -3 and y=5. 0 1 2 01

Physics
1 answer:
frosja888 [35]3 years ago
8 0

Answer:2.01201

Explanation:

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How do you sound waves transfer energy
Lady bird [3.3K]

In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. In water waves, energy is transferred through the vibration of the water particles.

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8 0
3 years ago
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Study the interaction of the light rays with the mediums. Classify the medium in each image as being transparent or opaque.
Tresset [83]

Answer:

a) transparent

b) transparent

c) opaque

Explanation:

In the first one, the light rays go completely through, so it is transparent.

The second one I'm not too sure about. It is refraction so it's going through a different material, but the fact that it went through makes me say transparent.

Last one, the light rays are reflecting off the surface so it's opaque.

Please feel free to correct me if I'm wrong. This is just my understanding

6 0
3 years ago
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Will a vector at 45 degrees to the horizontal be larger or smaller than its horizontal and vertical components? By how much?
never [62]
Larger. How big depends on the size of the vector. But think about pythagoras theorem to solve for the vector.
8 0
3 years ago
A wheel with radius 0.487 m rotates 5.75 times every second. find the period of this motion.
marin [14]
Calculate the circumference of the circular path of the wheel by the equation,
    C = 2πr
where C is the circumference,
           r is the radius

Substituting the known values,
    C = 2(π)(0.487 m) = 3.06 m

Then, period of the motion will be determined by dividing the number of rotations done,
 
     T = (3.06 m) / (5.75 /s) = 0.53 s

<em>ANSWER: 0.53 s</em>
3 0
3 years ago
Which situation describes a system with decreasing gravitational potential energy?
umka2103 [35]
An example of a system with decreasing gravitational potential energy is a ball in free fall. 

At its initial height h, the ball has a gravitational potential energy equal to
U=mgh
where m is the ball mass and g is the gravitational acceleration. As the ball falls toward the ground, its height h decreases, and so its gravitational potential energy decreases as well, according to the formula 
U=mgh'
where h' is the new height of the ball.
8 0
3 years ago
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