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Archy [21]
3 years ago
15

Can an object form two or more shadows at the same how

Physics
2 answers:
IgorC [24]3 years ago
8 0
Yeah when there are many light sources from different directions
Vlad [161]3 years ago
7 0

Answer:

Yes, it can but there must be two or more than two light source at different angle.

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A 200-foot tall monument is located in the distance. From a window in a building, a person determines that the angle of elevatio
egoroff_w [7]

Answer:

665 ft

Explanation:

Let d be the distance from the person to the monument. Note that d is perpendicular to the monument and would make 2 triangles with the monuments, 1 up and 1 down.

The side length of the up right-triangle knowing the other side is d and the angle of elevation is 13 degrees is

dtan13^0 = 0.231d

Similarly, the side length of the down right-triangle knowing the other side is d and the angle of depression is 4 degrees

dtan4^0 = 0.07d

Since the 2 sides length above make up the 200 foot monument, their total length is

0.231d + 0.07d = 200

0.301 d = 200

d = 200 / 0.301 = 665 ft

7 0
3 years ago
A major contemporary learning view of personality which holds that personality traits result from a
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Answer:

21

Explanation:

21 is x because 211211 1 1 1 1  1aghh

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What is an accurate definition of a heat engine? A. a system that converts mechanical energy into thermal energy B. a system tha
Verizon [17]

Answer:

C

Explanation:

C. a system that converts thermal energy into other useful forms of energy

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3 years ago
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What is the mechanical advantage of a pulley system​
tatuchka [14]

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Pulleys accomplish 2 separate operations throughout the computer controlled additional benefit technologies listed elsewhere here.

Explanation:

  • If indeed the pulley would be connected to that same attachment point, these are named a corrected pendulum or perhaps a change in direction. Its job should be to reverse the trajectory of that same rope pull.  
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What is the half-life of an isotope that decays to 25% of its original activity in 70.8 hours?
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