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yKpoI14uk [10]
3 years ago
12

Why does a dropped feather hit the ground later than a rock dropped at the same time? *

Physics
2 answers:
MissTica3 years ago
7 0
The air resistance on the feather would be the correct answer. 
bekas [8.4K]3 years ago
3 0
C is the answer that you are looking for
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Two point charges, initially 3 cm apart, are moved to a distance of 1 cm apart. By what factor does the resulting electric force
Solnce55 [7]
The answer is B (1/9).
6 0
2 years ago
A rectangular block measures 8cm by 5cm by 4cm, a mass of 1.25kg what is the volume of the block
Burka [1]
To calculate the volume of a rectangular, we have to multiply the value of height, length and width.

8x5x4 = 160 cm ^3
3 0
1 year ago
19. What do vibrations create?<br><br> Wavelengths<br> sound waves<br> energy<br> electricity
OverLord2011 [107]

Answer:

Energy

Explanation:

When an object vibrates, it creates kinetic energy that is transmitted by molecules in the medium. As the vibrating sound wave comes in contact with air particles passes its kinetic energy to nearby molecules. As these energized molecules begin to move, they energize other molecules that repeat the process.

5 0
2 years ago
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A 20-lb force acts to the west while an 80-lb force acts 45° east of north. The magnitu 80 lb 70 lb 067 lb 100 lb
natulia [17]

Answer:

option C

Explanation:

given,

force act on west  = 20 lb

force act at 45° east of north = 80 lb

magnitude of force = ?

∑ F y  =  80 cos 45⁰

    F y =  56.57 lb

magnitude of forces in x- direction

∑ F x = -20 + 80 sin 45⁰

        = 36.57 lb

net force

F = \sqrt{F_x^2+F_y^2}

F = \sqrt{56.57^2+36.57^2}

F = 67.36 lb≅ 67 lb

hence, the correct answer is option C

4 0
3 years ago
Propose an experiment that could be used to demonstrate that friction is a contact force?
vesna_86 [32]
Maybe push or pull an object with a large amount of mass? you are force a (pushing through object) aka making contact. i hope i helped not good with physics :)
3 0
3 years ago
Read 2 more answers
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