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Korvikt [17]
3 years ago
7

How much kinetic energy does a 1500 kg car have if it’s moving at 15 m/s

Physics
1 answer:
Tresset [83]3 years ago
6 0

Answer:

Mass of car m = 1500 kg

velocity v = 15 m/s

kinetic energy = ½ mv2

= ½ x 1500 x (15)2    

= 1687501   kg m2 /s2

  = 168750J

Explanation:

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Required: Frequency  f = ?

Formula: c = λf 

               f = c/λ

               f = 3 x 10⁸ m/s/4.10 x 10⁻⁷ m

               f = 7.32 x 10¹⁴/s  or 732 Thz (Terahertz)
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3 years ago
A 3.00-kg object undergoes an acceleration given by a = (2.00 i + 5.00 j) m/s^2. Find (a) the resultant force acting on the obje
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Answer:

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F= 16.4 N < 68.19º

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Describe a procedure that would increase the potential energy of two magnets if like poles are used. Explain why the energy of t
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How do reflection and refraction of waves affect communication?​
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Answer:

the frequency of this mode of vibration is 138.87 Hz

Explanation:

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The frequency of this mode of vibration is calculated as;

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