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natulia [17]
3 years ago
6

The head of a rattlesnake can accelerate at 40 m/s2 in striking a victim. If a car could do as well, how long would it take to r

each a speed of 73 km/h from rest?
Physics
1 answer:
kvv77 [185]3 years ago
3 0

Answer:

Time taken will be 0.5069 sec    

Explanation:

Acceleration of the car is given a=40m/sec^2

Let the car starts from the rest so initial velocity of the car u=0m/sec

Final velocity v = 73 km/hr

So 7km/hr=\frac{73\times 5}{18}=20.277m/sec

From first equation of motion v = u+at

So 20.277=0+40\times t

t = 0.5069 sec

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1. Determine the magnitude of two equal but opposite charges if they attract one another with a force of 0.7N when at distance o
adell [148]

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For this exercise we use Coulomb's law

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       q₁ = q₂ = q

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3 years ago
If its wavelength were doubled, its energy would be If its wavelength were doubled, its energy would be 4E. 2E. 12E. 14E.
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The wavelength was doubled, and its energy will be increased by 4 times.

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hence, The wavelength was doubled, and its energy will be increased by 4 times.

<h3>What is Wavelength?</h3>
  • The distance over which a periodic wave's shape repeats is known as the wavelength in physics.
  • It is a property of both traveling waves and standing waves as well as other spatial wave patterns. It is the distance between two successive corresponding locations of the same phase on the wave, such as two nearby crests, troughs, or zero crossings.
  • The spatial frequency is the reciprocal of the wavelength. The Greek letter lambda is frequently used to represent wavelength.
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To learn more about wavelength with the given link

brainly.com/question/13533093

#SPJ4

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