Kinetic energy....
1 answer:
Explanation:
Given parameters:
mass of bullet 1 = 0.0014kg
velocity of bullet 1 = 396m/s
mass of bullet 2 = 7.1 x 10⁷kg
velocity of bullet 2 = 13m/s
Unknown;
Comparing the kinetic energy
Solution:
Kinetic energy is the energy due to the motion of a body.
K.E = m v
bullet 1:
K.E = x 0.0014 x 396
= 109.8J
bullet 2:
K.E = 7.1 x 10⁷ x 13
= 6 x 10⁹J
The second bullet has more kinetic energy than the first one.
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Kinetic energy brainly.com/question/6536722
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Answer:
Velocity = 0.309 m/s
Along negative x axis
Explanation:
A pulse moving to the right along the x axis is represented by the wave function
y(x,t) = 2/ (x - 3t)² + 1
At t =0
y(x,0) = 2/ ((x - 3(0))² + 1)
=2 / (x² + 1)
At t = 1
y(x,t) = 2/ ((x - 3(1))² + 1)
= 2 /(( x - 3)² + 1)
At t = 2
y(x,t) = 2/ ((x - 3(2))² + 1)
= 2 /(( x - 6)² + 1)
For the pulse with expression y(x,t) = 4.5²
The Velocity is
V = 2.7 / 8.73
= 0.309 m/s