Answer:
f = 127.48 Hz
, T = 7.844 1⁻³ s
, Ф = 3.38
, λ = 12.49 m
Explanation:
The general equation for the motion of a wave in a string is
y = A sin (kx -wt + fi)
the expression they give is
y = ym sin (0.503x + 801 t + 3.38
)
the veloicda that accompanies time is
w = 801 rad / s
angular velocity is related to frequency
w = 2π f
f = w / 2π
f = 801 / 2π
f = 127.48 Hz
The period is the inverse of the frequency
T = 1 / f
T = 1 / 127.48
T = 7.844 10⁻³ s
the csntnate of phase fi is the independent term
Ф = 3.38
the wave vector accompanies the position k = 0.503 cm
ka = 2pi /λ
λ = 2 π / k
λ = 2 π / 0.503
λ = 12.49 m
Dont know, fr like i dont even know
Kinetic energy as she hits the water is 3300 joule.
To find the answer, we need to know about the Newton's equation of motion.
<h3>What's the Newton's equation of motion to determine the final velocity?</h3>
- The final velocity is determined as
V²=U²+2aS
- V= final velocity, U= initial velocity, a= acceleration and S= distance
<h3>What's the final velocity of the driver falling from 3.10m with initial velocity of 6.10m/s?</h3>
- Here, a= 9.8m/s², U= 6.10m/s and S= 3.10m
- So, V²= 6.1²+2×9.8×3.10= 98
- V= √98= 10m/s
<h3>What's the kinetic energy of the driver when touches the water?</h3>
Kinetic energy= 1/2×mass×velocity²
= 1/2 × 66 × 10²
= 3300J
Thus, we can conclude that the kinetic energy of the driver is 3300 Joule.
Learn more about the kinetic energy here:
brainly.com/question/25959744
#SPJ4
Fireworks change electrical energy to sound and light energy