Waves superimpose. You'll get what is called a complex waveform.
Answer:
F = 183.153 N
Explanation:
given,
mass of the toothpick = 0.12 g = 0.00012 kg
initial velocity = 227 m/s
final velocity = 0 m/s
penetration depth = 16 mm = 0.016 m
using the equation of motion
v² - u² = 2 a s
0 - u² = 2 a s
- 221² = 2 × a × 0.016
a = 1526281.25 m/s²
Force is equal to
F = m a
= 0.00012 × 1526281.25
F = 183.153 N
The answer is 1,250 W.
Solution:
To use the power rule P = VI, we need to know both the current I flowing through the resistor, and the voltage V across the resistor. But by substituting Ohm’s law I = V/R, we can also express the power rule equation P = VI as
P = R (V/R)^2 = R V^2 / R^2 = V^2 / R
We can now substitute the values for the resistance and voltage into the equation to get the power rating:
P=V^2 / R = (120)^2 / 11.5 = 1252.17 Watts ≈ 1250 Watts