Answer:
60 m
Explanation:
Case 1:
v₀ = initial speed = 25 mph = 11.2 m/s
v = final speed = 0 m/s
a = acceleration = ?
d = stopping distance = 15 m
using the kinematics equation
v² = v₀² + 2 a d
0² = 11.2² + 2 a (15)
a = - 4.2 m/s²
Case 2 :
v₀ = initial speed = 50 mph = 22.4 m/s
v = final speed = 0 m/s
a = acceleration = - 4.2 m/s²
d = stopping distance = ?
using the kinematics equation
v² = v₀² + 2 a d
0² = 22.4² + 2 (- 4.2) d
d = 60 m
Northern Australia. hope that helps
As with all wave interactions, you just add the wave's amplitudes together. Resonance occurs when the two waves which meet are of the same frequency, so they add together constructively, making it much larger than either of the independent waves.
Answer:
v = 112.424 km / s
Explanation:
Given:
d = 3.84 x 10 ⁸ m , R = 63 x 10³ m , m earth = 5.97 x 10²⁴ kg , G = 6.67 x 10⁻¹¹ N * m² / kg² , v₁ = 14.8 x 10 ³ m / s
Using the equation
KE + PE = initial KE + PE
¹/₂ * m * v₂² - G * m/ R = ¹/₂ * m * v₁² - G * m/(R+d)
v₂² = v₁² + 2*G * m [ 1/R - 1/(R+d) ]
v₂² = 14.8 x 10 ³ m /s + 2 * 6.67 x 10⁻¹¹ N * m² / kg² * 5.97 x 10²⁴ kg [ 1 / 63 x 10³m - 1 / ( 63 x 10³ + 3.84 x 10⁸ m ) ]
v = √ 1.26 x 10¹⁰ m² / s²
v = 112.424 x 10³ m/s
v = 112.424 km / s
Answer:
I had broken my arm.
Explanation:
I was jumping on these rocks and then I fell and landed on my arm on concrete