Answer:
25.9 m/s
Explanation:
mass of ball, m = 0.145 kg
initial velocity, u = + 32 m/s
It bounce back with the velocity but in opposite direction so final velocity,
v = - v
Impulse, I = - 8.4 Ns
Impulse is defined as the change in momentum
I = m v - mu = m (v - u)
- 8.4 = 0.145 x (- v - 3 2)
- 57.9 = - v - 32
v = 57.9 - 32 = 25.9 m/s
Thus, the final speed of the ball is 25.9 m/s
The wavelength is the so-called "fundamental" wavelength, or the "first mode." Thus, the wavelength of the string's vibration is defined by the supports, and has nothing whatsoever to do with mass or elasticity.
Answer:
idk, idk cause i'm steppin on my toes and i can't stop i make flips ou of my flops
Explanation:
Answer:
B.
Explanation:
When equal forces are exerted onto eachother, they are exerting equal pressure since they are stationary.