You need to move the decimal point between the six and nine. 6.9 X 10^-4
The velocity of the pitcher at the given mass is 0.1 m/s.
The given parameters:
- <em>Mass of the pitcher, m₁ = 50 kg</em>
- <em>Mass of the baseball, m₂ = 0.15 kg</em>
- <em>Velocity of the ball, u₂ = 35 m/s</em>
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Let the velocity of the pitcher = u₁
Apply the principle of conservation of linear momentum to determine the velocity of the pitcher as shown below;
m₁u₁ = m₂u₂
![u_1 = \frac{m_2 u_2}{m_1} \\\\u_1 = \frac{0.15 \times 35}{50} \\\\u_1 = 0.105 \ m/s\\\\u_1 \approx 0.1 \ m/s](https://tex.z-dn.net/?f=u_1%20%3D%20%5Cfrac%7Bm_2%20u_2%7D%7Bm_1%7D%20%5C%5C%5C%5Cu_1%20%3D%20%5Cfrac%7B0.15%20%5Ctimes%2035%7D%7B50%7D%20%5C%5C%5C%5Cu_1%20%3D%200.105%20%5C%20m%2Fs%5C%5C%5C%5Cu_1%20%5Capprox%200.1%20%5C%20m%2Fs)
Thus, the velocity of the pitcher at the given mass is 0.1 m/s.
Learn more about conservation of linear momentum here: brainly.com/question/13589460
Answer:
15m/s
Explanation:
add the two speeds and divide by 2
10+20=30
30/2=15
Assuming an ideal gas, the speed of sound depends on temperature
only. Air is almost an ideal gas.
Assuming the temperature of 25°C in a "standard atmosphere", the
density of air is 1.1644 kg/m3, and the speed of sound is 346.13 m/s.
The velocity can't be specified, since the question gives no information
regarding the direction of the sound.
Answer:
I reckon towards b. Let me know if im right