Velocity, va2 = 10.5 ft/s
<u>Explanation:</u>
From the figure:
Length of the cable = Sa + 2Sb = l
∴ vₐ = -2vb
Applying the principle of Impulse and momentum in x-direction
Limit is t1 to t2
-(1)
Applying the principle of Impulse and momentum in y-direction
Limit is t1 to t2
-(2)
Solving equation (1) and (2), we obtain
T = 1.6lb
va2 = 10.5 ft/s
Answer:
46°C
Explanation:
q = mCΔT
336,000 J = (20 kg) (4200 J/kg/°C) (50°C − T)
T = 46°C
Hello,
<span>A police car parked on the side of the highway emits a 1200 Hz sound that bounces off a vehicle farther down the highway and returns with a frequency of 1250 Hz.
How fast is the vehicle going?
Doppler equation formula: </span>ƒL = ƒS(v - vL)/(v - vS)
The wave returns with a frequency of 1250 Hz, the <span>echo frequency is higher; the car must be traveling towards the police car.
</span><span>The wave echo is coming back towards the police car at the same speed as the sound wave travels towards the moving car so t</span><span>he relative speed between the cars is half of the speed of the echo.
* </span><span>speed of sound equals about 337 m/s </span>
2v / 337 = (1250/1200) - 1
<span>2v = 14.04 m/s </span>
<span>v = 7.02 m/s
</span>
Thus, the vehicle is going 7.02 m/s.
Faith xoxo
Answer:
the answers maybe→↓
Explanation:
high blood pressure.
cigarette smoking.
diabetes.
high blood cholesterol levels.
heavy drinking.
Answer:
<em>In order from largest to smallest these terms are:</em>
- <em>In order from largest to smallest these terms are:Universe</em>
- <em>In order from largest to smallest these terms are:UniverseGalaxy</em>
- <em>In order from largest to smallest these terms are:UniverseGalaxySolar system</em>
- <em>In order from largest to smallest these terms are:UniverseGalaxySolar systemStar</em>
- <em>In order from largest to smallest these terms are:UniverseGalaxySolar systemStarPlanet</em>
- <em>In order from largest to smallest these terms are:UniverseGalaxySolar systemStarPlanetMoon</em>
- <em>In order from largest to smallest these terms are:UniverseGalaxySolar systemStarPlanetMoonAsteroid</em>
<em>In order from largest to smallest these terms are:UniverseGalaxySolar systemStarPlanetMoonAsteroidWe can generally say that a Moon is larger than an asteroid however some moons are quite large while others are smaller than many known asteroids. Asteroids are small rocky bodies that orbit the Sun, while moons are objects that orbit planets. Jupiter and Saturn have attracted many objects out of the asteroid belt and gathered them as moons.</em>
