Answer: 17939.74 yards
Explanation:
Given , A rectangular measures 100 meters by 150 meters
To find : Area of rectangle.
Formula :
Area of rectangle = Length x width
Here, let length = 100 meters and width = 150 meters
Then, Area of rectangle = 100 meters x 150 meters = 15,000 square meters
Also , 1 meter = 1.09361 yards
Then, Area of rectangle = 15,000 x 1.09361 x 1.09361 square yards
= 17939.7424815 square yards
≈ 17939.74 yards
Hence, the area of rectangle is 17939.74 yards .
Answer:
a=-1.58 m/s^2
Explanation:
Vo=34m/s
Vf=15m/s
t=12s
a= dV/dt = (Vf-Vo) /t = (15-34)/12
= - 19/12 = - 1.58m/s2
Answer:
3494444444.44444 J
-87077491.39453 J
Explanation:
M = Mass of Earth = ![6.371\times 10^{6}\ kg](https://tex.z-dn.net/?f=6.371%5Ctimes%2010%5E%7B6%7D%5C%20kg)
G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²
R = Radius of Earth = ![6.371\times 10^{6}\ m](https://tex.z-dn.net/?f=6.371%5Ctimes%2010%5E%7B6%7D%5C%20m)
h = Altitude = ![2.87\times 10^9\ m](https://tex.z-dn.net/?f=2.87%5Ctimes%2010%5E9%5C%20m)
m = Mass of satellite = 629 kg
v = Velocity of spacecraft = ![1.2\times 10^4\ km/h](https://tex.z-dn.net/?f=1.2%5Ctimes%2010%5E4%5C%20km%2Fh)
The kinetic energy is given by
![K=\frac{1}{2}629\times \left(1.2\times 10^4\times \dfrac{1000}{3600}\right)^2\\\Rightarrow K=3494444444.44444\ J](https://tex.z-dn.net/?f=K%3D%5Cfrac%7B1%7D%7B2%7D629%5Ctimes%20%5Cleft%281.2%5Ctimes%2010%5E4%5Ctimes%20%5Cdfrac%7B1000%7D%7B3600%7D%5Cright%29%5E2%5C%5C%5CRightarrow%20K%3D3494444444.44444%5C%20J)
The spacecraft's kinetic energy relative to the earth is 3494444444.44444 J
Potential energy is given by
![U=-\dfrac{GMm}{R_e+h}\\\Rightarrow U=-\dfrac{6.67\times 10^{-11}\times 5.97\times 10^{24}\times 629}{2.87\times 10^9+6.371\times 10^{6}}\\\Rightarrow U=-87077491.39453\ J](https://tex.z-dn.net/?f=U%3D-%5Cdfrac%7BGMm%7D%7BR_e%2Bh%7D%5C%5C%5CRightarrow%20U%3D-%5Cdfrac%7B6.67%5Ctimes%2010%5E%7B-11%7D%5Ctimes%205.97%5Ctimes%2010%5E%7B24%7D%5Ctimes%20629%7D%7B2.87%5Ctimes%2010%5E9%2B6.371%5Ctimes%2010%5E%7B6%7D%7D%5C%5C%5CRightarrow%20U%3D-87077491.39453%5C%20J)
The potential energy of the earth-spacecraft system is -87077491.39453 J
Answer:
Different and better?
Explanation:
i dont think that helps lol