The answer is A because when you relocate something you’re moving it to a different place from where you had it at first
Answer:
Speed of sound is 30.91m/s
Explanation:
Speed is given by:
Speed = distance travelled / time taken
Given:
Distance travelled = 1020m
Time taken = 33seconds
Speed = 1020m/33s
Speed = 30.91m/s
<span>magma and lava are the same general components, the only difference in the term is that magma has not been erupted. Once magma is erupted it is than redefined as lava. hope that helps</span>
Answer:
a) One
Explanation:
In a uniform circular motion there must be a force acting to keep it in the circular track. This force can either be centripetal or a centrifugal force.
According to the Newton's first law of motion a particle continues to be in state of rest or in uniform motion until acted upon by an external force.
Here the term uniform motion need to be understood which refers to the uniform velocity of the particle in accordance to the vector laws.
Answer:
Mass needed to fire is ![3 \times 10^4 kg](https://tex.z-dn.net/?f=3%20%5Ctimes%2010%5E4%20kg)
Explanation:
Mass of the spaceship ![m_{0} = 5.30 \times 10^4 kg](https://tex.z-dn.net/?f=m_%7B0%7D%20%3D%205.30%20%5Ctimes%2010%5E4%20kg)
Initial velocity of the spaceship![v_{0} = 5.75 \times 10^3 m/s](https://tex.z-dn.net/?f=v_%7B0%7D%20%3D%205.75%20%5Ctimes%2010%5E3%20m%2Fs)
Final velocity of the spaceship ![v_{f} = 8.39 \times 10^3 m/s](https://tex.z-dn.net/?f=v_%7Bf%7D%20%3D%208.39%20%5Ctimes%2010%5E3%20m%2Fs)
Take exhaust velocity
The velocity of the spaceship in the space is
![v_{f}=v_{0}+u\times ln(\frac{m_{0}}{m} )\\8.39 \times 10^3= 5.75 \times 10^3+ 4.6 \times 10^3 \times ln(\frac{5.30 \times 10^4}{m} )\\8.39 \times 10^3-5.75 \times 10^3= 4.6 \times 10^3 \times ln(\frac{5.30 \times 10^4}{m} )\\2.64 \times 10^3=4.6 \times 10^3 \times ln(\frac{5.30 \times 10^4}{m} )\\\frac{2.64 \times 10^3}{4.6 \times 10^3} = ln(\frac{5.30 \times 10^4}{m} )\\0.57=ln(\frac{5.30 \times 10^4}{m} )\\e^{0.57}=\frac{5.30 \times 10^4}{m}\\m=\frac{5.30 \times 10^4}{1.768} \\m=3 \times 10^4 kg](https://tex.z-dn.net/?f=v_%7Bf%7D%3Dv_%7B0%7D%2Bu%5Ctimes%20ln%28%5Cfrac%7Bm_%7B0%7D%7D%7Bm%7D%20%29%5C%5C8.39%20%5Ctimes%2010%5E3%3D%205.75%20%5Ctimes%2010%5E3%2B%204.6%20%5Ctimes%2010%5E3%20%5Ctimes%20ln%28%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7Bm%7D%20%29%5C%5C8.39%20%5Ctimes%2010%5E3-5.75%20%5Ctimes%2010%5E3%3D%204.6%20%5Ctimes%2010%5E3%20%5Ctimes%20ln%28%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7Bm%7D%20%29%5C%5C2.64%20%5Ctimes%2010%5E3%3D4.6%20%5Ctimes%2010%5E3%20%5Ctimes%20ln%28%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7Bm%7D%20%29%5C%5C%5Cfrac%7B2.64%20%5Ctimes%2010%5E3%7D%7B4.6%20%5Ctimes%2010%5E3%7D%20%3D%20ln%28%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7Bm%7D%20%29%5C%5C0.57%3Dln%28%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7Bm%7D%20%29%5C%5Ce%5E%7B0.57%7D%3D%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7Bm%7D%5C%5Cm%3D%5Cfrac%7B5.30%20%5Ctimes%2010%5E4%7D%7B1.768%7D%20%5C%5Cm%3D3%20%5Ctimes%2010%5E4%20kg)
Mass needed to fire is ![3 \times 10^4 kg](https://tex.z-dn.net/?f=3%20%5Ctimes%2010%5E4%20kg)