(2)<span>less than 750 N.( if the downward acceleration of elevator were g,then answer would be 0 N.)</span>
Answer:
Because everyone knows that when you increase temperature activity withn molecules increases they will collide more making the can probably explode
<span>Primarily C, but depending on what's being discussed, it could be all of the above
</span>
Answer:
Mars
Explanation:
In the 1960s, humans set out to discover what the red planet has to teach us. Now, NASA is hoping to land the first humans on Mars by the 2030s. Mars has captivated humans since we first set eyes on it as a star-like object in the night sky.
good luck
please mark me as a brainliest
Answer:
The kinetic energy of the astronaut is far greater than that of the truck; 2,334,111,728.4Joules
Explanation:
Given the mass of the truck to be 20000kg and its velocity to be 110km/hr, its velocity in meter/seconds will give;
110×1000m/1×3600s
= 110000m/3600s
= 30.6m/s
KE of the truck = 1/2MV²
= 1/2×20000×30.6²
KE = 9,363,600Joules
KE of truck = 9.363MJ
Similarly, given mass of the astronaut to be 80kg and velocity of 27500km/hr, converting the velocity to m/s we have:
27500×1000m/1×3600s
= 27,500,000/3600
= 7638.9m/s
Its kinetic energy will be;
KE = 1/2×80×7638.9²
KE = 2,334,111,728.4Joules
KE = 2.33GJ
The kinetic energy of the astronaut is approximately 2.33gigaJoules
This shows that the kinetic energy of the astronaut is far greater than that of the truck.
