A massless string connects a 10.00 kg mass to a 13.00 kg cart which is resting on a frictionless horizontal surface. The mass ha
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The constant acceleration of a rocket launched upward, calculated knowing that the time it takes for a bolt that falls off the side of the rocker was 6.30 seconds, is 5.68 m/s².
When the rocket is launched straight up with constant acceleration, the acceleration of the rocket is given by:
Where:
: is the final velocity of the rocket
: is the initial velocity of the rocket = 0
a: is the acceleration
t: is the time
After 4 seconds, the <u>final speed of the rocket</u> will be the <u>initial speed of the bolt</u>, so:
When the bolt falls off the side of the rocket, the bolt hits the ground 6.30 seconds later.
The<u> initial height of the bolt</u> will be the <u>final height of the rocket</u>, and vice-versa. With this, we can take the final height of the bolt as zero.
Now, as we said above, this height (of the bolt) will be the final height of the rocket, so:
Therefore, the acceleration of the rocket is 5.68 m/s².
You can find another example of acceleration calculation here: brainly.com/question/24589208?referrer=searchResults
I hope it helps you!
Answer:
331.28 K
Explanation:
To solve this problem, you need to know that the heat that the water at 373 K is equal to the heat that the water at 285 K gains.
First, we will asume that at the end of this process there won't be any water left in gaseous state.
The heat that the steam (H20(g)) loses is equal to the heat lost because the change of phase plus the heat lost because of the decrease in temperature:
The specific Heat c of water at 298K is 4.18 kJ/K*kg.
The latent heat cl of water is equal to 2257 kJ/kg.
The heat that the cold water gains is equal to heat necessary to increase its temperature to its final value:
Remember that in equilibrium, the final temperature of both bodies of water will be equal.
Then: