A 10-kilogram bicycle is traveling at a speed of 2m/s. what is the bike's kinetice energy?
1 answer:
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Answer:
The temperature of air will increase by
Explanation:
Given:
- no. of person in a theater,
- volume of air in the theater,
- rate of heat given off by each person,
- duration of movie,
- initial pressure in the theater,
- initial temperature in the theater,
- specific heat capacity of air at the given conditions,
<u>The total quantity of heat released by the total people in the theater during the movie:</u>
<u>Form the relation of heat capacity:</u>
∵
Change in temperature of air:
Solution is in attachment ~
I hope that you got what you were looking for, and if there's different data then go through the same procedure, using same formula with different values and you will get your answer ~
A) 2.64 H
The maximum height that the expelled rock can reach can be found by using the equation:
where
v = 0 is the velocity at the maximum height
u is the initial velocity
g is the acceleration of gravity
d is the maximum height
Solving for d,
We see that the maximum heigth is inversely proportional to g. On the Earth,
and
So we can write:
where H' is the maximum height reached on Mars, and is the acceleration of gravity on Mars. Solving for H',
B) 2.64T
The time after which the rock reaches the maximum height can be found by using
where
v = 0 is the velocity at the maximum height
u is the initial velocity
Solving for t,
The total time of the motion is twice this value, so:
So we see that it is inversely proportional to g.
On the Earth, t = T. So we can write:
where T' is the total time of the motion on Mars. Solving for T',