Kinetic energy of an object is the energy it contains due to movement. If an object is at rest, it doesn't have kinetic energy. If it's moving, then it has kinetic energy. It's pretty simple! The amount of kinetic energy of an object is dependent upon two variables, one being the mass of the object
Answer:
The hottest temperature is ![T_2 = 39^o C](https://tex.z-dn.net/?f=T_2%20%3D%2039%5Eo%20C)
Explanation:
From the question we are given
![T_1 = 98 F](https://tex.z-dn.net/?f=T_1%20%3D%20%2098%20F)
![T_2 = 39^oC](https://tex.z-dn.net/?f=T_2%20%3D%20%2039%5EoC)
![T_3 = 303 \ K](https://tex.z-dn.net/?f=T_3%20%3D%20%20303%20%5C%20%20K)
Generally converting
to Fahrenheit
![T_3' = (T_3 -273 ) * \frac{9}{5} + 32](https://tex.z-dn.net/?f=T_3%27%20%3D%20%20%28T_3%20-273%20%29%20%2A%20%5Cfrac%7B9%7D%7B5%7D%20%20%2B%2032)
=> ![T_3' = (303 -273 ) * \frac{9}{5} + 32](https://tex.z-dn.net/?f=T_3%27%20%3D%20%20%28303%20-273%20%29%20%2A%20%5Cfrac%7B9%7D%7B5%7D%20%20%2B%2032)
=> ![T_3' = 86 F](https://tex.z-dn.net/?f=T_3%27%20%3D%2086%20F)
Converting
to Fahrenheit
![T_2' = T_2 * \frac{9}{5} + 32](https://tex.z-dn.net/?f=T_2%27%20%3D%20%20T_2%20%2A%20%5Cfrac%7B9%7D%7B5%7D%20%20%2B%2032)
=> ![T_2' = 39 * \frac{9}{5} + 32](https://tex.z-dn.net/?f=T_2%27%20%3D%20%2039%20%2A%20%5Cfrac%7B9%7D%7B5%7D%20%20%2B%2032)
=>
Now comparing the temperature in Fahrenheit we see that
is the hottest
Answer:
3. 5.0N/kg
Explanation:
Gravitational field strength = gravitational force/mass of astronaut = 350N/70kg = 5.0N/kg
Answer:
Q = 177J
Explanation:
Specific heat capacity of lead=0.13J/gc
Q=MCΔT
ΔT=T2-T1,where T1=22degrees Celsius and T2=37degree Celsius.
ΔT=37 - 22 = 15
Q = Change in energy
M = mass of substance
C= Specific heat capacity
Q = (91g) * (0.13J/gc) * (15c)= 177.45J
Approximately, Q = 177J
If the pressure is lowered, than the volume must increase. Therefore, when the pressure goes down, the balloons get larger and larger. They may even pop, depending on how full they were to start with. But if they don't pop, when the pressure went back up (you climbed back down to the classroom)... then the balloon would go back to it's normal size.