Answer: yes
Explanation: Assuming a it's moving 20m/s in the west direction and slowing down at a rate of -5m/s² (deceleration), the negative sign would imply the westward direction because -5 west is the same thing as +5 east. So, the boat is moving 20m/s west direction and accelerating at 5m/s² east direction.
Other examples of these are: Cars and and tricycles.
Answer:
300K, 600K
Explanation:
ΔS =nCp ㏑(
)
= (2.5) (78.314) ㏑(
) = 14.41
Qp =(2.5) (8.314) (T2-T1)
= 6236 J.
=> 20.8 (T2-T1) - 6236
=> T2-T1 = 300
=> T2=T1 + 300
20.8 ㏑(
) = ![14.41](https://tex.z-dn.net/?f=14.41)
=> ![\frac{300+T1}{T1} = 2](https://tex.z-dn.net/?f=%5Cfrac%7B300%2BT1%7D%7BT1%7D%20%3D%202)
=> T1 = 300K
=> T2 = 600K
Answer:
As an object’s temperature increases, the Rate at which it radiates energy increases.
Kinetic energy is the energy that is associated with motion. It is the energy possessed by an object that is moving. It is calculated from one-half the product of the mass and the square of the velocity of the object. From this, we can calculate the mass of the object. We do as follows:
KE = mv^2/2
500 J = m(5 m/s)^2 / 2
m = 40 kg