The transfer of heat from the Sun is in the form of thermal radiation (also called infrared radiation)
The transfer of heat at the person’s feet is by thermal conduction. During the day the sand will be hot so if you step on it with bare feet there will be conduction of heat to the feet.
Answer:
According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration. In Example D, the object is moving in the negative direction (i.e., has a negative velocity) and is speeding up.
The second one is best. Gravity is an attractive force that acts between all objects, whether they're in contact or not.
Answer:
26.466cm³/min
Explanation:
Given:
Volume 'V'= 320cm³
P= 95kPa
dP/dt = -11 kPa/minute
pressure P and volume V are related by the equation
P
=C
we need to find dV/dt, so we will differentiate the above equation
![V^{1.4} \frac{dP}{dt} + P\frac{d[V^{1.4} ]}{dt} = \frac{d[C]}{dt}](https://tex.z-dn.net/?f=V%5E%7B1.4%7D%20%5Cfrac%7BdP%7D%7Bdt%7D%20%2B%20P%5Cfrac%7Bd%5BV%5E%7B1.4%7D%20%5D%7D%7Bdt%7D%20%20%3D%20%5Cfrac%7Bd%5BC%5D%7D%7Bdt%7D)
lets solve for dV/dt, we will have
(plugged in all the values at the instant)
= 26.466
Therefore, the volume increasing at the rate of 26.466cm³/min at this instant
