Answer:
It is a well known fact that the earth rotates around the sun in an inclined axis which is approximately 23 degree. The inclined nature of earth axis causes variation in the solar heat received at any place on the earth surface. The hemisphere facing the sun due to this axial tilt, gets higher sun energy as compared to the opposite side. The hemisphere which faces the sun will experience summer whereas the hemisphere away from sun will experience winter.
In each of the hemisphere the polar areas will receive higher radiation and longer daytime during the summer season. However it has been observed that there is difference in radiation received at different areas of earth surface and radiated. The tropical areas have lower reflectance and thus a large part of incoming solar radiation have been absorbed along the tropics. The poles though have longer daytime during summer and hence greater solar radiation but due to high reflectance radiate more energy. Thus the tropical areas have surplus energy as compared to deficit energy areas of poles. This difference in energy creates a heat imbalance.
This net heat difference between poles and equator gives rise to a global circulation system leading to flow of heat from the net energy excess areas to deficit areas. This circulation takes place through atmosphere as well as oceans and different process of climate viz. evaporation, transpiration, rainfall, wind, convection, oceanic circulations etc work as tools of this system
Answer:
4 times around
Explanation:
The total number of teeth involved will be the same for each gear. If the front gear is connected to the pedal and it goes around twice, then 2·24 = 48 teeth will have passed the reference point.
If the rear gear is attached to the wheel, and 48 teeth pass the reference point, then it will have made ...
(48 teeth)/(12 teeth/turn) = 4 turns
Answer:
B false it is illegal to only have got fog lights on though and bright headlights because it can distract other drivers going last and if the y are distracted then that will cause a collision
Hope this helps :)
Explanation:
Answer:
![h_{max} = 51.8 cm](https://tex.z-dn.net/?f=h_%7Bmax%7D%20%3D%2051.8%20cm)
Explanation:
given data:
height of tank = 60cm
diameter of tank =40cm
accelration = 4 m/s2
suppose x- axis - direction of motion
z -axis - vertical direction
= water surface angle with horizontal surface
accelration in x direction
accelration in z direction
slope in xz plane is
![tan\theta = \frac{a_x}{g +a_z}](https://tex.z-dn.net/?f=%20tan%5Ctheta%20%3D%20%5Cfrac%7Ba_x%7D%7Bg%20%2Ba_z%7D)
![tan\theta = \frac{4}{9.81+0}](https://tex.z-dn.net/?f=tan%5Ctheta%20%3D%20%5Cfrac%7B4%7D%7B9.81%2B0%7D)
![tan\theta =0.4077](https://tex.z-dn.net/?f=tan%5Ctheta%20%3D0.4077)
the maximum height of water surface at mid of inclination is
![\Delta h = \frac{d}{2} tan\theta](https://tex.z-dn.net/?f=%5CDelta%20h%20%3D%20%5Cfrac%7Bd%7D%7B2%7D%20tan%5Ctheta)
![=\frac{0.4}{2}0.4077](https://tex.z-dn.net/?f=%20%3D%5Cfrac%7B0.4%7D%7B2%7D0.4077)
![\Delta h 0.082 cm](https://tex.z-dn.net/?f=%20%5CDelta%20h%20%200.082%20cm)
the maximu height of wwater to avoid spilling is
![h_{max} = h_{tank} -\Delta h](https://tex.z-dn.net/?f=h_%7Bmax%7D%20%3D%20h_%7Btank%7D%20-%5CDelta%20h)
= 60 - 8.2
![h_{max} = 51.8 cm](https://tex.z-dn.net/?f=h_%7Bmax%7D%20%3D%2051.8%20cm)
the height requird if no spill water is ![h_{max} = 51.8 cm](https://tex.z-dn.net/?f=h_%7Bmax%7D%20%3D%2051.8%20cm)