Answer:
The magnitude and direction of the centripetal acceleration will be:
m/s² (towards the center of the circle).
Explanation:
Given
Using the formula to determine the centripetal acceleration
m/s²
As the truck is moving in a circle, therefore the direction is towards the center of the circle.
Hence, the magnitude and direction of the centripetal acceleration will be:
m/s² (towards the center of the circle).
The answer is; Near the magnetic poles of Saturn
Auroras that are solar-generated occur when charged particles from the sun interact with the magnetosphere. The charged particles then interact iht the molecules in the atmospheres as they run through the planet’s magnetic field. Saturn's auroras are hydrogen based and can't be viewed in the visible light spectrum. Saturn also has other patched of auroras other than in its poles and these are not solar generated.
Answer:
option (c)
Explanation:
According to the doppler's effect, the frequency of sound decreases.
If there is a relative motion between the source and the observer, the frequency of sound changes apparently.
the formula of the doppler effect is given by
where, f is the real frequency, v be the speed of sound, vo be the speed of the observer, here, the bus is the observer.
So, the value of f' < f
Answer: Water is absorbed in the intestine through gradient transport. The correct option is E.
Explanation:
Absorption of water in the mammalian intestines occurs largely on the small intestine through a transport mechanism known as osmosis. Osmosis is the movement of water molecules, through a semi permeable membrane, from the region of lower solute concentration into higher solute concentration to attain an equilibrium.
For water molecules to be absorbed from the lumen into the bloodstream, it's dependent on sodium absorption. This follows the following steps:
-sodium is absorbed by co transport with glucose and amino acids.this aids to move sodium from lumen into the enterocyte.
- Rapid exportation of absorbed sodium through sodium pimps from the enterocyte.
- As sodium is pumped out of cells an osmotic gradient is formed across apical cell membrane, this helps to osmotically drive water across the epithelium. Therefore water is absorbed in the intestine through the osmotic gradient created by sodium absorption. I hope this helps. Thanks.
Answer:
When elements bond together or when bonds of compounds are broken and form a new substance
Explanation:
