Which material reflects the most light??

Most weather occurs in which atmospheric layers?

Slav-nsk [51]

Answer:

Troposphere

Explanation:

The troposphere is the lowest layer of the Earth's atmosphere. The earth's atmosphere has the following layers:

- Troposphere - Stratosphere - Mesosphere -Thermosphere - Exosphere

The troposphere lies 10 km above the land surface and most weather phenomena and conditions (e. g. clouds, turbulence) occur there.

Most of the water vapor in the atmosphere is in the troposphere (about 99%) and most of the atmosphere's mass is contained in the troposphere (75%)

5 0

4 years ago

9) Manypeoplearefamiliarwiththefactthatariflerecoilswhenfired.Thisrecoilistheresultof actionreactionforcepairs.Agunpowderexplosi

ycow [4]

Answer:

B. Smaller than the acceleration of the bullet.

Explanation:

According to the law of conservation of momentum; the total momentum of the gun and bullet after firing is equal to the total momentum of the gun and bullet before firing.

However, the mass of gun is much larger than that of the bullet hence it follows that the velocity and acceleration during the recoil of the rifle is much smaller in comparison to the velocity and acceleration of the of bullet.

So; the acceleration of the rifle is given by the force exerted on the rife by the bullet divided by the mass of the rifle. Given that the mass of the rifle is much greater than the mass of the bullet, the acceleration of the rifle is much less than that of the bullet.

6 0

3 years ago

Aaron rode her bike to his house to play cards he Road for 1.6 hours at 6.5 KMH another 15 minutes at four KMH what was her aver

Kay [80]

Answer:

The average speed during the trip is 6.16 $\frac{km}{hour}$

Explanation:

Speed is a physical quantity that expresses the variation in position of an object and as a function of time. In other words, speed expresses the relationship between the space traveled by an object, the time used for it and its direction.

The speed can be calculated by the expression:

$Speed=\frac{distance}{time}$

Aaron rode his bike home for 1.6 hours at 6.5 km/h and another 15 minutes at 4 km/h. So, the distance in each of the stages can be calculated as, taking into account that 60 minutes= 1 hour: