Answer:
Mg= 1.3418 kg*m/s
Explanation:
Mass of rifle
Recoil velocity of rifle
Momentum of rifle
mass of bullet
mb=7.2x10^{-3} kg=0.0072 kg
velocity of bullet relative to muzzel
v_{b} = 601 m/s
velocity of bullet relative to earth= 601 - 1.95=599.05 m/s
momentum of bullet
the momentum of the propellant gases = momentum of rifle - momentum of bullet
the momentum of the propellant gases
Mg=5.655 -4.3132
Mg= 1.3418 kg*m/s
the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle is 1.3418 kgm/s
In navigation bearing refers to : 1. the direction of motion itself; 2. the direction of a distant object relative to the current course 3.the angle away from North of a distant point as observed at the current point.
There is a thing called absolute bearing, and it refers to the angle between the magnetic North/true North and an object. (e.g. an object of 0 degrees would be dead ahead, whereas and object of 180 degrees would be behind you)
It is because of their gravitational pull .. Due to high gravitational force the planets are tend to move closer and they infact form closer to the sun. as the mass of the sun is very large.
and some of them which is also considered as outer planets like the titan the moon of the Saturn .. has to orbit the Saturn due to the gravitational force . its all because of the gravitational force between the planets and the sun .. which comprises to form solar system
Answer:
as they go from solid to liquis to gas they heat up from thermal energy. that thermal energy then excites the molecules making them move faster causing them to change phases.
Answer:
In a second class lever, the load is located between the effort and the fulcrum. If the load is closer to the fulcrum than the effort, then less effort will be required to move the load. If the load is closer to the effort than the fulcrum, then more effort will be required to move the load.
Explanation:
from what i learned, if its farther away from the load, its easier to lift, like a wheel barrel
