Consider the motion of a bullet that is fired from a rifle 2 m above the ground in a northeast direction. The initial velocity of the bullet is (200,200,00. Assume the xaxis points east, the y-axis points north, the positive z-axis is vertical (opposite go, the ground is horizontal, and only the gravitational force acts on the object. a. Find the velocity and position vectors for t20.
b. Make a sketch of the trajectory.
c. Determine the time of fight and range of the bullet.
d. Determine the maximum height of the bullet.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.