Answer:
A prism can disperse light into different colors when the light enters the prism at a "fixed" angle - light coming in, perhaps, thru a narrow slit
If light can enter at all angles, then dispersion occurs at all angles and no dispersion can be seen
Explanation:
Cavab artıq 4 ilə 5 arasındadır, yəni 0-da 9-unuz olduğu üçün olduğu yerə qayıdın və cavab var
Answer: 317.0 m/s
Explanation:
The motion of the bullet is a projectile motion, with:
- a uniform motion with constant speed v along the horizontal direction
- an accelerated motion with constant acceleration toward the ground
We know that the starting height of the bullet is h=1.4 m. If we consider the vertical motion only, the initial velocity is zero, so we can write:
The bullet reach the ground when y(t)=0, so the time taken is
During this time, the bullet travels d=168 m horizontally, so its horizontal speed (which is equal to the initial speed of the bullet) is given by
Clara is jogging faster during part C of her run.
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<h3>What is average velocity?</h3>
The average velocity of an object is the change in the object's displacement per change in the time of motion.
From the graph of Clara's motion, the average velocity of Clara in part A is calculated as follows;
The average velocity of Clara in part C is calculated as follows;
Thus, we can conclude that Clara is jogging faster during part C of her run.
Learn more about average velocity here: brainly.com/question/6504879