a) mass
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The time of flight of the ball is 3.08 s
Explanation:
The motion of the cannonball is a projectile motion, consisting of two motions:
- A uniform motion (constant velocity) along the horizontal direction
- An accelerated motion with constant acceleration along the vertical direction
Here we can solve the problem just by analyzing the horizontal motion. In fact, we know that:
u = 24 m/s is the initial velocity of the ball
is the angle of projection
d = 56.6 m is the range of the ball (the horizontal distance covered)
First of all, we can find the initial velocity in the horizontal direction:
We know that this horizontal velocity is constant, so it is related to the range by:
where t is the time of flight of the ball; and solving for t, we find
Learn more about projectile motion:
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Answer: A. The total displacement divided by the time and C. The slope of the ant's displacement vs. time graph.
Explanation:
Hi! The question seems incomplete, but I found the options on the internt:
A. The total displacement divided by the time.
B. The slope of the ant's acceleration vs. time graph.
C. The slope of the ant's displacement vs. time graph.
D. The average acceleration divided by the time.
Now, since we know the ant is travelling at a constant speed, its average velocity will be expressed by the following equation:
Where:
is the ant's total displacement
is the time it took to the ant to travel to the kitchen
Hence one of the correct options is: A. The total displacement divided by the time
On the other hand, this can be expressed by a displacement vs. time graph graph, where the slope of that line leads to the equation written above. So, the other correct option is:
C. The slope of the ant's displacement vs. time graph.
Answer:
I'm positive it's the last one
Explanation:
Answer: large reflector located in orbit above the Earth's atmosphere
Explanation:
Since the student wants to see the big weather patterns in the upper atmosphere of the planet, and she will therefore need to have excellent resolution, the type of telescope that is ideal for her to use is a large reflector located in orbit above the Earth's atmosphere.
It should be noted that the refractor or a radio telescope isn't ideal in this situation as they will not capture the bug weather pattern and doesn't have an excellent resolution like the large reflector.