A projectile is defined as:

1 answer:

8 0

A projectile is defined as an object that has an initial velocity and follows a path that dependent<span> on the gravitational acceleration.
The gravitational force initially will act on the oposite direction until it reach the maximum height, and right after that, the gravitational force will accelerate the speed of the projectile.</span>

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Answer:

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3 years ago

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A runner can run a 400.0 meter lap in 50.0 seconds. He finishes at the same spot as he began. What is his average velocity?

cestrela7 [59]

8 meters per second. To find velocity is to divide distance by total time. so 400/50.

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Positions of destructive interference on a standing wave are called .?

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The answer is; nodes

A standing wave occurs when two waves with the same properties moving in the opposite direction, in the same media, interfere with one another. Nodes are points where the waves interact destructively causing an appearance of the wave standing still. The opposite of nodes is antinodes where they are points of maximum displacement due to constructive destruction.

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What kind of reasoning is most often used to form hypotheses?

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Deductive reasoning

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You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to

Elanso [62]

Answer:

<h2>The water tank have to support a pressure of 50,456 Pa.</h2>

Explanation:

To design the cylindrical, pressurised water tank, we need to calculate the total pressure that it's being applied to tank, in order to know how strong we need to make it.

The total pressure (P) on the tank is always the sum of all pressures that are involved, external air pressure (P1), inside pressure (P2) and the pressure due to the mass of water (P3).

So, The external air pressure (P1) is 95.0 kPa.

The inside pressure (P2) is 110 kPa.

The pressure due to the mass of water (P3) will be calculated with: $P_{3}=pgh$ ; where p is density of the water, g is the gravity and h the height.

Using the values given g = 3.71 m/s2; h = 13.6 m and p = 1000 kg/m3.

$P_{3}=(1000\frac{kg}{m^{3} } )(3.71\frac{m}{s^{2} } )(13.6m) = 50,456 Pa.$

Therefore, we need to design an water tank strong enough to endure a pressure of 50,456 Pa.

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