Answer:
the action of measuring something.
Oxygen. Plants need water sunlight and CO2 to make their food. They get the carbon and the energy from the CO2 and the sun, and they need water as well. Then they release oxygen
Refraction is simply the bending of light when it moves from one material into another. If light is beamed at 90° to a surface, no bending happens. But if you shine the light at an angle it will bend one way or another.
Diffraction is a process in which a beam of light travels through a gap or around a barrier, and spreads out as a result.
<span> Dispersion is the property that the speed of light in a transparent material is different for different wavelengths. Thus the index of refraction is likewise different.</span>
Answer:
Ultrasound is used by bats to navigate (move) and catch prey. Ultrasonic squeaks are produced by bats. These squeaks ponder prey and then return to the bat's ear. This provides bats with information about the location of prey, allowing them to catch it.
Explanation:
So, based on the angle values that have been found, the angle of elevation of the nozzle can be <u>16° or 74°</u>.
<h3>Introduction</h3>
Hi ! This question can be solved using the principle of parabolic motion. Remember ! When the object is moving parabolic, the object has two points, namely the highest point (where the resultant velocity is 0 m/s in a very short time) and the farthest point (has the resultant velocity equal to the initial velocity). At the farthest distance, the object will move with the following equation :
With the following condition :
= the farthest distance of the parabolic movement (m)
= initial speed (m/s)
= elevation angle (°)- g = acceleration due to gravity (m/s²)
<h3>Problem Solving :</h3>
We know that :
- = the farthest distance of the parabolic movement = 2.5 m
- = initial speed = 6.8 m/s
- g = acceleration due to gravity = 9.8 m/s²
<h3>What was asked :</h3>
- = elevation angle = ... °
Step by Step :
- Find the equation value
(elevation angle)
- Find the angle value of the equation by using trigonometric equations. Provided that the parabolic motion has an angle of elevation 0° ≤ x ≤ 90°.
First Probability
→ 
(T)
→ 
(F)
Second Probability
→ 
(T)
→ 
(F)
<h3>Conclusion</h3>
So, based on the angle values that have been found, the angle of elevation of the nozzle can be 16° or 74°.
