Answer:
If the wheelchair is up 7.1 ft. In hight the time of flight should be 0.664 seconds and the distance should be 12.108 ft.
Explanation: I divided the displacement by the time and I used the equation Vx = 20 km/m
Answer: A) <u>Either source or listener must be moving.</u>
Explanation:
Frequencies can shift if an observer is moving relative to the wave’s source. This type of shift is called the Doppler effect (often used to analyze sounds). Think about the sound you hear when a police siren passes you and drives away; as the car increases its distance from you, the pitch of its sound becomes lower. This is because each wave is emitted from a greater distance, causing the wavelength to spread out or increase relative to you, the listener.
20 N , in +x direction is the vector sum of these Toro forces.
<h3>What is
force?</h3>
- The word "force" has a specific meaning in science.
- At this level, calling a force a push or a pull is entirely appropriate.
- A force is not something an object "has in it" or that it "contains."
- One thing experiences a force from another.
- There are both living things and non-living objects in the concept of a force.
- Force is used to describe a body's tendency to modify or change its state as a result of an external cause.
- When force is applied, the body can also alter its size, shape, and direction. kicking a ball, pushing and pulling on the door, or kneading dough are a few examples.
- The newton, abbreviated N, is the SI unit of force.
To learn more about forces from the given link :
brainly.com/question/28021338
#SPJ4
Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
We live on the troposphere
