1.
What do you mean by a unit?
2.
unit or a derived unit.
are the fundamental units used in physics?
al Bureau of Weights and Me
Answer:
1)the unit of work is joule. 2)it is derived unit because it is made by two different unit force and displacement .3)
destructive
negligible
interference is not involved in the creation of beats
Answer: constructive
Explanation:
Two waves having slightly different frequencies when interfere constructively produce beats. Superposition of these two waves results in addition of amplitudes of the two waves. The amplitude of the resultant wave vibrates or beats.
Beat frequency is given by the absolute difference between the frequencies of the two waves.
b = |f₂ - f₁| = f₂ - f₁ or f₂ + f₁
The train will pass the 1500.0m marker 33.33 seconds after leaving the station. Its velocity is 162.0 km/h.
To find the time it takes for the train to pass the 1500.0m marker, we can use the formula: time = distance / velocity. Plugging in the values,
time = 1500.0m / 45.0 m/s
time = 33.33 seconds.
To convert the velocity from m/s to km/h, we use the conversion factor: 1 m/s = 3.6 km/h. Therefore,
velocity = 45.0 m/s * 3.6 km/h/m/s
velocity = 162.0 km/h.
In summary, the train will pass the 1500.0m marker approximately 33.33 seconds after departing the station, and its velocity will be 162.0 km/h
Read more about velocity here: here:brainly.com/question/80295
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Answer:
119.88 km/h
Explanation:
1500/45=33.3
use a m/s to km/h calculator
put in 33.3 for m/s and you will get 119.88 km/h.
119.88 km/h.
Answer:
The terminal velocities will be the same in a vacuum and different for the egg and further.
Explanation:
Thinking process:
The terminal velocity is the maximum velocity that an object can attain after overcoming the resistance caused by the atmosphere or air. In other words, the velocity equation is given as:
where F is the net force,
D = Drag force
W = Weight of the object falling down.
The drag force increases by the increase with the square of the velocity like this:
The terminal velocity is given by the equation:
V = Sqrt (2W/CdpA)
In the absence of friction, like a vacuum, the velocities are the same.
In the atmosphere, there is drag, and the velocities are different.