The correct answer for the maginitude of the average velocity of the particle between t = 1.0 s and t = 4.0 s is 0.67 m/s .
The average velocity concept was used to solve this problem.First, use the figure to calculate the distance and time required.The average velocity is then calculated using the time interval and total displacement. Average velocity is a measure of displacement over time. This is also known as the average rate of change in position over time.
The average velocity is as follows:
The velocity is denoted by v = (v 2-v 1) / (t 2- t 1)
t 1 = 4 sec
t 2 = 1 sec
t2 - t1 = 4 seconds - 1 second = 3 seconds
x1 = 2 m
x 2 = 0 m
x 2- x1 = 2 m
The velocity formula is v = (x 2- x1) / (t2- t 1)
the answer = 0.67 m/s
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Answer:
0.000136kg/m3
Explanation:
13.6 / 1000 = 0.0136kg/cm3
0.0136 / 100 = 0.000136kg/m3
While plane is moving under tailwind condition it took time "t"
so here we will have
here net speed of the plane will be given as
similarly when it moves under the condition of headwind its net speed is given as
now time taken to cover the distance is 2 hours more
now solving two equations
solving above for v_w we got
Answer:
20N
Explanation:
Given parameters:
Work done = 200J
Distance moved = 10m
Unknown:
Amount of force applied =?
Solution:
Work done is the force applied on a body to move it in the direction of the force.
Work done = force x distance
The unit of work done is in joules
Since the unknown is force, we make it the subject of the expression;
Force = 
Force = 
= 20N
Answer: A) Current
Current is the flow of electrons. The more electrons that flow, then the higher the amperage which measures this flow. If the current is high enough, then the electrical shock may cause damage of some kind.
"Amperage" is abbreviated as "Amp". You may see something like "milliamp" when it comes to measuring this amperage.
