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Elden [556K]
4 years ago
8

Suppose Work Input Is 25 J , And The Output Distance 10 M . Factoring In The Effect Of Friction Which Must Be True About Output

Force
Physics
1 answer:
brilliants [131]4 years ago
5 0
Work is defined as the product of force times the distance. Taking in the effect of friction, the equation of input work will look like this:

input work = work against friction + output work
25 = |w| + 10F

Considering that friction exists, then |w| > 0:

25 - 10F > 0

Therefore:
F < 2.5 N
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An airplane cruises at 850 km/h relative to the air. It is flying from Denver, Colorado, due west to Reno, Nevada, a distance of
skad [1K]

Answer:

difference in flight time= 0.3023 hour

Explanation:

The question is incomplete, but I found it in your textbook.

Spped of aircraft = 850 km/h

Opposing speed of wind = 90km/h

Hence, the net speed when it's travelling west = 850 - 90 = 760 km/hr

The distance covered = 1200km

time taken = distance/ time = 1200/ 760 = 1.5789 hours

When coming back, the speed of the wind is complementary to the speed of the aircraft so

net speed when it's coming back = 850 +90 = 940 km/hr

time taken in this instance = 1200/ 940 = 1.2765 hours

Hence, the difference in flight time= 1.5789 - 1.2765 = 0.3023 hour

8 0
3 years ago
If a magnet is put inside one coil of wire a voltage is produced. What will happen if the magnet is put inside two coils of wire
atroni [7]
The choices can be found elsewhere and as follows:

A)There will not be a change. 
<span>B)The voltage will decrease by a factor of two. </span>
<span>C)The voltage will increase by a factor of two. </span>
<span>D)The two coils of wire will cancel out the magnetic field. </span>
<span>E)The voltage will be zero.
</span>
I believe the answer is option C. If the magnet is put inside two coils of wire, then the  voltage will increase by a factor of two. Hope this answers the question.
8 0
4 years ago
7. If your accelerator suddenly gets stuck what should you do?
Natasha2012 [34]
Go neutreal, turn blinkers on, then brake onto the side of the road.
4 0
3 years ago
A hunter fires a rifle while seated with the butt of the gun resting against their shoulder. If the forward momentum is the same
Debora [2.8K]

Answer:

Because the bullet is smaller and has a sharp/pointy tip.

Explanation:

The bullet kinda puts the majority of kinetic energy in a small are, whereas the gun butt kinda spreads the energy evenly amongst a larger surface. If more explanation is needed add comment.

6 0
3 years ago
A wave is a disturbance that carries energy through space. Which of these characterizes the fundamental difference between mecha
shusha [124]

Answer:

Explanation:

Mechanical waves and electromagnetic waves are the types of waves we have. The major difference between this type of waves is that, while mechanical waves requires material medium for its propagation, electromagnetic waves does not require material medium for its propagation.

Example of mechanical waves are waves produced by a ripple tank.

Example of an electromagnetic waves are the electromagnetic spectrum which includes radio waves, infrared waves, visible light, ultraviolet rays etc... This waves are produced naturally without any medium compare to mechanical wave.

3 0
4 years ago
Read 2 more answers
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