A. static ......................
Answer:
(a) ![a=2m/sec^2](https://tex.z-dn.net/?f=a%3D2m%2Fsec%5E2)
(b) 5220 j
(c) 1740 watt
(d) 3446.66 watt
Explanation:
We have given mass m = 290 kg
Initial velocity u = 0 m/sec
Final velocity v = 6 m/sec
Time t = 3 sec
From first equation of motion
v = u+at
So ![a=\frac{v-u}{t}=\frac{6-0}{3}=2m/sec^2](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv-u%7D%7Bt%7D%3D%5Cfrac%7B6-0%7D%7B3%7D%3D2m%2Fsec%5E2)
(a) We know that force is given by
F = ma
So force will be ![F=290\times 2=580N](https://tex.z-dn.net/?f=F%3D290%5Ctimes%202%3D580N)
(b) From second equation of motion we know that
![s=ut+\frac{1}{2}at^2=0\times 3+\frac{1}{2}\times 2\times 3^2=9m](https://tex.z-dn.net/?f=s%3Dut%2B%5Cfrac%7B1%7D%7B2%7Dat%5E2%3D0%5Ctimes%203%2B%5Cfrac%7B1%7D%7B2%7D%5Ctimes%202%5Ctimes%203%5E2%3D9m)
We know that work done is given by
W = F s = 580×9 =5220 j
(c) Time is given as t = 3 sec
We know that power is given as
![P=\frac{W}{t}=\frac{5220}{3}=1740Watt](https://tex.z-dn.net/?f=P%3D%5Cfrac%7BW%7D%7Bt%7D%3D%5Cfrac%7B5220%7D%7B3%7D%3D1740Watt)
(d) Time t = 1.5 sec
So ![P=\frac{W}{t}=\frac{5220}{1.5}=3466.66Watt](https://tex.z-dn.net/?f=P%3D%5Cfrac%7BW%7D%7Bt%7D%3D%5Cfrac%7B5220%7D%7B1.5%7D%3D3466.66Watt)
A is the answer: A resistor, which converts some electrical energy to thermal.
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Hope this helps </span>
Different: The weak nuclear force is responsible for radioactive decay within an atom of a substance, while the electromagnetic force causes electrostatic force between charged particles.
Different: The weak force has a very small range of effectiveness (where the force can be felt) while the electromagnetic force has an infinite range.
Same: Both forces act within an nucleus, or on a nuclear level.
Same: The weak nuclear force is mediated by charged particles called bosons, and the electrostatic force is only present within charged objects
The last one may be a bit of a stretch but I hope this helped a bit!
0.29 m/s is the speed of this wave.
How can we determine a wave's speed?
Given: The wave's traveling wavelength is () = 35 cm
The wave's period (t) is 1.2 seconds.
The wave's frequency is 0.833 Hz.
We must ascertain a wave's wave speed.
Formula for wave speed is 35 x 0.833 (wavelength x frequency).
= 29.167 cm/sec
= 0.29 m/sec
As a result, the wave's speed is 0.29 m/s.
To learn more about wave refer : brainly.com/question/3148541
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