Answer:
2.5 Hz
Explanation:
3.0m/s / 1.2 m=2.5 1/s=2/5 Hz
F = 600 N, the applied force
a = 0.08 m/s², the acceleration
t = 1 min = 60 s, the duration
Calculate the distance traveled.
s = (1/2)at²
= 0.5*(0.08 m/s²)*(60 s)²
= 144 m
Because the force remains constant, the work done is
W = f*s
= (600 N)*(144 m)
= 86400 J
The average power is
Pavg = (86400 J)/(60 s) = 1440 W
Answer: 1440 W
Electromagnetic radiation in order of increasing (lowest to highest) frequency is Radio waves < Green visible light < UV radiation.
<h3>What is Frequency?</h3>
This is defined as the rate at which something occurs or is repeated over a particular period of time. The unit of frequency is referred to as Hertz.
Electromagnetic radiations with increasing frequency can be seen below:
Radio waves, microwaves, infrared waves, visible light, ultraviolet radiations, X rays, γ rays.
Read more about Frequency here brainly.com/question/254161
Answer:
a)
125.6 rad/s
b)
25.12 rad/s²
Explanation:
a)
t = time required by the fan to get up to final operating speed = 5 sec
w = final operating rotational speed = 1200 rpm
we know that :
1 revolution = 2π rad
1 min = 60 sec
w = ![1200\frac{rev}{min}\frac{2\pi rad}{1 rev}\frac{1 min}{60 sec}](https://tex.z-dn.net/?f=1200%5Cfrac%7Brev%7D%7Bmin%7D%5Cfrac%7B2%5Cpi%20rad%7D%7B1%20rev%7D%5Cfrac%7B1%20min%7D%7B60%20sec%7D)
w = ![\frac{1200\times 2\pi }{60}\frac{rad}{s}](https://tex.z-dn.net/?f=%5Cfrac%7B1200%5Ctimes%202%5Cpi%20%7D%7B60%7D%5Cfrac%7Brad%7D%7Bs%7D)
w = 125.6 rad/s
b)
w₀ = initial angular speed = 0 rad/s
α = angular acceleration
using the equation
w = w₀ + α t
125.6 = 0 + α (5)
α = 25.12 rad/s²
Answer: 0.002 newtons
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Work Shown:
I'm assuming you meant to write "at 20 m/s^2" at the end. If so, then,
0.10 grams = 0.10/1000 = 0.0001 kg
m = 0.0001 kg = mass
a = 20 m/s^2 = acceleration
F = ma .... newton's second law
F = 0.0001*20
F = 0.002
The force required is 0.002 newtons