Answer:
Acceleration = a = -1.94 m/s^2
Explanation:
Weight of the bundle = W = mg
m = W/g = 473/9.8
m = 48.26 kg
There are two forces acting on the bundle such as tension in the upward direction and weight in the downward direction. So, according to newton’s second law of motion:
Sum of forces = ma
T - W = ma
a = (T – W)/m
a = (379 - 473)/48.26
a = -1.94 m/s^2
Negative sign shows that the acceleration is in the downward direction.
Answer:
Explanation:
Given that the radius of the pipe, r =0.0112 m
So, the area of the cross-section, 
Speed of water in the pipe, v=3.25 m/s
Volume flow rate =
Hence, the volume flow rate is
Answer:
B
Explaination:
Radiation refers to the emission of energy in rays or waves. Heat moves through space as energy waves.
Answer:
ya I just looked it up on Google
Answer:
Explanation:
An information contains
25Hz and 75Hz sine wave
Sample frequency is 500Hz
The analogy signal are generally
y(t) = Asin(2πx/λ - wt), w=2πf
y1(t)=Asin(2πx/λ - wt)
y1(t)=Asin(2πx/λ - 2π•25t)
y1(t)=Asin(2πx/λ - 50πt)
Similarly
y2(t)=Asin(2πx/λ - 150πt)
Using Nyquist theorem
Nyquist Theorem states that in order to adequately reproduce a signal it should be periodically sampled at a rate that is 2 times the highest frequency you wish to record.
From sampling
f(nyquist)=f(sample)/2
f(nyquist)=500/2
f(nyquist)=250Hz
From signal
The highest frequency is 150Hz
F(nyquist) = 2×F(highest)
f(nyquist)= 2×150
f(nyquist)= 300Hz
Sample per frequency Ns is given as
Ns=F(sample)/F(highest signal)
Ns=500/150
Ns=3.33sample/period
This is above nyquist rate of 2sample/period
So signal below 300Hz reproduced without aliasing.
The highest resulting frequency is 300Hz
