Answer:
<em>0.981 rad/sec^2</em>
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Explanation:
mass that pulls on string = 5 kg
weight due to mass = 5 x 9.81 = 49.05 N
radius of rod = 0.1 m
torque produced by this force on the rod = force x radius
torque = 49.05 x 0.1 = 4.905 N-m
mass of disk = 125 kg
radius of disk = 0.2 m
moment of inertia of the disk I = m
I = 125 x 
= 5 kg-m^2
from the equation, <em>T = Iα</em>
where T is torque
I is moment of inertia
α is angular acceleration
imputing values,
4.905 = 5α
α = 4.905/5 = <em>0.981 rad/sec^2</em>
Answer:
5hz
Explanation:
the equation for frequency is velocity/wavelength
50 divided by 10 is 5
the frequency of the wave is 5hz
Answer:
Explanation:
Recall that scientific notation involves expressing the number in powers of ten, and using a multiplicative factor whose value is larger than or equal to 1 (one) and strictly smaller than 10 in the form:
and with n an integer value.
in our case, notice that 0.00016 = 16 / 100000 = 1.6 / 10000
and that denominator can be expressed as: 10^4, and can also be brought to the numerator as a negative power of ten:
1.6 / 10000 = 1.6 / 10^4 = 1.6 * 10^(-4)
When person is observing destructive interference at 0.20 m distance from the equidistant position then we can say that path difference must be equal to half of the wavelength
now we will have
now we know that
y = 0.20 m
d = 2.4 m
L = 10 m
now here we have
now frequency of wave is given as
Answer:
the resultant velocity is Zero
Explanation:
by the rule of adding and subtracting factors, we know that; when the force acting on an object is from east & north we add and with forces acting from South & west we minus.
Therefore:
1) List the forces down:
the 100m/s acting west is (-) while
the other 100m/s is acting in easterly direction
so it is (+)
2) Add the forces:
-100+100=0
therefore the answer is 0m/s for the the resultant velocity
hope I'm right
