Answer:
3.18 Nm
Explanation:
Given that:
Radius (r) = 15cm = 15/100 = 0.15m
θ = 45°
Applied force (F) = 30 N
The Torque can be obtained using the relation :
T = rF * sinθ
T = 0.15 * 30 * sin(45)
T = 0.15 * 30 * 0.7071067
T = 3.18198015
T = 3.18 Nm
Answer:
Explanation:
mass per unit length ρ = .100 / 1.65 = .0606 . kg /m
length of wire L = 1.65 m
For fundamental frequency , the expression is as follows
n =
L = 1.65 , T = 16 n and m = .0606
n =
= 4.9 /s .
This is fundamental frequency .
other mode of vibration ( first three ) will be as follows
4.9 x 2 = 9.8 /s ,
4.9 x 3 = 14.7 /s .
Answer:
h = 104.13 m
Explanation:
Given that,
Horizontal velocity of the car, v = 13 m/s
It hits the ground 60 m from the shoreline
We need to find the height of the cliff. Let t be the time of fall. We can find it as follows :
So, the time of fall is 4.61 seconds.
Let h is the height of the cilff. Using second equation of motion to find it as follows :
So, the height of the cliff is 104.13 m.
30*3*60=5400
300*2=600
1500*3=4500
200*10*60=120000
the computer uses more energy.
(you can multiply all results by 60 to get the energy in J, but it's not necessary for the comparison)