Answer:
The vector has a magnitude of 33.86 units and a direction of 121.64°.
Explanation:
To find the magnitude, you use the Pitagorean theorem:
In order to find the direction, you can use trigonometry. You have to keep in mind, that as the y component of the vector is positive and the x component is negative, the vector must have an angle between 90 and 180°, or in the second quadrant of the plane.:
° or, 58.36° in the second quadrant
The answer to this question is False
Answer:
a) Θ = ω₀*t + ½αt² To complete first revolution 2π rads = 0*t + ½αt² and to complete the first and second combined 4π rads = 0*t + ½α(t+0.810s)² Divide second by first: 2 = (t + 0.810s)² / t² This is quadratic in t and has roots at t = -0.336 s ← ignore and t = 1.96 s ◄ b) Use either equation from above: 2π rads = 0*t + ½α(1.96s)² α = 3.27 rad/s² ◄ Hope this helps!
Explanation:
Answer:
1.4584 kg
Explanation:
Time period of a physical pendulum is given by 
Here f=0.290 so 
Mass =2.40 kg
d=0.300 m
g =9.8 m
So 
kg-
So the moment of inertia of the pendulum about the pivot point will be 1.4584 kg-
<span>C. It is the difference in electrical potential energy between two places in an electric field.</span>
