Answer: 808.24625J
Explanation:
Moment of inertia is the physical quantity, that expresses the tendency of a body to resist angular acceleration. It determines the Torque needed for a desired angular acceleration, about a rotational axis
I = 1/2mr²
I = 1/2(W/g)r²
I = 1/2 * 694/9.8 * 1.96²
I = 1/2 * 272.048
I = 136.024kgm²
Also,
Iα = Fr
136.024α = 61.5*1.96
136.024α = 120.54
α = 120.54/136.024
α = 0.8862 rad/s²
Angular Velocity,
ω = αt
ω = 0.8862*3.89
ω = 3.4473 rad/s
K = 1/2Iω²
K = 1/2*136.024*3.4473²
K = 1/2 * 1616.4925
K = 808.24625J
Answer: 1 inclined plane and box mover trolley
2 screw and drill
3 The axle, or rod and wheels
4 slides, ramps, and hills.
5 yes because they help the ball move quicker
6 i am not sure about this one)
Explanation:i do not know i am guessing
Arete is a sharp ridge separating two cirques or glacial vallies found in mountain regions. It is French for fishbone or the backbone of a fish, spine
Answer:
Maximum speed ( v ) = 10.4 m/s (Approx)
Explanation:
Given:
Amplitude A = 15.0 cm = 0.15 m
Frequency f = 11.0 cycles/s (Hz)
Find:
Maximum speed ( v )
Computation:
Angular frequency = 2πf
Angular frequency = 2π(11)
Angular frequency = 69.14
Maximum speed ( v ) = WA
Maximum speed ( v ) = 69.14 x 0.15
Maximum speed ( v ) = 10.371
Maximum speed ( v ) = 10.4 m/s (Approx)
Answer:
The rate of current change in the circuit is
Explanation:
From the question we are told that
The capacitor has a value
The inductor has a value
The capacitors voltage is at t = 0s
The new capacitor voltage is
Generally when the switch is closed the potential across the inductor is equal to the potential across the capacitor
So for the inductor
rate of current change is given as
Where is the voltage across the inductor.
Substituting value