If you toss a textbook into the air, rotating it each time about one of the three axes perpendicular to it, you will find that it will not rotate smoothly about one of those axes. (Try placing a strong rubber band around the book before the toss so that it will stay closed.) The book’s rotation is stable about those axes having the largest and smallest moments of inertia, but unstable about the axis of intermediate moment. Try this on your own to find the axis that has this intermediate moment of inertia.
If you toss a textbook into the air, rotating it each time about one of the three axes perpendicular to it, you will find that it will not rotate smoothly about one of those axes. (Try placing a strong rubber band around the book before the toss so that it will stay closed.) The book’s rotation is stable about those axes having the largest and smallest moments of inertia, but unstable about the axis of intermediate moment. Try this on your own to find the axis that has this intermediate moment of inertia.
If you toss a textbook into the air, rotating it each time about one of the three axes perpendicular to it, you will find that it will not rotate smoothly about one of those axes. (Try placing a strong rubber band around the book before the toss so that it will stay closed.) The book’s rotation is stable about those axes having the largest and smallest moments of inertia, but unstable about the axis of intermediate moment. Try this on your own to find the axis that has this intermediate moment of inertia.
Two boxes of fruit on a frictionless horizontal surface are connected by a light string as in the figure below, where m₁ = 11 kg and m₂ = 25 kg. A force of F = 80 N is applied to the 25-kg
box.
mq
m1
Applies
T
Peaches
i
(a) Determine the acceleration of each box and the tension in the string.
acceleration of m₁
acceleration of m₂
tension in the string
m/s²
m/s²
N
(b) Repeat the problem for the case where the coefficient of kinetic friction between each box and the surface is 0.10.
acceleration of m₁
acceleration of m₂
tension in the string
m/s²
m/s2
N
All correct but t1 and t2 from part A
Three long, straight wires are mounted on the vertices of an equilateral triangle as shown in the figure. The wires carry
currents of I₁ = 3.50 A, I2 = 5.50 A, and I3 = 8.50 A. Each side of the triangle has a length of 34.0 cm, and the point (A)
is located half way between (11) and (12) along one of the sides. Find the magnitude of the magnetic field at point (A).
Solve in Teslas (T).
I₁
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.