To reduce the danger of self-induction
A) simply pull the circuit plug.
B) turn off the switch to the circuit.
C) either of these
D) neither of these
Answer: B
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The shortest distance between two points in flat Euclidean space is a
A) straight line. B) geodesic. C) neither of these
A slice of bread contains about 125 kcal. If specific heat of a person were 1.00 kcal/kg/°C, by how many °C would the temperature of a 65.0-kg person increase if all the energy in the bread were converted to heat?
a. 3.85°C b. 0.96°C c. 1.92°C d. 2.40°C e. 1.44°C
A wheel accelerates with a constant angular acceleration of 4.5 rad/s2 from an initial angular speed of 1.0 rad/s. (a) Through what angle does the wheel turn in the first 2.0 s, and (b) what is its angular speed at that time?
What will be an ideal response?
A flywheel with a moment of inertia 6.00 × 106 kg?m2 is spinning with an angular speed of 120 rev/s about a vertical axis while it sits at the north pole. The disk is turning counterclockwise when viewed from above
The disk is brought to a rest. Treat the earth as a uniform sphere with a mass 5.976 × 1024 kg and a radius 6.374 × 106 m. (a) What will be the magnitude of the change in angular momentum of the earth? (b) What will be the change in length of a day on Earth?