Velocity Addition: A tracking station on Earth observes a rocket move away at 0.370c. This rocket is designed to launch a projectile at 0.505c relative to the rocket. What speed (in terms of the speed of light) does the tracking station measure for the projectile if it is fired (a) straight ahead of the rocket or (b) backward from the rocket?
What will be an ideal response?
(a) 0.737c (b) 0.166c
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What is the primary difference between an ideal emf device and a real emf device?
a) The electric potential of a real emf device is limited. b) The resistance of a real emf device is finite, but the resistance of an ideal emf device is assumed to be infinite. c) A real emf device can carry an electric current, but an ideal emf device does not. d) A real emf device has an internal resistance, but an ideal emf device does not.
A resistor and an ideal inductor are connected in series to an ideal battery having a constant terminal voltage V0. At the moment contact is made with the battery,
(a) the voltage across the resistor is A) V0. B) V0/e. C) V0/2. D) zero. (b) the voltage across the inductor is A) V0. B) V0/e. C) V0/2. D) zero. What will be an ideal response?
Neon atoms in a glass tube can be excited
A) once per atom. B) repeatedly. C) by infrared light.
A turbine blade rotates with angular velocity ?(t) = 2.00 rad/s- 2.1.00 rad/s3 t2. What is the angular acceleration of the blade at t = 9.10 s?
A) -38.2 rad/s2 B) -19.1 rad/s2 C) -86.0 rad/s2 D) -36.2 rad/s2 E) -172 rad/s2