A comet near the Sun whose orbit is ____ would never be near the Sun again
a. apogee
b. circular
c. elliptical
d. hyperbolic
e. radial
d
Physics & Space Science
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A current loop is oriented in three different positions relative to a uniform magnetic field. In position 1 the plane of the loop is perpendicular to the field lines. In positionS 2 and 3 the plane of the loop is parallel to the field as shown. The torque on the loop is maximum in
?
?
A. position 1. B. position 2. C. position 3 D. positions 2 and 3. E. all three positions.
Physics & Space Science
If the sum of the external forces exerted on an object is zero, then the sum of the external torques exerted on it must also be zero
A) True B) False
Physics & Space Science
A Carnot heat engine operates between 400 K and 500 K. Its efficiency is:
A. 20% B. 25% C. 44% D. 79% E. 100%
Physics & Space Science
What is magnetic declination?
Physics & Space Science