The symbol indicating the number of protons in a nucleus is N
a. True
b. False
Indicate whether the statement is true or false
False
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What parts of the galaxy are considered to make up the "spherical component"?
What will be an ideal response?
The Arecibo radio telescope is laid out like which optical telescope design?
A) prime focus reflector B) Newtonian reflector C) grazing incidence reflector D) Cassegrain reflector E) Coude reflector
A particle (q = 5.0 nC, m = 3.0 ?g) moves in a region where the magnetic field has components Bx = 2.0 mT, By = 3.0 mT, and Bz = ?4.0 mT. At an instant when the speed of the particle is 5.0 km/s and the direction of its velocity is 120° relative to the magnetic field, what is the magnitude of the acceleration of the particle?
a. 33 m/s2 b. 17 m/s2 c. 39 m/s2 d. 25 m/s2 e. 45 m/s2
A bicycle whose wheels have a radius of 66 cm is traveling at 2.0 m/s. If the wheels do not slip, what is the angular speed of the wheels?
What will be an ideal response?