Translational motion is characterized by
A) motion that carries a molecule from one place to another.
B) the motion used in measuring temperature.
C) both of these
D) neither of these
Answer: C
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Force on a Moving Charge: A geophysicist measures the magnetic force on a proton that is moving vertically downward at a point 1.996 km/s at the earth's equator. At that location, the earth's magnetic magnetic field is horizontal and has a strength of 0.40 × 10-4 T. What are the magnitude and direction of the force she will measure? (e = 1.60 × 10-19 C)
What will be an ideal response?
Two parallel and coaxial current loops of radius a are placed a distance 2L apart. When you look along the axis at the loops, the current in one is clockwise, and counterclockwise in the other. At a point on the axis half way between the loops the magnetic field in T has magnitude
A.
B.
.C.
.D.
.E.
.Express an angle of 450° in radians
What will be an ideal response?
A 10-g bullet moving horizontally with a speed of 2.0 km/s strikes and passes through a 4.0-kg block moving with a speed of 4.2 m/s in the opposite direction on a horizontal frictionless surface. If the block is brought to rest by the collision, what is the kinetic energy of the bullet as it emerges from the block?
a. 0.51 kJ b. 0.29 kJ c. 0.80 kJ d. 0.13 kJ e. 20 kJ