What is the radius of curvature of the path of a 3.0-keV proton in a perpendicular magnetic field of magnitude 0.80 T?
A. 9.9 mm
B. 1.1 cm
C. 1.3 cm
D. 1.4 cm
E. 7.6 mm
Answer: A
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There is a temperature at which the reading on the Kelvin scale is numerically:
A. equal to that on the Celsius scale B. lower than that on the Celsius scale C. equal to that on the Fahrenheit scale D. less than zero E. none of the above
In a parallel electric circuit, the voltage
a) is different across each branch of the circuit. b) is the same across all circuit components. c) must vary with time and is called ac. d) must never become negative.
Discuss whether it is possible to have a displacement whose magnitude is greater than the distance traveled
What will be an ideal response?
A 10.0-kg shell is traveling horizontally to the right at 25.0 m/s relative to the ground when it explodes into two fragments, one of mass 3.00 kg and the other of mass 7.00 kg
The lighter fragment goes directly forward, and the explosion releases 1.50 × 103 J of mechanical energy to the fragments. Find the magnitude and direction of the velocity of the heavier fragment relative to the ground just after the explosion. Ignore the effect of any ejected gases.