When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can "disappear," and in its place there will be produced an electron and a positron, which both have mass. According to special relativity, this pair production is an example of __________
Fill in the blank(s) with correct word
the equivalence of mass and energy
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Red Rover, Red Rover, let Leslie come over. In this childhood game, you try to stop and catch a person who is running directly at you. Who would you rather pick?
A. Sean, who weighs 350 N and can run 5 m/s. B. Meihong, who weighs 250 N and can run 8 m/s. C. Deidra, who weighs 300 N and can run 3 m/s.
Atmospheric pressure does NOT correspond to approximately
A) 0.1 MPa. B) 1.0 × 102 N/m2. C) 2.2 × 103 lb/ft2. D) 2.4 × 102 oz/in2. E) 15. lb/in2.
An electric current through a tungsten filament maintains its temperature at 2800 K. Assume the tungsten filament behaves as an ideal radiator at that temperature
If the radiating area of the filament is 2.0 × 10-6 m2, at what rate does it radiate energy? (? = 5.670 × 10-8 W/m2 ? K4, Wien displacement law constant is 2.90 × 10-3 m ? K) A) 11.5 W B) 7.0 W C) 8.5 W D) 5.5 W E) 10 W
A 4.0-pC point charge is placed at the center of a hollow (inner radius = 2.0 cm, outer radius = 4.0 cm) conducting sphere which has a net charge of 4.0 pC. Determine the magnitude of the electric field at a point which is 6.0 cm from the point charge
a. 35 N/C b. 25 N/C c. 30 N/C d. 20 N/C e. 10 N/C