The exchange particles for the weak force are very massive (about 100 times as massive as a proton). This would lead one to expect that the weak force would
A) act over a very long range.
B) be transmitted at the speed of light.
C) act over a very short range.
D) only act on very massive particles.
C
You might also like to view...
Two ideal Carnot heat engines have the same efficiency. One operates between 5.0 × 102 K and 3.0 × 102 K, and the other between 4.0 × 102 K and some lower temperature. What is the lower temperature?
A) 200 K B) 220 K C) 240 K D) 260 K E) 280 K
Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 m/s and just after is 3.5 m/s. If the ball is in contact with the floor for 0.050 s, what is the magnitude of the average force applied by the floor on the ball?
a. 60 N c. 30 N b. 133 N d. 3.5 N
In 1912, after studying a star cloud called the Small Magellanic Cloud, Henrietta Leavitt concluded that:
A) stars are eternal and unchanging. B) the brightest stars have the shortest pulsation periods. C) the Sun and Earth are near the edge of our Galaxy. D) there was a relationship between pulsation periods and luminosities of stars.
A metal block has a density of 5000 kg per cubic meter and a mass of 15,000 kg. What is its volume?
A) 0.33 cubic meters B) 3 cubic meters C) 5 cubic meters D) 15 cubic meters E) none of the above