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Unformatted text preview: to probe the fundamental interactions at tiny distance scales The 100ton Collider Detector at Fermilab is used to analyze the debris from the collisions of protons and antiprotons moving at nearly the speed of light In the absence of interactions, the speed of an object will (A) increase. (B) decrease. (C) remain the same. Newton’s First Law: Any object that does not interact with something else moves with a constant speed in a fixed direction . (C1T.9) A bicyclist rounds a curve at a constant speed. The bicyclist’s velocity is also constant. (T) True (F) False Suppose an object moves with a constant speed in a fixed direction. Can we conclude that it is not interacting with something else? A rock has a density of 2.85 g/cm 3 . Express the density of the rock in units of kg/m 3 . A particle travels at a speed of 60 kilometers per hour (60 km/hr). What is the particle’s speed in meters per second (m/s)? s m 7 . 16 s 3600 hr 1 km 1 m 1000 hr km 60 = × × 3 3 3 m kg 2850 m 1 cm 100 g 1000 kg 1 cm g 85 . 2 = × ×...
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 Spring '08
 DeCarlo
 Physics, Particle Physics, Friction, Gravity, Fundamental interaction, Fundamental physics concepts, Weak interaction, constant speed, longrange gravitational interaction

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