A body is oscillating up and down at the end of a spring. Let's consider when the body is at the top of its up and down motion. A heavy truck hits a small car. At any given time during the impact,
a. the force the truck exerts on the car is larger than the force the car exerts on the truck
b. the force the truck exerts on the car is smaller than the force the car exerts on the truck
c. the force the truck exerts on the car is equal to the force the car exerts on the truck
d. the only force present is the force of the truck on the car
C
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In the weak interaction in the decay of the neutron, what happens to the W- particle produced in the process?
A. It becomes an electron. B. It becomes a neutrino. C. It becomes an electron and an electron neutrino. D. It becomes an electron and an electron antineutrino. E. Nothing; it stays a W-particle.
A hollow cylindrical (inner radius = 1.0 mm, outer radius = 3.0 mm) conductor carries a current of 80 A parallel to its axis. This current is uniformly distributed over a cross section of the conductor. Determine the magnitude of the magnetic field at a point that is 2.0 mm from the axis of the conductor.
A. 8.0 mT B. 3.0 mT C. 5.3 mT D. 16 mT E. 1.2 mT
Suppose a 0.45-kg mass on a spring-loaded gun that has been compressed 0.10 m has elastic potential energy of 1.50 J. How high above the spring's equilibrium point can the gun fire the mass if the gun is fired straight up?
a. 0.34 m b. 0.58 m c. 0.24 m d. 3.2 m e. 33 m
A 75.0-kg swimmer dives horizontally off a 465-kg raft initially at rest. If the diver's speed immediately after leaving the raft is 5.00 m/s, what is the corresponding raft speed?
a. 31.0 m/s b. 375 m/s c. 0.806 m/s d. 1.24 m/s e. 5.00 m/s