A 0.20-kg mass is oscillating on a spring over a horizontal, frictionless surface. When it is at a displacement of 2.6 cm from equilibrium, it has a kinetic energy of 2.7 J and a spring potential energy of 2.2 J. What is the maximum speed of the mass during its oscillation?
a. 3.7 m/s
c. 6.0 m/s
b. 4.7 m/s
d. 7.0 m/s
D
You might also like to view...
The capacitive reactance of an RLC circuit is 64
If the frequency is doubled, what is the new capacitive reactance?
A. 18
B. 64
C. 32
D. 8.0
E. 4.0
In pre-Copernican astronomy, it was almost universally believed that
a. the planets traveled in elliptical orbits about the Earth. b. the center of the universe was the Sun with the Milky Way representing other distant planets. c. the Sun was at the center of the universe. d. the Earth was at the center of the universe. e. None of the above was believed.
RLC Circuits: The figure shows a series ac circuit. The inductor has a reactance of 80 ? and an inductance of 220 mH. A 30-? resistor and a capacitor whose reactance is 80 ? are also in the circuit, and the rms current in the circuit is 2.0 A. What is the capacitance of the capacitor?
A. 34 ?F B. 37 ?F C. 32 ?F D. 30 ?F E. 27 ?F
A baseball player is running to second base at 5.03 m/s. When he is 4.80 m from the plate he goes into a slide. The coefficient of kinetic friction between the player and the ground is 0.180. What is his speed when he reaches the plate?
A) 4.47 m/s B) 2.89 m/s C) 1.96 m/s D) 2.56 m/s E) He stops before reaching the plate.