Two players are enjoying a steady volley in a game of ping-pong, in which the motion of the ball is repeated regularly. Is the motion of the ball simple harmonic motion?
What will be an ideal response?
No. The motion is periodic, but the forces that make the ball go back and forth are not related linearly to the distance from the average location of the ball.
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The radiation emitted from a star has a maximum intensity at a wavelength of 500 nm. What is the temperature of this star?
a. 6,000 K b. 5,000 K c. 1.5 × 10^9 K d. 500 K e. 10,000 K
An electron (m = 9.1 × 10^?31 kg) has a speed of 0.90c. What is the difference between its relativistic momentum and its non-relativistic momentum (in kg m/s)?
a. 4.3 × 10^?22 b. 3.2 × 10^?22 c. 5.4 × 10^?22 d. 6.5 × 10^?22 e. 2.5 × 10^?22
Two taut strings of identical mass per unit length are stretched with the same tension with their ends fixed, but one string is 0.330 cm longer than the other. Waves on these strings propagate at 34.0 m/s
The fundamental frequency of the shorter string is 258 Hz. What is the beat frequency when each string is vibrating at its fundamental frequency? A) 12.3 Hz B) 9.00 Hz C) 12.0 Hz D) 12.7 Hz E) 11.3 Hz
Consider the circuit below. Switch S is closed at t = 0
What is the voltage across the capacitor
C long after the switch is closed?