Which of the following sound frequencies lie(s) outside the audible range?
a. 14 Hz
b. 11 kHz
c. 2700 Hz
d. All of these
a
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Angular Quantities: The sun subtends an angle of 0.00928 rad when viewed from the surface of the earth, and its distance from Earth is 1.5 × 1011 m. What is the diameter of the sun?
Fill in the blank(s) with the appropriate word(s).
Graphical Analysis: The graph in the figure shows the position of a particle as a function of time as it travels along the x-axis.(a) What is the average speed of the particle between t = 2.0 s and t = 4.0 s?(b) What is the average velocity of the particle between t = 2.0 s and t = 4.0 s?
What will be an ideal response?
A car traveling at 22 m/s comes to an abrupt halt in 0.1 second when it hits a tree. What is the deceleration of the car?
A) 110 m/s2 B) 220 m/s2 C) 800 m/s2 D) 880 m/s2 E) need more information
What is the half-life of a radioactive element?
a. Half the amount of time it takes the element to decay. b. The amount of time in which half the quantity of the element will decay. c. One-half curie of the element. d. The inverse of the number of decays per second from a sample, expressed in units of time. e. Half of the amount of the element needed for decay to proceed.