Ablock of mass m = 5.84 kg is attached to a spring with spring constant k = 1542 n/m and rests on a frictionless surface. the block is pulled, stretching the spring a distance of 0.145 m, and is held still. the block is then released and moves in simple harmonic motion about the equilibrium position. (assume that the block is stretched in the positive direction.) a) what is the frequency of this oscillation? hz (b) where is the block located 3.24 s after it is released? (give the displacement from the equilibrium. include the sign of the value in your answer) (c) what is the velocity of the mass at that time? (indicate the direction with the sign of your answer.) m/s

Use the frequency histogram to complete the following parts. ​(a) identify the class with the​ greatest, and the class with the​ least, relative frequency. ​(b) estimate the greatest and least relative frequencies. ​(c) describe any patterns with the data. female fibula lengths 30.5 31.5 32.5 33.5 34.5 35.5 36.5 37.5 38.5 39.5 0 0.05 0.1 0.15 0.2 0.25 length (in centimeters) relative frequency a histogram titled "female fibula lengths" has a horizontal axis labeled "length in centimeters" from 30.5 to 39.5 in increments of 1 and a vertical axis labeled "relative frequency" from 0 to 0.25 in increments of 0.05. the histogram contains vertical bars of width 1, where one vertical bar is centered over each of the horizontal axis tick marks. the approximate heights of the vertical bars are listed as follows, where the label is listed first and the approximate height is listed second: 30.5, 0.02; 31.5, 0.04; 32.5, 0.05; 33.5, 0.13; 34.5, 0.22; 35.5, 0.25; 36.5, 0.13; 37.5, 0.06; 38.5, 0.09; 39.5, 0.01. ​(a) the class with the greatest relative frequency is nothing to nothing centimeters. ​(type integers or decimals. do not round. use ascending​ order.)

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

What are similarities and differences of reflection, refraction, diffraction and absorption?