Calculating Acceleration Acceleration
Initial
velocity
Final
velocity
Time to travel
0.25 m
Time to travel
0.50 m
* of
washers
ti
(s)
t2
(s)
a =(22- vy/(t2-t,)
(m/s)
(m/s)
(m/s)
2.23
3.13
0.19
1
0.11
0.28
2
0.13
0.36
2.61
1.92
The acceleration of the car with to washers added to the string would be

Wo audio speakers are placed on a vertical rail. speaker a is placed at head-level while speaker b is place at some variable height, \delta yδy, above speaker a. both speakers receive simultaneous input from a sine-wave generator so the speakers each produce a pure sinusoidal sound wave with a wavelength of 0.531 meters. calculate the lowest height that speaker b can be placed above speaker a to produce a minimum of sound heard by person standing \delta x = 7.86δx=7.86 meters directly in front of speaker a.

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection