A senstive computer is being transported in a boxcar. Accelerometer measurements tell us that at its normal speed, the foremost component of the boxcar's vertical acceleration is 10 m/s^2 at a frequency of 30 rad/sec. The crate in which the vase is being transported is tied to the floor of the boxcar. What is the required frequency ratio of an isolator with a damping ratio of 0.1 such that the acceleration amplitude of the 15 kg vase is less than 0.5 m/s^2

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?