Consider an input signal containing frequencies 25 Hz, 45 Hz, 75 Hz and 130 Hz. At what minimum rate must it be sampled so that the waveform can accurately be reconstructed from the samples?a. 130 Hzb. 25 Hz c. 260 Hz d. 650 Hz

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

The necleus of an atom is made up of what subatomic particles?