Denise is conducting a physics experiment to measure the acceleration of a falling object when it slows down and comes to a stop. she drops a wooden block with a mass of 0.5 kilograms on a sensor on the floor. the sensor measures the force of the impact as 4.9 newtons. what’s the acceleration of the wooden block when it hits the sensor? use f = ma.
a.
2.45 m/s2
b.
4.4 m/s2
c.
5.4 m/s2
d.
9.8 m/s2

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.

What should the power status of a circuit be when measuring resistance with an ohmmeter?

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon