A force of 60 N is applied to an object which causes it to accelerate at 4 m/s? What is the weight of the object on Earth approximately? O 0.67 kg
0 150 N
0 6.67 N
O 4.0 kg
(Answer choices listed)

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.

Abanked road comer of radius 146 m is to be constructed. if the comer is designed for vehicles moving with a speed of 20.0 m/s, what should the banking angle be, in units of degrees?

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?