You hear a sound coming from a speaker 60m away at 90 dB. The speaker is producing
how many
Watts of sound power. Round to the nearest ones place.

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2

Which system of units is used by only a small number of countries in the world, including the u.s.

You can melt ice by applying pressure because the solid/liquid line has a slope.