If a pillow has a mass of 200g and a volume of 10l what is the density

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these