What is the theory of plate tectonics?

The scale in April's bathroom reads her mass as being 45 kg. However, the label on the side of the box the scale came in says (in fine print) that it has a 3.0% uncertainty. What is the uncertainty in the scale, in kg?

The length of a retanle is twice the width plus 10. if the perimenter of the rectangle must be 200 inches what is the maimumarea of the rectange?

A solid nonconducting sphere of radius R carries a uniform charge density throughout its volume. At a radial distance r1 = R/4 from the center, the electric field has a magnitude E0.

What does the amount of inertia in an object depend on

The specific heat of co2 ( g. is 0.840 j/g °c and the specific heat of caco3 ( g. is 0.820 j/g ° c. if 1.00 gram of each substance starts at the same temperature and absorbs 1.00 x 102 j of heat.

A cyclist is riding his bike at a constant speed of S m/s, and experiences a frictional force between the bike and sidewalk of 100 N.

If a magnet is cut in paris what will be its north and south pole

How does the addition of sodium carbonate affect the cost of producing glass?

You strike a tuning fork. explain how the fork produces sound waves that you can hear.

If a car is traveling at an average speed of 60 kilometers per hour, how long does it take to travel 12 kilometers?