Where do you weigh more: at the bottom of death valley or atop one of the peaks of the sierra nevada? why?

A rope is stretched to a distance of 10 meters, and a single pulse is generated at one end. The time required for the wave to reach the other end of the rope was 2.0 s. What is the velocity of this pulse?

Convert the following 3000m/s to km/min.

How to make a curtains without a sewing machine?

Given the relatively modest number of calories burned by anything but the most vigorous activities, why can people consume over 2,000 kilocalories a day, yet maintain a healthy body weight?

The weight of an objects can be calculated by multiplying mass by

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?

If many household substances classify as acids or bases what is the ph scale