In countries where there is very hot and very cold weather, should the gaps between the lengths of railway track be wider or narrower?

Which scientist is known for his work on dominant and recessive traits?

I had a problem solving for part b of this question: objects with masses of 110 kg and a 410 kg are separated by 0.380 m. (a) find the net gravitational force exerted by these objects on a 30.0-kg object placed midway between them.

What type of pressure is transmitted by fluids

Which of the following is NOT an advantage of using a wheel and axle? 1. It can increase speed at which something turns 2. It can reduce the speed at which something turns 3. It can reduce the amount of effort needed to turn something 4.

What is the length of an aluminum rod at 65 degrees celsius if its length is 15 degrees celsius is 1.2 meters

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

A protostar forms once the nebular cloud condenses and the core begins

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are