Which element, represented by x, reacts with fluorine to produce the compound xf2? (1) aluminum (3) calcium (2) argon (4) sodium

An AC generator has 80 rectangular loops on its armature. Each loop is 12 cm long and 8 cm wide. The armature rotates at 1200 rpm about an axis parallel to the long side. If the loop rotates in a uniform magnetic field of 0.

Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the longest?

Planet happy is about 250,000 miles from one of its moons. If you travel at a speed of 6000miles per hour, how many weeks will it take you to get there?

What are the SI units for specific heat capacity

The greenhouse effect on which planet makes it the hottest planet in our solar system? A. Mars B. Mercury C. Venus D. Jupiter

our canisters contain helium gas. If all the canisters had the same amount of particles, which canister would have the fastest moving particles?

The acceleration due to gravity is

How does gravitational force and electric force compare?

There are two types of addiction, psychological and physical. A. True B. False

What two gases probably dominated precambrian earth's atmosphere?