You want to estimate the height of a cathedral ceiling. You note that a pendulum extending from the ceiling almost touches the floor and tat its pwriod is 12.0s. How tall is the room.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

What type of nuclear decay causes the atomic number of an element to increase by 1?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?