How many electrons are in the element that comes just before platinum in the periodic table?

What is internal energy?

A force of 70n is applied to a 7kg block that was at rest. the surface is flat and frictionless. how far did the block travel in 10s

How can you connect four of them to produce an equivalent resistance of 0.25 kω?

Which part of earths interior is made mostly of nickel and iron and has liquid and solid parts?

Describing the Universe during the Big Bang Which statements describe some of the original ideas proposed about the universe during the big bang? Check all that apply. The universe exploded. The universe was opaque. The universe was one second old.

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?

The slope of a velocity time graph over any interval of time gives the during that interval