A sample of a material has 200 radioactive particles in it today. Your great-grandmother measured 400 radioactive particles in it 100 years ago. 100 years from today, how many radioactive particles will the sample have?

In grams, which is the most accurate description of the mass ratio of hydrogen to oxygen when they chemically combine to form water? A. 1:8 always B. 8:1 always C. 1:8 sometimes D. 8:1 sometimes

Give two disadvantage of hydroelectric power

Recall that in the equilibrium position, the upward force of the spring balances the force of gravity on the weight.

Chanel has some cotton candy that came in a cloudy shape. She wants to make it more dense. Which describes the candy before and after Chanel manipulated it?

A kid moving 3.78 m/s jumps on a slip & slide (uk=0.111). after sliding 5.00 m, what is his velocity?

What is a magnetic field and how does it interact with magnetic materials?

What is significant about holden sitting on the radiator?

Which of the following occurs in meiosis that does not occur in mitosis 1 fertilization occur 2 body cells are made 3 sex cells are made 4 cell division occurs

A hot air balloon is hovering in the air when it drops a 40 Kg food package to some lost golfers. If the package is dropped from an altitude of 500 m and air resistance can be neglected, how fast is the package moving when it hits the ground?

you often hear people particularly TV announcers talk about "high rate of speed" what do you think they mean according to the specifics of physics definitions what are they really saying