An element has 50 protons nd 90 neutrons. will the nucleus breakdown? why or why not?

How is a surf formed?

What is the longitude of the middle of romano swamp?

A student combine equal amounts of two solutions. One solution ha a pH of 2 and the other half had a pH of 12. Which would most likely be the resulting pH?

If the length of one side of a square is 12.0 m, what is the perimeter of the square?

Which of the following takes place in the combustion chamber of a gas turbine engine? A. A glow plug is used to add enough heat to the chamber for combustion to occur. B. Gaseous combustion products are cooled to a desired temperature. C.

You push a 50 kg wooden box across a wooden floor at a constant speed of 1.0 m/s. The coefficient of kinetic friction is 0.15. Now you double the force on the box. How long would it take for the velocity of the crate to double to 2.0 m/s?

A star is in hydrostatic equilibrium when the outward push of pressure due to core burning is exactly in balance with the inward pull of gravity.

How are mass and weight different? a. Mass is the space an object takes up and weight is the effect of gravity on mass. b. Mass is the amount of matter and weight is the effect of gravity on mass. c.

What were the discoveries of astronomers like Copernicus and Galileo?

A major obstacle to developing good human relations is that