Which would you most expect to be an unstable atom?

a carbon (C) atom with 6 protons and 6 neutrons

an iron (Fe) atom with 26 protons and 27 neutrons

a helium (He) atom with 2 protons and 2 neutrons

a curium (Cm) atom with 96 protons and 85 neutrons

Squaw Valley ski area in California claims that its lifts can move 49800 people per hour. If the average lift carries people about 190 m (vertically) higher, estimate the maximum total power needed. (Assume an average mass per person of 70 kg.) W

Carl makes the table below to determine the number of atoms of each element in the chemical formula 4Ca (ClO3) 2. What mistake did Carl make?

Which is a base? 1) Substance C is formed from the reaction of an acid and a base. 2) Substance A gives off H + ions that combine with OH - ions when dissolved in water.

Describe speed of light

Scientists believe the increase in disasters is due to a combination of natural and human-caused factors. List and describe at least one natural factor and one human-caused factor.

Which best explains the relationship between the speed of sound and the medium through which it passes?

g The magnetic force on a charged particle A. depends on the sign of the charge on the particle. B. depends on the velocity of the particle. C. depends on the magnetic field at the particle's instantaneous position. D.

How fast must a 1000 kg car be moving to have a kinetic energy of 1.0 kWh

Which of the following is used to measure weight? Newtons Liters Kilograms Meters

Intravenous infusions are often made under gravity. At what height should the bottle be placed so the liquid pressure is 700 mm-H2O?