Zirconium has an atomic number of 40. how many neutrons are there in an isotope of zirconium-92?

when the velocity of a mass on a spring is zero, the acceleration is at a maximum .

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

-4 on

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle