The door is 1980 mm high, 760 mm wide, 5 cm thick, and the density of steel is 7.85 gcm3. what is the mass of the door? 3 . 99 o 76 ao-0s * 7.35 o 9/ h 11. given that the heat capacity of steel is 502 jkg'k-1, determine the amount of energy required to reach the melting point of steel at 3700 c i. 09 12. given that the latent heat of fusion of steel is 251 kjkg1, determine the energy required to change the steel from the solid state to the liquid state at 3700 c 0-14 x10

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table

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.