A mass is vibrating at the end of a spring of force constant 375 N/m. The figure below (Figure 1) shows a graph of its position x as a function of time t. .At what times is the mass not moving? Express your answers in seconds, separated by commas, to two significant figures. How much energy did this system originally contain? Express your answer in joules to two significant figures. How much energy did the system lose between t1 = 1.0 s and t2 = 2.0 s? Express your answer in joules to two significant figures.

a person with a mass of 106kg has a weight of 1060n

0.19 m/s and 0.45 m/s

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.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.