Always use significant figure rules. remember that these rules apply to all numbers that are measurements. light travels approximately 982,080,000 ft/s, and one year has approximately 32,000,000 seconds. a light year is the distance light travels in one year. calculate the distance of one light year in inches. 2.6 x 1015 in 9.310 in 1.0 x 1016 in 3.8 x 1017 in

3.8 x 10¹⁷ in

Explanation:

Light speed= 982,080,000 ft/s

year(time)= 32,000,000 seconds

converting ft/s to in/s for the speed of light:

1ft/s = 12 in/s

982,080,000 ft/s x 12in/s = 11,784,960,000 in/s ( speed of light in inches)

using the standard formula for speed:

V=

Distance( inches)= V (speed in/s) x Time (seconds)

Distance = 11,784,960,000 x 32,000,000

Distance≅ 3.8 x 10¹⁷ in

object 2 because all the other ones are wrong

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.