PLEASE HELP Which detail from “Thomas Edison: The Master of Improvement” explains why Swan’s lightbulb failed to be successful?

“He developed and demonstrated the first small lightbulb in 1878.”
“Its glow was produced by electricity passing through a filament, or tiny piece of material.”
“The inside of the glass bulb was a vacuum. In other words, it was oxygen-free.”
“[The] bulb did not glow for long, however. It produced light for only thirteen hours.”

If you want to change from landscape orientation to portrait orientation, what would you do? turn the camera around. flip the camera over. turn the camera 90 degrees. turn the camera 360 degrees.

Read the excerpt from suffragists' "great demand" banner. in 1917, more than one thousand women stood before the white house in a cold, pouring rain, holding silent vigil to demand a constitutional amendment to extend the vote to them. their quest to be enfranchised by law was known at the time as the great demand. the smithsonian's great demand banner, as it came to be called, declares in bold words and style the determination of the women who made and carried it. their campaign on behalf of women sought to move america one step closer to fulfilling the nation's long-deferred promise of equality under the law. which statements about this excerpt are correct? check all that apply.

Which event is an example of a hortatory, or encouraging, technique? a. a hefty fine issued for driving more than 10 miles per hour over the speed limit b. a government program that provides citizens with new job-training opportunities c. a tax imposed on people who buy motorboats with large, loud engines d. a sign in a restaurant that states “think before you smoke—secondhand smoke kills” e. a tax credit that citizens purchase electric or hybrid vehicles