Chemistry, 25.09.2019 04:30, butterscotchsjoqsvoz

lifting a bale of cotton is no easy task. farmer jones wanted to store the cotton in the loft of his barn but he could not budge the bale. he consulted the high school's science teacher for . she suggested a simple machine.
farmer jones' options included an inclined plane, a fixed pulley, a block, and tackle, and a lever. if he had to lift the bale of cotton to a height of fifteen feet, which would be the most practical solution?
a) lever
b) screw
c) inclined plane
d) block and tackle (pulley)

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 03:30, asianaenaeh

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

Answers: 1

continue

Chemistry, 22.06.2019 15:20, Tringirl233

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

Answers: 3

continue

Chemistry, 22.06.2019 23:00, edgar504xx

What is the solubility-product constant of barium sulfate, baso4, if a saturated solution is 1.03 ´ 10-5 m?

Answers: 3

continue

Chemistry, 23.06.2019 04:31, cassiuspricerules

What is the amount of energy for a photon that has a 125 cm wavelength