<span>A prepositional phrase modifies a word and relates that word to the preposition's object. </span>
Answer:
MA of lever is 3 means that the applied force can lift 3 times heavier load using that machine.
VR of a lever is 4 means the effort has to move 4 times more distance than that of load distance to lift any load up to certain height.
efficiency of 60% means that 40% of energy is wested due to friction, heat energy.
Answer:
B
Explanation:
Where are your classmates?
<span>I have described myself as always having been imbued with a fervent longing to penetrate the secrets of nature. Wealth was an inferior object, but what glory would attend the discovery if I could banish disease from the human frame and render man invulnerable to any but a violent death!
These lines seem ambitious, The second sentence more so than the first.
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