Answer:I’m not sure but I think it is the last one
Explanation:
Answer:
(a) 145 N
(B) 40 N
(c) 10 ropes
Explanation:
Mechanical advantage, where and are input and output force respectively
Since MA is given as 10 and input force is 1450 N
Therefore, the mover must use a force of 145 N
(b)
Since also and the is given as 4 m then
(c)
Literally, we need 10 rope segments to support the piano since we utilize the mechanical advantage
Answer:
protects coastlines from storms and erosion
they are a source of food and new medicines
Explanation:
i asked my alexa
Answer:
The fossil record provides evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.
Explanation:
Answer:
ion
Explanation:
The atom then loses or gains a "negative" charge. These atoms are then called ions.
