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Scrat [10]
3 years ago
14

What do you mean by MA of a lever is 3 , VR of a lever is 4 and efficiency of a machine is 60%​

Physics
1 answer:
Montano1993 [528]3 years ago
6 0
Explanation:V.R of a lever is 3 means effort distance of the lever is 3 times more than the effort distance of the load. ... Efficiency of a lever is 60% means 40% of the energy is wasted due to friction as no machine is Friction less.
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A 16 kg object cuts 4 km in 25 minutes, find the applied force on the object?
GenaCL600 [577]

Answer:

14min i think im not quite sure

Explanation:

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3 years ago
4. How long would it take for a water balloon to fall 39 m if we dropped it starting from rest down an
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Answer:

Around 2.8212 sec

Explanation:

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your vo=0

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8 0
3 years ago
A vector must always have both size and ..
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3 years ago
Two children, Ferdinand and Isabella, are playing with a water hose on a sunny summer day. Isabella is holding the hose in her h
mojhsa [17]

Answer:

Isabella will not be able to spray Ferdinand.

Explanation:

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h = ½gt²

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t² = 1/4.9

Take the square root of both side

t = √(1/4.9)

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Next, we shall determine the horizontal distance travelled by the water. This can be obtained as follow:

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s = 3.5 × 0.45

s = 1.58 m

Finally, we shall compare the distance travelled by the water and the position to which Ferdinand is located to see if they are the same or not. This is illustrated below:

Ferdinand's position = 10 m

Distance travelled by the water = 1.58 m

From the above, we can see that the position of the water (i.e 1.58 m) and that of Ferdinand (i.e 10 m) are not the same. Thus, Isabella will not be able to spray Ferdinand.

8 0
3 years ago
Hurricanes are least likely to form in which of the following?
Sholpan [36]
The best and most correct answer among the choices provided by the question is the second choice "Lake Michigan"


A hurricane<span> is a storm that occurs in the </span>Atlantic Ocean <span>and northeastern Pacific </span>Ocean<span>, a typhoon occurs in the northwestern Pacific </span>Ocean<span>, and a cyclone occurs in the south Pacific or Indian </span>Ocean<span>. Tropical cyclones can be categorized by intensity.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
3 0
4 years ago
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