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Vilka [71]
3 years ago
15

Is mechanical advantage always greater than one?

Physics
1 answer:
oee [108]3 years ago
6 0
No, it can also be less than 1 depending on the class of the lever.
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True or False? Energy is matter.<br><br> 1. False<br><br> 2. True
andriy [413]

Answer:

False because it has no mass.

Explanation:

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3 years ago
The equation for density is mass divided by volume. the mass of a substance is changed so that it is made of fewer particles. If
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Density is directly proportional to mass. So if there's less matter inside object, its density will also reduce.
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Which characteristic must a food have to receive a “natural” label from the FDA ?
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When a falling meteoroid is at a distance above the Earth's surface of 3.40 times the Earth's radius, what is its acceleration d
Alchen [17]

Answer:

g = 0.85 ms^{-2}

Explanation:

g = \frac{GM}{h^{2} }

were; g is the acceleration due to Earth's gravity, G is Newton's gravitation constant (6.674 x 10^{-11} Nm^{2}kg^{-2}), M is the mass of the earth (5.972 x 10^{24} kg), and h is the distance of meteoroid to the earth.

h = 3.40 x R

  = 3.40 x 6371 km

h = 21661.4 km

  = 21661400 m

Thus,

g = \frac{6.674*10^{-11}*5.972*10^{24}  }{(21661400)^{2} }

  = \frac{3.9857 *10^{14} }{4.6922*10^{14} }

  = 0.84944

g = 0.85 ms^{-2}

The acceleration due to the Earth's gravitation is 0.85 ms^{-2}.

6 0
3 years ago
half life worksheet answer key 3. What percent of a sample As-81 remains un-decayed after 43.2 seconds
Ivahew [28]

The final mass after decay can be obtained by using under given relation:

half life period of As-81 = 33 seconds

mf = mi x (1/2^n)

= 100 x ( 1/2^(43.2/33))

= 40.4 %


3 0
3 years ago
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