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Nina [5.8K]
3 years ago
15

Which statement is true about the ideal mechanical advantage of a third-class lever?

Physics
1 answer:
zhannawk [14.2K]3 years ago
6 0

Answer:

C

Explanation:

The mechanical advantage is always less than 1 because the force needed to move an object is always greater than the weight of the object.

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HELP ASAP!!! The gravitational pull of the Moon is much less than the
katovenus [111]

Answer:

I'm pretty sure its B and C

Explanation:

B bc the weight is gravitational pull x mass so when the object has same mass the weight is smaller on moon

C bc mass is the same - you can't change it

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Complete the sentence to describe what a wave is and what it does.
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A wave is a vibration in mediun tbat carries energy from one place to another.

Explanation:

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A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 118 km
ruslelena [56]

Answer:

x component 60.85 m

y component 101.031 m

Explanation:

We have given distance r = 118 km

Angle which makes from ground = 58.9°

(a) X component of distance  is given by r_x=rcos\Theta =118\times cos58.9=118\times 0.5165=118=60.85m

(b) Y component of distance is given by r_Y=rcos\Theta =118\times sin58.9=118\times 0.8562=101.0316m

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6 0
3 years ago
A scientist discovered an elementary particle paired with another particle. It has a positive charge equal to two–thirds of the
julia-pushkina [17]
W boson has +1e or - 1e charge, Z boson has 0 charge.

Leptons have +1e, -1e or 0 charge.

Photons have 0 charge.

Only quarks have a charge of +2/3e or -1/3e of an electron charge. 

To be exact, only up-type quarks (Up, Down and Top quarks) have a +2/3e or two thirds of an electron charge.

So the correct answer is D) Quark.
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How does the Law of Conservation of Energy explain why ice cubes melt in water?
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Answer:

because it is an ice that is why it melt

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