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jeyben [28]
3 years ago
9

How does 3rd class lever make our work easier

Physics
2 answers:
Bogdan [553]3 years ago
8 0

Answer:

the third class lever makes our work easier as effort is located at the middle, load at first and fore is applied at the buttom. which helps in accelerating work.

hope it is helpful to you

sineoko [7]3 years ago
7 0
In a third class lever, the effort is located between the load and the fulcrum. If the fulcrum is closer to the load, then less effort is needed to move the load. If the fulcrum is closer to the effort, then the load will move a greater distance. ... These levers are useful for making precise movements.
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What does the doppler effect tell astronomers about the universe
Luden [163]
The doppler effect has red and blue shifts. A red shift means something is moving farther away, and a blue shift means it is moving closer. The universe has a red shift, and since a red shift means that it is moving farther away, this tells astronomers that the universe is still expanding.
7 0
3 years ago
The value of g is greater at the poles than at the equator why ​
babunello [35]

Answer:

because the gravitational pull is maximum at the poles and decreases as it comes down toward the equator.

6 0
3 years ago
point) A tank in the shape of an inverted right circular cone has height 5 meters and radius 4 meters. It is filled with 4 meter
zysi [14]

Answer:

W = 907963.50 J = 907.96 J

Explanation:

Note: Refer to the figure attached

Now, from the figure we have similar triangles ΔAOB and ΔCOD

we have

\frac{5}{4}=\frac{x}{r}

or

r=\frac{4x}{5}

Now, the work done to empty the tank can be given as:

W = \int\limits^4_0 {(5-x)\rho\times g A} \, dx

or

W = \int\limits^4_0 {(5-x)1080\times 9.8 (\pi r^2)} \, dx

or

W = \int\limits^4_0 {(5-x)\times10584\times (\pi (\frac{4x}{5})^2)} \, dx

or

W = 6773.76\pi\int\limits^4_0 {(5-x)x^2)} \, dx

or

W = 6773.76\pi[\frac{5}{3}x^3-\frac{1}{4}x^4]^4_0

or

W = 6773.76\pi[\frac{128}{3}]

or

W = 907963.50 J = 907.96 J

7 0
3 years ago
If a person applies the same amount of force to an object what would
AURORKA [14]

Answer:

<em>A rock because </em>

Explanation:

3 0
3 years ago
Read 2 more answers
Ekaferini Stefandi of Greece won the women's pole vault at the 2016 Games in Rio with a vault height of 4.85 m. We are going to
Alecsey [184]

Answer:8.68 m/s

Explanation:

Given

If the height of vault is h=4.85 m

her center of mass is 1 m above ground

Net height h=3.85 m

conserving energy

Kinetic Energy=gain in Potential Energy

\frac{1}{2}mv^2=mgh

v=\sqrt{2gh}

v=\sqrt{2\times 9.8\times 3.85}

v=\sqrt{75.46}

v=8.68 m/s

3 0
3 years ago
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