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3 years ago

Which force has an infinite range and is always attractive

Physics

1 answer:

leva [86]3 years ago

5 0

Answer:

Gravitational Force.

Explanation:

Being one of the fundamental forces of nature, gravitational force is the weakest but has an infinite range. It is always attractive and acts between any two pieces of matter in nature.

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A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm and a fulcrum (or pivot point

Nonamiya [84]

Answer:

1.52 m

Explanation:

We are given that

Maximum force=F=679 N

Mass of rock ,m=385 kg

Distance,d=0.233 m

We have to find the minimum total length L of the rod required to move the rock.

Torque on rock= $T_1=mgd=385\times 9.8\times 0.233=879.11 N$

Where $g=9.8m/s^2$

Torque on man= $T_2=Force\times distance=(L-d)\times 679=(L-0.233)\times 679$

$T_1=T_2$

$(L-0.233)\times 679=879.11$

$L-0.233=\frac{879.11}{679}=1.29$

$L=1.29+0.233=1.523\approx 1.52 m$

Hence, the minimum total length of rod=1.52 m

3 0

3 years ago

You are 2.4 from a plane mirror, and you would like to take a picture of yourself in the mirror. You need to manually adjust the

Wittaler [7]

Answer:

option (D)

Explanation:

your distance from the plane mirror = 2.4 m

According to the property of the plane mirror, the distance between the object and the mirror is equal to the distance between the image and the mirror.

So, the distance between you and your image is two times the distance between you and mirror.

the distance between you and your image = 2 x 2.4 = 4.8 m

5 0

3 years ago

How do asteroids and comets differ?

aalyn [17]

Answer:

Explained

Explanation:

Asteroids: Asteroids are generally made up of rocky material, metals and their size are large in comparison to comets. Asteroid belt is found between Jupiter and Mars.

Comets: Comets are made up of ice, dust and rocky material. Generally smaller in size and are far from the Sun. With each orbit nearing the sun ice of the comet vaporize in form of blazing tail.

4 0

3 years ago

two parallel plates of area 5.68*10^-4 m^2 have equal and opposite charges of 8.38*10^-11 C placed on them. what is the electric

shutvik [7]

Answer: unit n/c

Explanation: This should be the answer because I just asked my Physics Teachers I hope this is correct

Hope This Helps :)

4 0

3 years ago

Read 2 more answers

In a computer simulation, Juan moves a magnet (Magnet 1) closer to another magnet (Magnet 2) that cannot move. Which statement a

tekilochka [14]