3 years ago

Magnetic field lines surrounding a magnet are conventionally drawn

Physics

2 answers:

Lady bird [3.3K]3 years ago

7 0

North to South. Cannot switch around.

satela [25.4K]3 years ago

5 0

B) from north to south

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How much work does a student (m = 60 kg) do when he Climb a tower 80 m high?

gtnhenbr [62]

Answer:

W = 47040 J

Explanation:

Given that,

The mass of a student, m = 60 kg

Height of the tower, h = 80 m

We need to find the work done in climbing the tower. The work done is given by :

W = mgh

So,

W = 60 × 9.8 × 80

W = 47040 J

So, the required work done is 47040 J.

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2 years ago

A certain material has a mass of 565 g while occupying 50 cm3 of space. What is this material?

EastWind [94]

<u>Answer:</u>

Lead

<u>Explanation:</u>

To get the density of the material, the formula would be:

mass divided by volume which is given by $d = \frac { m } { v }$ .

Here in this problem, we are given a mass of $565 g$ which occupies a volume of $50 cm^3$ .

So plugging the data in the above formula to find the density:

Density = $\frac { 565 } { 50 } = 11.3$

From the table, we can see that the material is Lead which has a density of 11.3c/cm^3.

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2 years ago

In your own words, explain Newton’s first law of motion.

Over [174]

Newton's first law of motion states that. an object on the rest or motion is stay the same unless external force applied on it.

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2 years ago

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A 20.0-kg block is initially at rest on a horizontal surface. A horizontal force of 77.0 N is required to set the block in motio

saveliy_v [14]

Answer: The coefficient of static friction is 3.85 and The coefficient of kinetic friction is 2.8

Explanation:

in the attachment

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3 years ago

Why is it, that no matter what we do in life, we die.

shutvik [7]

Answer:

the time comes eventually.

Explanation:

ur body just be giving up

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2 years ago