Explain how you would draw magnetic field lines in the vicinity of this magnet (it is a normal north and south magnet)

Write 4-5 sentences about what the early scientists from Aristotle to Galileo thought about the nature of motion. So far I have

nika2105 [10]

Aristotle would say that an object comes to rest because it got tired. Aristotle came up with ideas, but never tested them. Galileo used experiments and mathematical models to analyze motion. He used a slanted inclined plane an order to slow down the acceleration due to gravity on an object. He found out that an object accelerates as it falls.

8 0

3 years ago

Read 2 more answers

In this week's experiment, you send an unpolarized light beam through two polarizers in series. You orient the first polarizer s

g100num [7]

Answer:

Part a)

$\theta = 90 degree$

so the polarization axis of two polarizers must be at 90 degree

Part b)

$\theta = 20 + 14.3 = 34.3 degree$

(vi) set the second polarizer so that its angular scale reads 34.3 degrees.

Explanation:

Part 1)

As per law of Malus we know that the intensity of light coming from the second polarizer and the intensity of the light from first polarizer is related as

$I = I_o cos^2\theta$

now we know that we rotate the second polarizer till the intensity of the light becomes zero

so we will have

$I = 0$

so we will have

$\theta = 90 degree$

so the polarization axis of two polarizers must be at 90 degree

Part b)

when two axis are inclined at 90 degree then scale reads 104.3 degree

so here the scale exceeds the reading by

$\Delta \theta = 104.3 - 90 = 14.3$

so in order to make them inclined at 20 degree we will have

$\theta = 20 + 14.3 = 34.3 degree$

(vi) set the second polarizer so that its angular scale reads 34.3 degrees.

7 0

4 years ago

A 58.5 kg wood board is resting on very smooth ice in the middle of a frozen lake. A 41.7 kg boy stands at one end of the board.

Anit [1.1K]

The velocity of the wood board which is resting on very smooth ice in the middle of a frozen lake relative to this ice is 0.905 m/s

What is conservation of momentum:

It states the amount of momentum remains constant

Momentum of a moving body is the product of mass times velocity.

Formula for momentum:

P = m* v

When the two objects collides, then the initial collision of the two body is equal to the final collision of two bodies by the law of conservation of momentum.

here,

mass of wood, m=58.5 kg

mass of boy, M=41.7 kg

velocity of the boy V=1.27 m/s

Thus,

The conservation of momentum,

m*v = M*V

substituting the value,

(58.5*v) = 1.27* 41.7

v = 52.95 / 58.5

v = 0.905 m/s

Thus, the velocity of the wood board which is resting on very smooth ice in the middle of a frozen lake relative to this ice is 0.905 m/s.

Learn more about the conservation of momentum here;

brainly.com/question/3920210

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8 0

2 years ago

A dog is sniffing around for a bone. He walks 3.6 m east and 6.0 m north. What are the magnitude and direction of the dog from h

Ksju [112]

Vectorial form:

     3.6 m east => 3i

     6.0 north => 6 j

     Final position = 3.6i + 6j

Magnitude = √[ (3.6)^2 + 6^2] = √[12.96 + 36] = √48.96 = 7.0 m

Direction => arc tan (6/3.6) = arc tan (1.67) = 59.0 °

Answer: the dog is at 7.0 m, 59.0° to the north of the east from the starting point.

6 0

3 years ago

Do you think the plan for the skyscraper in California is appropriate based on its location? Why or why not? Your answer should

Anettt [7]

Answer:

No

Explanation:

No because like my other answer if we put to many diesels on it it will crack and little by little it will break eventually everyone will come tumbling into the water making them drown because they can't get the buckles loose or they wanted to save their families lives

5 0

3 years ago