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3 years ago

What's the relationship between magnetism and birds?

Physics

2 answers:

a_sh-v [17]3 years ago

7 0

Answer:

Birds can see the Earth’s magnetic fields. They just found out that this ability is the result of a special protein in the birds’ eyes.

Explanation:

neonofarm [45]3 years ago

3 0

Answer:

can detect axis of magnetic field

Explanation:

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baseball player hits a line drive estimated to have traveled 145 meters the ball leaves the bat with a horizontal velocity of 40

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Answer:

5800

Explanation:

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3 years ago

Which items did Mendeleev write down on note cards while he was observing

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What is the picture of the cards that Mendeleev put on the notes?

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3 years ago

A particle hangs from a spring and oscillates with a period of 0.2s.If the mass-spring system remained at rest, by how much woul

photoshop1234 [79]

Answer:

The distance the mass would stretch it is $x = 0.00992948$

The correct option is A

Explanation:

From the question we are told that

The period of the slit is $T = 0.2s$

The acceleration due to gravity is $g =9.8 m/s^2$

Generally the period is mathematically represented as

$T = 2 \pi \sqrt{\frac{m}{k} }$

Whee m is the particle and k is the spring constant

making $\frac{m}{k}$ the subject

$\frac{m}{k} = [\frac{T}{2 \pi} ]^2$

The weight on the particle is related to the force stretching the spring by this mathematical relation

$W = F_s$

$mg = kx$

where x is the length by which the spring is stretched

$\frac{m}{k} = \frac{x}{g}$

Substituting the equation above for $\frac{m}{k}$

$[\frac{T}{2 \pi} ]^2 = \frac{x}{g}$

making x the subject

$x = g [\frac{T}{2 \pi} ]$

Substituting the value

$x = 9.8 * [\frac{0.2}{2 * 3.142} ]^2$

$x = 0.00992948$

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3 years ago

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If a 990 kg car is on the road and the Ff is 360 n what is the normal force

Veseljchak [2.6K]

Given that a car is in the road, there is only movement in the x-direction. There is no movement in the y-direction.

Looking at the y-direction for the normal force:

F = N - mg
0 = N - mg, (no movement in y-dir.)
N = mg
N = (990)(9.8)
N = 9702 newtons

The normal force exerted on the car by the road is 9702 newtons.

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3 years ago

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Edwin Hubble was one of the first scientists to show that galaxies are getter farther apart from each other. (A.) True (B.) Fals

lara [203]

The answer is A: True

i hopes this helps :D

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3 years ago

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What's the relationship between magnetism and birds?​

What's the relationship between magnetism and birds?