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2 years ago

If we could stop our eyes from quivering as we stared at a stationary object, the object would probably

Physics

1 answer:

Maurinko [17]2 years ago

8 0

The correct answer is “vanish from sight.” I hope this helps you. Please mark as Brainiest

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Photo used to help with the question is below!! Please answer! Will mark BRAINLIEST!

Kryger [21]

Answer:

false

Explanation: rainbows are caused by reflection

hope this helps :)

6 0

3 years ago

Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes the

Alinara [238K]

Answer:

Kinetic energy of mass A = 20 J

Kinetic energy of mass B = 40 J

Explanation:

Lets take final speed of mass A = v

The final speed of mass B = v'

mass of A= m

mass of B = m'

m = 2 m'

There is no any external force so the linear momentum will be conserve.

Pi = pf

0 = m v + m ' v'

0 = 2 m ' v +m ' v'

v ' = - 2 v

Now from energy conservation

1/2 k x²=1/2 m v² + 1/2 m' v'²

60 = 1/2 m v² + 1/2 m' v'²

m v² + m' v'² = 120

2 m ' (-v'/2)² + m' v'² = 120

m ' v'²/2 + m' v'² = 120

m' v '² = 80

m =2 m' and v ' = - 2 v

m/2 ( 4 v²) = 80

m v ²=40

So the kinetic energy of mass A= 1/2 m v² = 20 J

Kinetic energy of mass B = 1/2 m' v'² = 40 J

4 0

4 years ago

A wave has a frequency of 0.5 kHz and two particles with a phase difference of \pi /3 are 1.5 cm apart. Calculate: the time peri

tatuchka [14]

Answer:

The time period of the wave is 0.002 sec.

Explanation:

Given that,

Frequency = 0.5 kHz

Phase difference $\phi=\dfrac{\pi}{3}$

Path difference = 1.5 cm

We need to calculate the time period

Using formula of time period

The frequency is the reciprocal of time period.

$f =\dfrac{1}{T}$

$T=\dfrac{1}{f}$

Where, f = frequency

Put the value into the formula

$T=\dfrac{1}{0.5\times10^{3}}$

$T=0.002\ sec$

Hence, The time period of the wave is 0.002 sec.

6 0

3 years ago

When sinkholes expand, creating isolated towers of rock, what is occurring?

Illusion [34]

Im pretty sure the answer is D, I may be wrong tho

4 0

3 years ago

Read 2 more answers

The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radiu

iragen [17]

Answer:

(a) 11.3 T

(b) 6.09 T

Explanation:

Current, I = 14 kA = 14000 A

number of turns, N = 900

inner radius, r = 0.7 m

outer radius, R = 1.3 m

The magnetic field due to a circular coil is given by

$B = \frac{\mu o}{4\pi}\times \frac{2 N\pi I}{R}$

(a) The magnetic field due to the inner radius is

$B = 10^{-7}\times \frac{2\times 900\times 3.14\times 14000}{0.7}\\\\B = 11.3 T$

(b) The magnetic field due to the outer radius is

$B = 10^{-7}\times \frac{2\times 900\times 3.14\times 14000}{1.3}\\\\B = 6.09 T$

5 0

3 years ago